Merge pull request 'feat(month): month view style picker + Split pull-to-expand (#38, #53)' (!90) from feat/month-view-style into release/v2.16.0

Reviewed-on: #90

.gitea/workflows/translations.yaml

@@ -3,13 +3,15 @@ name: Translations
 # Fast, SDK-free parity check for translation resources, so Weblate PRs (which
 # only touch values-*/strings.xml) get quick feedback without the full Android
 # build. The deeper checks still run in CI via lintDebug (ExtraTranslation).
+#
+# Runs on every PR (no path filter) so the required "Translations / check"
+# status is always reported — like the `ci` job. A path-filtered workflow is
+# skipped on unrelated PRs and never posts its status, which leaves that
+# required check pending forever and blocks the merge of any code-only PR into a
+# release/* branch. The check itself is cheap and simply passes when the
+# committed translations are consistent, so always running it costs nothing.
 on:
   pull_request:
-    paths:
-      - 'app/src/main/res/values*/strings.xml'
-      - 'app/src/main/res/xml/locales_config.xml'
-      - 'scripts/check_translations.py'
-      - '.gitea/workflows/translations.yaml'
 
 concurrency:
   group: translations-${{ github.ref }}

CHANGELOG.md

@@ -5,6 +5,194 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Added
+- Choose how the month view is laid out. A new **Month view style** setting
+  (Settings → Views) offers three ways to read a month, each shown with a
+  preview of the layout it produces:
+  - **Pages** — what you have today: one month at a time, swiped sideways.
+  - **Continuous** — scroll up and down through the weeks without a break
+    between months. Because the weeks run on unbroken, no month is cut off and
+    no day appears twice, where paging repeats a boundary week at the end of one
+    month and the start of the next. The 1st of each month names itself so you
+    always know where you are, and the title bar keeps up as you scroll ([#38]).
+  - **Split** — a compact grid showing coloured dots for the days that have
+    something on them, with the day you tap listed in full underneath. Tap the
+    date above the list to open the whole day ([#53]).
+
+  The Agenda view is untouched by this and stays available in all three styles —
+  the split layout lists a single day, while Agenda remains a rolling multi-day
+  window with its own range settings.
+
+### Fixed
+- The "Upcoming" agenda widget now scales its text and rows to the size you give
+  it. Previously it was laid out once for the smallest size and simply stretched
+  when enlarged, so the text stayed small no matter how big you made the widget.
+  Now a bigger widget gets bigger, more readable type and roomier rows, while the
+  default size looks exactly as before — no new setting; it follows the size you
+  already chose ([#51]).
+
+## [2.16.0] — 2026-07-17
+
+### Added
+- Give an event its own time zone. A new **Time zone** field (under "more
+  fields" in the event form) pins an event to a specific zone, so a call set for
+  8:00 AM in New York stays 8:00 AM in New York wherever you open it — and keeps
+  tracking that zone across daylight-saving changes instead of drifting an hour.
+  The form edits the event in its own zone and shows the local equivalent under
+  the times ("2:00 PM – 3:00 PM your time"); the event's details keep your local
+  time first and note the original beneath it, so both are always clear. Pick a
+  zone from a full-screen picker with your device zone and recent choices on top,
+  searching by city ("new york"), IANA id ("europe/berlin"), or abbreviation
+  ("CEST") to gather every matching zone at once. All-day events stay
+  date-anchored and carry no zone, as before ([#31]).
+- Put the "jump to today" button in the toolbar. A new **Today button in
+  toolbar** setting (Settings → Appearance, off by default) swaps the floating
+  button that fades into the corner while you're away from today for a permanent
+  today icon in the top bar — always there, on today or not, matching the
+  familiar calendar-app pattern. Leave it off to keep the floating button as
+  before ([#60]).
+
+### Changed
+- Dates in the Month, Week and Day title bars now follow your language and
+  region instead of one hardcoded layout. Every date was rendered in a fixed
+  German-style order with a trailing dot on the day number, whatever your
+  settings: US English showed "Fri, 17. Jul 2026" where it should read
+  "Fri, Jul 17". The Agenda view already formatted correctly, so the two
+  disagreed about the same date. All four views now share one formatter, and the
+  day/month order, the separators and the ordinal all come from your locale —
+  so English-in-Germany reads "Fri, 17 Jul" and English-in-the-US "Fri, Jul 17",
+  each correct for where you are ([#60]).
+- The title bar drops the year while you're in the current one — "July" rather
+  than "July 2026". The year reappears the moment you page out of the current
+  year, which is when it tells you something you didn't already know.
+- The Week view's title now names the month instead of spelling out the day range.
+  "24. Jun – 31. Jun" restated the day numbers already printed in the column
+  headers right below it, in the widest string in the bar. A week that straddles
+  two months keeps the outgoing month until it is fully gone ([#60]).
+
+### Fixed
+- An all-day event no longer shows up again the day after it happened. In time
+  zones east of UTC, an all-day event — a birthday, say — set for one day also
+  appeared under the *next* day's heading in the Agenda (and the agenda widget),
+  because all-day events are anchored to UTC midnight and the following day's
+  window reached back across that boundary and pulled the event forward onto
+  "today". Each all-day event now lists only on the day it actually falls on
+  ([#65]).
+
+## [2.15.0] — 2026-07-15
+
+### Added
+- Show raw calendar colours. Calendula normally softens each calendar and event
+  colour toward a theme-fitting pastel so harsh sync colours read well on both
+  light and dark; a new **Soften calendar colours** setting (Settings → Design,
+  on by default) lets you turn that off and paint the exact colours your calendar
+  source publishes — matching DAVx5/CalDAV and other calendar apps. Thanks to
+  @leonp5 for the report ([#36]).
+- Readable titles on dark event colours. An event bar's title now shows in white
+  on a dark colour and near-black on a light one, chosen automatically from the
+  colour's brightness, so a deep blue or purple event is legible at a glance in
+  the busy Week and Month views instead of dark-on-dark. This applies whether or
+  not colours are softened. Thanks to @ptab for the suggestion ([#21]).
+- A custom snooze duration. The **Snooze duration** setting (Settings →
+  Notifications) gains a **Custom…** option next to the minute presets: pick any
+  amount and switch between minutes and hours, so a snoozed reminder comes back
+  after exactly the delay you want instead of only a preset one ([#40]).
+- Move an event to another calendar. When editing an existing event, the
+  calendar row is now tappable — pick a different calendar and saving moves the
+  event across, instead of having to delete it and recreate it elsewhere.
+  Recurring series move as a whole, keeping their individually-edited and
+  cancelled occurrences, and any reminders and guests come along too. A calendar
+  can't simply be reassigned underneath an event, so Calendula recreates it on
+  the target and removes the original — the same approach other calendar apps
+  take. Thanks to @prismplex for the suggestion ([#39]).
+- Open an event straight into the edit form from another app. Calendula already
+  answered the "new event" and "open this event" hand-offs from other apps and
+  widgets; it now also answers the "edit this event" one, so an assistant, task
+  app, or widget can send an existing event to Calendula and land on its edit
+  screen rather than the read-only details. A hand-off with no event attached
+  opens the same prefilled create form as "new event". Calendula also recognises
+  a couple more file labels the same calendar data arrives under (`.vcs`
+  vCalendar files and the `application/ics` type), so opening or sharing those
+  into Calendula works too.
+- Keep today at the top of the agenda. A new **Always show today** setting
+  (Settings → Agenda, on by default) anchors today as the first entry in both the
+  Agenda screen and its home-screen widget even once nothing is left today —
+  under today's header a "No more events today" note appears — so the first
+  events you see are clearly today's rather than a future day's. Turn it off to
+  keep the agenda purely upcoming. Thanks to @ptab for the suggestion ([#35]).
+- Duplicate an event. The event details now carry a **Duplicate** action that
+  opens the editor pre-filled with a copy of the event as a new, unsaved one, so
+  a one-off like a shift or an appointment can be recreated by just changing the
+  day and time instead of re-typing every field. The copy keeps the original's
+  time, and its title, location, notes, colour, guests and reminders come along;
+  it's saved as its own single event (any repeat is left off — add one in the
+  editor if you want it). Duplicate works from read-only calendars too, dropping
+  the copy into a writable one. Thanks to @internet-rando for the suggestion
+  ([#52]).
+- French and Polish, in early form. Calendula has started speaking French and
+  Polish, both contributed as community translations through
+  [Calendula's Weblate](https://weblate.dev.jeanlucmakiola.de/projects/calendula/).
+  They are partway there, so untranslated parts still show in English until they
+  fill out — you can already pick either under Settings → Language or in Android's
+  per-app language settings. Thanks to Thomas Tref (French) and Bazyli Cyran
+  (Polish) for getting them started; help finishing them is very welcome.
+
+### Fixed
+- Reminders for events on another day no longer read as if they were today. A
+  reminder fired ahead of time — say, the day before — used to show only the
+  event's time, making it look like it was happening now. The notification now
+  says which day: **Tomorrow** or **Yesterday**, the weekday for another day this
+  week, or the date for anything further out. Thanks to @moonj for the report
+  ([#46]).
+- Agenda dates now read in your locale's format. The agenda's range bar and its
+  day headers used a fixed day-month-year layout — and the range span even mixed
+  two orders (e.g. "15 Jul – Aug 13, 2026") — instead of following your language's
+  conventions. Dates across the agenda and its widget now use your locale's own
+  field order, matching the rest of the app. The range bar also no longer repeats
+  the range's name from the selector button beside it, showing just the dates.
+- Calendar gutters line up with the menu button. The Month view's week-number
+  column, and the Week and Day views' hour labels, sat a few pixels left of the
+  hamburger menu above them; they now line up with it. In Month view the day
+  cells also sit squarely under their weekday letters.
+
+## [2.14.1] — 2026-07-13
+
+### Fixed
+- Deleting one occurrence of a repeating event no longer breaks the series.
+  Choosing "This event" when deleting an occurrence of a recurring event could
+  wipe out every *other* occurrence while leaving the one you deleted behind as
+  a stale, still-tappable ghost — and deleting it again brought the series back.
+  A single-occurrence delete now removes exactly that occurrence and leaves the
+  rest of the series untouched, and the deleted occurrence disappears from the
+  grid straight away. This holds on every kind of calendar, including the
+  on-device ones Calendula keeps for contact birthdays and anniversaries, where
+  the series is a yearly repeat. Thanks to @moonj for the report ([#47]).
+- Tapping an event in a third-party widget opens it in Calendula. v2.13.1 taught
+  Calendula to answer the "new event" hand-off from other apps and widgets; now
+  it also answers the "open this event" one, so tapping an existing event in a
+  widget such as Todo Agenda offers Calendula and lands on that event's details.
+  Thanks to @bushrang3r for the report ([#48]).
+- Events created from other apps get your default reminder. An event handed over
+  by another app or widget — Google Maps' "add to calendar", the Todo Agenda
+  widget's "+" — opened with no reminder at all, ignoring the default set in
+  Settings. It now starts with your default reminder, the same as an event you
+  create in Calendula. An event opened from an `.ics` file is treated differently,
+  because the file has its own say: Calendula keeps whatever reminders it carries
+  (including none at all) and asks you once whether to apply your default instead
+  — it never quietly overrides the file. If you have no default set, it doesn't
+  ask ([#49]).
+- A tidy colour picker on CalDAV calendars. For calendars synced by a CalDAV
+  app (such as DAVx5), the event colour picker showed every colour the account
+  publishes — nearly 150 swatches in alphabetical order, many of them
+  duplicates or near-identical shades. The picker now shows only visually
+  distinct colours, arranged as a rainbow; near-duplicate shades and the
+  washed-out neutrals are folded away so no two swatches look alike. Picked
+  colours still sync exactly as before, and calendars with hand-picked
+  palettes (like Google's) are unaffected. Thanks to @ptab for the report
+  ([#22]).
+
 ## [2.14.0] — 2026-07-06
 
 ### Added
@@ -865,12 +1053,29 @@ automatically, with zero telemetry and no internet permission.
 [#18]: https://codeberg.org/jlmakiola/calendula/issues/18
 [#19]: https://codeberg.org/jlmakiola/calendula/issues/19
 [#20]: https://codeberg.org/jlmakiola/calendula/issues/20
+[#22]: https://codeberg.org/jlmakiola/calendula/issues/22
 [#24]: https://codeberg.org/jlmakiola/calendula/issues/24
 [#25]: https://codeberg.org/jlmakiola/calendula/issues/25
 [#27]: https://codeberg.org/jlmakiola/calendula/issues/27
 [#29]: https://codeberg.org/jlmakiola/calendula/issues/29
+[#21]: https://codeberg.org/jlmakiola/calendula/issues/21
 [#30]: https://codeberg.org/jlmakiola/calendula/issues/30
+[#31]: https://codeberg.org/jlmakiola/calendula/issues/31
 [#32]: https://codeberg.org/jlmakiola/calendula/issues/32
 [#33]: https://codeberg.org/jlmakiola/calendula/issues/33
 [#34]: https://codeberg.org/jlmakiola/calendula/issues/34
+[#36]: https://codeberg.org/jlmakiola/calendula/issues/36
 [#37]: https://codeberg.org/jlmakiola/calendula/issues/37
+[#39]: https://codeberg.org/jlmakiola/calendula/issues/39
+[#35]: https://codeberg.org/jlmakiola/calendula/issues/35
+[#40]: https://codeberg.org/jlmakiola/calendula/issues/40
+[#46]: https://codeberg.org/jlmakiola/calendula/issues/46
+[#47]: https://codeberg.org/jlmakiola/calendula/issues/47
+[#48]: https://codeberg.org/jlmakiola/calendula/issues/48
+[#49]: https://codeberg.org/jlmakiola/calendula/issues/49
+[#51]: https://codeberg.org/jlmakiola/calendula/issues/51
+[#52]: https://codeberg.org/jlmakiola/calendula/issues/52
+[#38]: https://codeberg.org/jlmakiola/calendula/issues/38
+[#53]: https://codeberg.org/jlmakiola/calendula/issues/53
+[#60]: https://codeberg.org/jlmakiola/calendula/issues/60
+[#65]: https://codeberg.org/jlmakiola/calendula/issues/65

app/build.gradle.kts

@@ -28,8 +28,8 @@ android {
         // which builds this version and then creates the matching vX.Y.Z tag +
         // release itself (versionCode is pinned to MAJOR*10000 + MINOR*100 +
         // PATCH from versionName, e.g. 2.7.2 -> 20702). See docs/RELEASING.md.
-        versionCode = 21400
-        versionName = "2.14.0"
+        versionCode = 21600
+        versionName = "2.16.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }

app/src/androidTest/java/de/jeanlucmakiola/calendula/data/calendar/CalendarRepositorySmokeTest.kt

@@ -9,6 +9,7 @@ import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.GrantPermissionRule
 import com.google.common.truth.Truth.assertThat
 import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
+import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.runBlocking
@@ -31,7 +32,12 @@ class CalendarRepositorySmokeTest {
         val store: DataStore<Preferences> = PreferenceDataStoreFactory.create(
             produceFile = { context.cacheDir.resolve("smoke_test_prefs.preferences_pb") },
         )
-        return CalendarRepositoryImpl(dataSource, CalendarPrefs(store), Dispatchers.IO)
+        return CalendarRepositoryImpl(
+            dataSource,
+            CalendarPrefs(store),
+            SettingsPrefs(store),
+            Dispatchers.IO,
+        )
     }
 
     @Test

app/src/main/AndroidManifest.xml

@@ -63,10 +63,9 @@
             android:exported="true"
             android:launchMode="singleTop"
             android:windowSoftInputMode="adjustResize">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
+            <!-- The MAIN/LAUNCHER entry (the launcher icon + its label) lives on
+                 the two <activity-alias> below, so the app name can be switched at
+                 runtime (issue #44). MainActivity keeps every other filter. -->
 
             <!-- Be selectable as the system calendar app. Android has no API for
                  an app to make itself the default, so registering the filters
@@ -97,37 +96,115 @@
                 <data android:mimeType="time/epoch" />
             </intent-filter>
 
-            <!-- Open a .ics file (file manager / email attachment / browser). -->
+            <!-- Open a .ics/.vcs file (file manager / email attachment / browser).
+                 The three MIME types cover the common labels the same calendar
+                 data arrives under: iCalendar 2.0 (text/calendar), the older
+                 vCalendar 1.0 / .vcs (text/x-vcalendar), and application/ics some
+                 mail apps emit — Android cross-products the scheme and mimeType
+                 tags, so each MIME is accepted on both schemes (matches Etar). -->
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
-                <data android:scheme="content" android:mimeType="text/calendar" />
-                <data android:scheme="file" android:mimeType="text/calendar" />
+                <data android:scheme="content" />
+                <data android:scheme="file" />
+                <data android:mimeType="text/calendar" />
+                <data android:mimeType="text/x-vcalendar" />
+                <data android:mimeType="application/ics" />
             </intent-filter>
-            <!-- Receive a .ics shared from another app. -->
+            <!-- Receive a .ics/.vcs shared from another app (same MIME set). -->
             <intent-filter>
                 <action android:name="android.intent.action.SEND" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="text/calendar" />
+                <data android:mimeType="text/x-vcalendar" />
+                <data android:mimeType="application/ics" />
             </intent-filter>
 
             <!-- Let another app or widget (e.g. the Todo Agenda widget) launch us
                  to create a new event, the way the AOSP calendar accepts it:
                  ACTION_INSERT on the events dir mime type, carrying the new
                  event's fields as CalendarContract extras
-                 (MainActivity.insertFormOrNull, issue #30). -->
+                 (MainActivity.insertFormOrNull, issue #30). ACTION_EDIT on the
+                 dir mime is AOSP's "edit a new event" — i.e. create — so it maps
+                 to the same prefilled create form. -->
             <intent-filter>
                 <action android:name="android.intent.action.INSERT" />
+                <action android:name="android.intent.action.EDIT" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="vnd.android.cursor.dir/event" />
             </intent-filter>
 
-            <!-- Launcher long-press shortcuts (e.g. "New event"). -->
+            <!-- Edit an existing event another app/assistant/widget points at:
+                 ACTION_EDIT on content://com.android.calendar/events/<id>, the way
+                 AOSP fires it. Opens the occurrence in the edit form (not the
+                 read-only detail — that's the VIEW filter above). Matched by the
+                 provider's item MIME type, like the VIEW filter. The occurrence's
+                 times ride as EXTRA_EVENT_BEGIN_TIME / EXTRA_EVENT_END_TIME when
+                 supplied (MainActivity.editEventKeyOrNull). -->
+            <intent-filter>
+                <action android:name="android.intent.action.EDIT" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="vnd.android.cursor.item/event" />
+            </intent-filter>
+
+            <!-- Open an existing event another app/widget points at (e.g. tapping
+                 an event in the Todo Agenda widget): ACTION_VIEW on
+                 content://com.android.calendar/events/<id>, the way AOSP fires it.
+                 Matched by the provider's item MIME type, not the path — a
+                 content: VIEW intent carries the resolved type
+                 (vnd.android.cursor.item/event) and a path-only filter wouldn't
+                 match it. The occurrence's times ride as EXTRA_EVENT_BEGIN_TIME /
+                 EXTRA_EVENT_END_TIME when the launcher supplies them
+                 (MainActivity.viewEventKeyOrNull, issue #48). -->
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:mimeType="vnd.android.cursor.item/event" />
+            </intent-filter>
+
+        </activity>
+
+        <!-- Launcher entry for MainActivity, split into two aliases so the app's
+             launcher name can be switched at runtime between "Calendula" and
+             "Calendar" (issue #44). Exactly one is enabled at a time; the app
+             flips them via PackageManager.setComponentEnabledSetting
+             (LauncherNameManager). The shortcuts meta-data lives here, not on
+             MainActivity, because static shortcuts are published by whichever
+             component owns the MAIN/LAUNCHER filter. -->
+        <activity-alias
+            android:name=".DefaultNameAlias"
+            android:enabled="true"
+            android:exported="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:roundIcon="@mipmap/ic_launcher_round"
+            android:targetActivity=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
             <meta-data
                 android:name="android.app.shortcuts"
                 android:resource="@xml/shortcuts" />
-        </activity>
+        </activity-alias>
+        <activity-alias
+            android:name=".CalendarNameAlias"
+            android:enabled="false"
+            android:exported="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name_calendar_alias"
+            android:roundIcon="@mipmap/ic_launcher_round"
+            android:targetActivity=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts" />
+        </activity-alias>
 
         <!-- Standalone surface for a captured crash report. MainActivity routes
              here on a startup crash-loop, so it stays clear of the app's Hilt

app/src/main/java/de/jeanlucmakiola/calendula/MainActivity.kt

@@ -29,9 +29,11 @@ import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.buildInsertEventForm
 import de.jeanlucmakiola.calendula.ui.RootScreen
 import de.jeanlucmakiola.calendula.ui.common.LocalShowHourLines
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
 import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.WidgetNavRequest
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
+import de.jeanlucmakiola.calendula.ui.detail.EventDetailViewModel.Companion.NO_OCCURRENCE_TIME
 import de.jeanlucmakiola.floret.components.DebugRibbon
 import de.jeanlucmakiola.calendula.ui.crash.CrashReportActivity
 import de.jeanlucmakiola.calendula.domain.FontRole
@@ -69,6 +71,11 @@ class MainActivity : AppCompatActivity() {
     // CalendarHost, which opens it in the create form for review.
     private var requestedInsertForm by mutableStateOf<EventForm?>(null)
 
+    // An external "edit this event" (ACTION_EDIT on content://.../events/<id>):
+    // opens the occurrence in the edit form. Same occurrence-key shape as the
+    // detail channel; consumed once by CalendarHost.
+    private var requestedEditKey by mutableStateOf<LongArray?>(null)
+
     // A captured crash report awaiting the user's decision, surfaced as a dialog
     // over the calendar on the next launch (the single-crash path). A startup
     // crash-loop is handled out of band, before setContent — see below.
@@ -90,10 +97,11 @@ class MainActivity : AppCompatActivity() {
         }
 
         enableEdgeToEdge()
-        requestedDetailKey = intent.detailKeyOrNull()
+        requestedDetailKey = intent.detailKeyOrNull() ?: intent.viewEventKeyOrNull()
         requestedNav = intent.navRequestOrNull()
         requestedImportUri = intent.importUriOrNull()
         requestedInsertForm = intent.insertFormOrNull()
+        requestedEditKey = intent.editEventKeyOrNull()
         if (CrashReporter.shouldPrompt(this)) pendingCrashReport = CrashReporter.pendingReport(this)
         setContent {
             // One activity-scoped SettingsViewModel drives both the theme here
@@ -133,6 +141,7 @@ class MainActivity : AppCompatActivity() {
                     CompositionLocalProvider(
                         LocalUse24HourFormat provides use24Hour,
                         LocalShowHourLines provides settings.showHourLines,
+                        LocalSoftenColors provides settings.softenColors,
                     ) {
                         RootScreen(
                             modifier = Modifier.fillMaxSize(),
@@ -144,6 +153,8 @@ class MainActivity : AppCompatActivity() {
                             onImportConsumed = { requestedImportUri = null },
                             requestedInsertForm = requestedInsertForm,
                             onInsertConsumed = { requestedInsertForm = null },
+                            requestedEditKey = requestedEditKey,
+                            onEditKeyConsumed = { requestedEditKey = null },
                         )
                     }
                     // A persistent corner marker so a debug build is never
@@ -178,10 +189,11 @@ class MainActivity : AppCompatActivity() {
 
     override fun onNewIntent(intent: Intent) {
         super.onNewIntent(intent)
-        intent.detailKeyOrNull()?.let { requestedDetailKey = it }
+        (intent.detailKeyOrNull() ?: intent.viewEventKeyOrNull())?.let { requestedDetailKey = it }
         intent.navRequestOrNull()?.let { requestedNav = it }
         intent.importUriOrNull()?.let { requestedImportUri = it }
         intent.insertFormOrNull()?.let { requestedInsertForm = it }
+        intent.editEventKeyOrNull()?.let { requestedEditKey = it }
     }
 
     /**
@@ -202,13 +214,19 @@ class MainActivity : AppCompatActivity() {
     }
 
     /**
-     * A prefilled new-event form from an external `ACTION_INSERT` launch — another
-     * app or widget (e.g. Todo Agenda) asking us to create an event (issue #30).
-     * The new event's fields ride as CalendarContract extras; anything omitted
-     * falls back to the in-app "new event" defaults in [buildInsertEventForm].
+     * A prefilled new-event form from an external launch asking us to create an
+     * event — another app or widget (e.g. Todo Agenda) firing `ACTION_INSERT`
+     * (issue #30), or `ACTION_EDIT` with no concrete event id (AOSP's "edit a new
+     * event", i.e. create). The new event's fields ride as CalendarContract
+     * extras; anything omitted falls back to the in-app "new event" defaults in
+     * [buildInsertEventForm].
      */
     private fun Intent.insertFormOrNull(): EventForm? {
-        if (action != Intent.ACTION_INSERT) return null
+        // ACTION_EDIT on an existing event routes to the edit form instead
+        // ([editEventKeyOrNull]); only an id-less EDIT is a create.
+        val isCreate = action == Intent.ACTION_INSERT ||
+            (action == Intent.ACTION_EDIT && editEventKeyOrNull() == null)
+        if (!isCreate) return null
         return buildInsertEventForm(
             beginMillis = longExtraOrNull(CalendarContract.EXTRA_EVENT_BEGIN_TIME),
             endMillis = longExtraOrNull(CalendarContract.EXTRA_EVENT_END_TIME),
@@ -293,6 +311,55 @@ class MainActivity : AppCompatActivity() {
         )
     }
 
+    /**
+     * The detail key for an external "open this event" — ACTION_VIEW on
+     * `content://com.android.calendar/events/<id>`, the way AOSP fires it (e.g.
+     * tapping an existing event in the Todo Agenda widget, issue #48). Reuses the
+     * same occurrence-key channel as reminder taps. The launcher passes the
+     * occurrence's times as `EXTRA_EVENT_BEGIN_TIME` / `EXTRA_EVENT_END_TIME` when
+     * it has them; a bare URI omits them, so we carry [NO_OCCURRENCE_TIME] and
+     * [EventDetailViewModel] falls back to the event row's own DTSTART/DTEND
+     * rather than rendering at the epoch.
+     */
+    private fun Intent.viewEventKeyOrNull(): LongArray? {
+        if (action != Intent.ACTION_VIEW) return null
+        val uri = data ?: return null
+        if (uri.host != CALENDAR_PROVIDER_HOST) return null
+        val segments = uri.pathSegments
+        if (segments.firstOrNull() != "events") return null
+        val eventId = segments.getOrNull(1)?.toLongOrNull() ?: return null
+        return longArrayOf(
+            eventId,
+            longExtraOrNull(CalendarContract.EXTRA_EVENT_BEGIN_TIME) ?: NO_OCCURRENCE_TIME,
+            longExtraOrNull(CalendarContract.EXTRA_EVENT_END_TIME) ?: NO_OCCURRENCE_TIME,
+        )
+    }
+
+    /**
+     * The occurrence key for an external "edit this event" — `ACTION_EDIT` on
+     * `content://com.android.calendar/events/<id>`, the way AOSP fires it (e.g.
+     * an assistant, task app, or widget that wants to open the event for editing
+     * rather than viewing). Opens it in the edit form. Reuses the same
+     * occurrence-key channel as reminder/view taps; the caller passes the
+     * occurrence's times as `EXTRA_EVENT_BEGIN_TIME` / `EXTRA_EVENT_END_TIME`
+     * when it has them, otherwise we carry [NO_OCCURRENCE_TIME] and
+     * [EventEditViewModel.openForEdit] falls back to the event row's own
+     * DTSTART/DTEND. An id-less `ACTION_EDIT` is a create instead ([insertFormOrNull]).
+     */
+    private fun Intent.editEventKeyOrNull(): LongArray? {
+        if (action != Intent.ACTION_EDIT) return null
+        val uri = data ?: return null
+        if (uri.host != CALENDAR_PROVIDER_HOST) return null
+        val segments = uri.pathSegments
+        if (segments.firstOrNull() != "events") return null
+        val eventId = segments.getOrNull(1)?.toLongOrNull() ?: return null
+        return longArrayOf(
+            eventId,
+            longExtraOrNull(CalendarContract.EXTRA_EVENT_BEGIN_TIME) ?: NO_OCCURRENCE_TIME,
+            longExtraOrNull(CalendarContract.EXTRA_EVENT_END_TIME) ?: NO_OCCURRENCE_TIME,
+        )
+    }
+
     companion object {
         // The calendar provider's authority/host. A date tap arrives as
         // ACTION_VIEW on content://com.android.calendar/time/<epochMillis>.

app/src/main/java/de/jeanlucmakiola/calendula/data/appname/LauncherNameManager.kt

@@ -0,0 +1,109 @@
+package de.jeanlucmakiola.calendula.data.appname
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.pm.PackageManager
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/** The launcher label the app shows for itself (issue #44). */
+enum class LauncherName { CALENDULA, CALENDAR }
+
+/** The two launcher aliases declared in the manifest. */
+enum class LauncherAlias { DEFAULT, CALENDAR }
+
+/** One component-enable change in a [aliasWritePlan]. */
+data class AliasStateChange(val alias: LauncherAlias, val enabled: Boolean)
+
+/**
+ * Interpret the `CalendarNameAlias` component-enabled state as a [LauncherName].
+ * Only [PackageManager.COMPONENT_ENABLED_STATE_ENABLED] means the "Calendar"
+ * name is active; `DEFAULT` (never toggled) and `DISABLED` both resolve to the
+ * manifest default, "Calendula".
+ */
+fun launcherNameFor(calendarAliasState: Int): LauncherName =
+    if (calendarAliasState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
+        LauncherName.CALENDAR
+    } else {
+        LauncherName.CALENDULA
+    }
+
+/**
+ * The ordered enable/disable steps to switch the launcher name to [target].
+ * Always **enables the target alias first, then disables the other** — the two
+ * `setComponentEnabledSetting` calls are not atomic, and this ordering means the
+ * only transient the launcher can observe is a harmless two-entry state, never a
+ * zero-entry one (which would briefly drop the app from the launcher).
+ */
+fun aliasWritePlan(target: LauncherName): List<AliasStateChange> = when (target) {
+    LauncherName.CALENDAR -> listOf(
+        AliasStateChange(LauncherAlias.CALENDAR, enabled = true),
+        AliasStateChange(LauncherAlias.DEFAULT, enabled = false),
+    )
+    LauncherName.CALENDULA -> listOf(
+        AliasStateChange(LauncherAlias.DEFAULT, enabled = true),
+        AliasStateChange(LauncherAlias.CALENDAR, enabled = false),
+    )
+}
+
+/**
+ * Switches the app's launcher label between "Calendula" and "Calendar" by
+ * enabling/disabling the two `<activity-alias>` components (issue #44). The
+ * component-enabled state is the single source of truth — there is no persisted
+ * preference — so [current] reads it straight from [PackageManager] and the two
+ * always agree.
+ *
+ * The decision logic lives in the pure [launcherNameFor] / [aliasWritePlan]
+ * functions above (JVM-tested); this class is only the thin framework seam.
+ */
+@Singleton
+class LauncherNameManager @Inject constructor(
+    @ApplicationContext private val context: Context,
+) {
+    private val packageManager: PackageManager get() = context.packageManager
+
+    // The class portion is namespace-qualified (suffix-free), the package portion
+    // is the applicationId (which carries the .debug / .releasetest suffix). The
+    // manifest's ".CalendarNameAlias" resolves its class against the namespace, so
+    // the real component is <namespace>.CalendarNameAlias registered under the
+    // suffixed applicationId. Do NOT use ComponentName(context, ".CalendarNameAlias")
+    // — its leading-dot form prepends the applicationId to the class too, producing
+    // "<appId>.CalendarNameAlias" and failing on every debug / releaseTest build.
+    private fun component(alias: LauncherAlias): ComponentName {
+        val simpleName = when (alias) {
+            LauncherAlias.DEFAULT -> "DefaultNameAlias"
+            LauncherAlias.CALENDAR -> "CalendarNameAlias"
+        }
+        return ComponentName(context.packageName, "$NAMESPACE.$simpleName")
+    }
+
+    /** The launcher name currently in effect. */
+    fun current(): LauncherName =
+        launcherNameFor(packageManager.getComponentEnabledSetting(component(LauncherAlias.CALENDAR)))
+
+    /** Switch the launcher name to [name] (no-op cost if already active). */
+    fun set(name: LauncherName) {
+        for (change in aliasWritePlan(name)) {
+            val state = if (change.enabled) {
+                PackageManager.COMPONENT_ENABLED_STATE_ENABLED
+            } else {
+                PackageManager.COMPONENT_ENABLED_STATE_DISABLED
+            }
+            packageManager.setComponentEnabledSetting(
+                component(change.alias),
+                state,
+                PackageManager.DONT_KILL_APP,
+            )
+        }
+    }
+
+    private companion object {
+        /**
+         * The app's namespace (R-class package) — NOT `applicationId`, which
+         * carries the build-type suffix. Kept in sync with `namespace` in
+         * `app/build.gradle.kts`.
+         */
+        const val NAMESPACE = "de.jeanlucmakiola.calendula"
+    }
+}

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarDataSource.kt

@@ -18,10 +18,13 @@ import android.util.Log
 import androidx.core.content.ContextCompat
 import dagger.hilt.android.qualifiers.ApplicationContext
 import de.jeanlucmakiola.calendula.domain.Attendee
+import de.jeanlucmakiola.calendula.domain.AttendeeRelationship
+import de.jeanlucmakiola.calendula.domain.AttendeeType
 import de.jeanlucmakiola.calendula.domain.CalendarSource
 import de.jeanlucmakiola.calendula.domain.EventAttendee
 import de.jeanlucmakiola.calendula.domain.EventColorOption
 import de.jeanlucmakiola.calendula.domain.EventDetail
+import de.jeanlucmakiola.calendula.domain.curatedForPicker
 import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.EventStatus
@@ -63,10 +66,12 @@ interface CalendarDataSource {
 
     /**
      * The event-colour palette the calendar's account publishes
-     * (`CalendarContract.Colors`, `TYPE_EVENT`), sorted by key. Empty when the
-     * account exposes no palette (most local calendars, some CalDAV) — the
-     * signal that a custom colour can only be written as a raw `EVENT_COLOR`,
-     * which a synced calendar may drop on its next sync.
+     * (`CalendarContract.Colors`, `TYPE_EVENT`), curated for display — deduped,
+     * thinned to visually distinct swatches when oversized (CalDAV adapters
+     * publish all ~147 CSS3 names, #22) and hue-sorted; see [curatedForPicker].
+     * Empty when the account exposes no palette (most local calendars, some
+     * CalDAV) — the signal that a custom colour can only be written as a raw
+     * `EVENT_COLOR`, which a synced calendar may drop on its next sync.
      */
     fun eventColorPalette(calendarId: Long): List<EventColorOption>
 
@@ -176,6 +181,25 @@ interface CalendarDataSource {
         allDayReminderTimeMinutes: Int,
     )
 
+    /**
+     * Move an event (for recurring events: the whole series, with its modified
+     * and cancelled occurrences) to [targetCalendarId], returning the new
+     * `Events._ID`. `CALENDAR_ID` is sync-adapter-owned and can't be updated in
+     * place, so this is copy+delete: the row is re-inserted on the target (its
+     * `UID_2445` preserved), its exceptions, reminders and editable guests
+     * replayed, the [original]→[updated] field edits applied, then the source
+     * deleted. The source is removed only once the copy fully succeeds; a failure
+     * before that rolls the new event back, leaving the original untouched.
+     * [allDayReminderTimeMinutes]: see [insertEvent].
+     */
+    fun moveEvent(
+        eventId: Long,
+        targetCalendarId: Long,
+        original: EventForm,
+        updated: EventForm,
+        allDayReminderTimeMinutes: Int,
+    ): Long
+
     /**
      * Change a single occurrence of a recurring event by inserting a
      * modified-occurrence exception at [beginMillis] (the occurrence's
@@ -492,7 +516,13 @@ class AndroidCalendarDataSource @Inject constructor(
         return resolver.query(
             uri,
             InstanceProjection.COLUMNS,
-            null, null,
+            // Hide cancelled occurrences: "delete only this event" writes a
+            // cancelled exception for the one instance (#47). A NULL status is a
+            // normal, un-cancelled event, so it must survive the filter — a bare
+            // `!= CANCELED` would drop it (NULL != 2 is NULL, not true).
+            "${CalendarContract.Instances.STATUS} IS NULL OR " +
+                "${CalendarContract.Instances.STATUS} != ${CalendarContract.Events.STATUS_CANCELED}",
+            null,
             CalendarContract.Instances.BEGIN + " ASC",
         )?.use { c -> c.mapAllNotNull { CursorColumnReader(c).toEventInstance() } } ?: emptyList()
     }
@@ -611,7 +641,7 @@ class AndroidCalendarDataSource @Inject constructor(
             c.mapAll { EventColorOption(key = it.getString(0).orEmpty(), argb = it.getInt(1)) }
         }
             ?.filter { it.key.isNotEmpty() }
-            ?.sortedBy { it.key }
+            ?.curatedForPicker()
             ?: emptyList()
     }
 
@@ -876,6 +906,190 @@ class AndroidCalendarDataSource @Inject constructor(
         }
     }
 
+    override fun moveEvent(
+        eventId: Long,
+        targetCalendarId: Long,
+        original: EventForm,
+        updated: EventForm,
+        allDayReminderTimeMinutes: Int,
+    ): Long {
+        // CALENDAR_ID can't be updated in place, so re-create the event on the
+        // target calendar and delete the source. Everything that identifies or
+        // hangs off the event is copied first; the source row is removed only
+        // once the copy (including its exceptions) is complete — a failure
+        // anywhere before that rolls the new event back, so the move is
+        // all-or-nothing and never leaves a half-copied duplicate.
+        val master = queryMoveMaster(eventId)
+            ?: throw WriteFailedException("read event to move id=$eventId")
+        // Keep the source UID so an .ics backup dedups and a sync adapter can
+        // recognise the moved event; mint one only if the source carried none.
+        val uid = master.uid?.takeIf { it.isNotEmpty() } ?: "${UUID.randomUUID()}@calendula"
+        val newEventId = resolver.insert(
+            CalendarContract.Events.CONTENT_URI,
+            buildMovedMasterValues(master.event, targetCalendarId, uid).toContentValues(),
+        )?.let(ContentUris::parseId)
+            ?: throw WriteFailedException("insert moved event into calendar id=$targetCalendarId")
+        try {
+            copyReminderRows(fromEventId = eventId, toEventId = newEventId)
+            insertAttendees(newEventId, editableAttendees(eventId))
+            copyExceptions(fromEventId = eventId, toEventId = newEventId)
+            // Apply the user's field edits exactly as a same-calendar "all
+            // events" save would: the moved master carries the source's values,
+            // so the dirty diff against [original] writes only what changed
+            // (including a time or rrule edit made in the same save).
+            updateEvent(newEventId, original, updated, allDayReminderTimeMinutes)
+        } catch (t: Throwable) {
+            // Undo the partial copy so a failed move leaves nothing behind; the
+            // source is still intact (it's deleted only past this point).
+            runCatching { deleteEvent(newEventId) }
+            throw t
+        }
+        deleteEvent(eventId)
+        return newEventId
+    }
+
+    /** The master row of the event to move, as a verbatim-insert snapshot. */
+    private fun queryMoveMaster(eventId: Long): MoveMaster? = resolver.query(
+        ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, eventId),
+        MoveMasterProjection.COLUMNS,
+        null, null, null,
+    )?.use { c ->
+        if (!c.moveToFirst()) return@use null
+        val r = CursorColumnReader(c)
+        MoveMaster(
+            uid = r.getString(MoveMasterProjection.IDX_UID),
+            event = MasterEventSnapshot(
+                title = r.getString(MoveMasterProjection.IDX_TITLE).orEmpty(),
+                isAllDay = r.getInt(MoveMasterProjection.IDX_ALL_DAY) != 0,
+                dtStartMillis = r.getLong(MoveMasterProjection.IDX_DTSTART),
+                dtEndMillis = r.getLong(MoveMasterProjection.IDX_DTEND)
+                    .takeUnless { r.isNull(MoveMasterProjection.IDX_DTEND) },
+                duration = r.getString(MoveMasterProjection.IDX_DURATION),
+                rrule = r.getString(MoveMasterProjection.IDX_RRULE)?.takeIf { it.isNotBlank() },
+                rdate = r.getString(MoveMasterProjection.IDX_RDATE),
+                exdate = r.getString(MoveMasterProjection.IDX_EXDATE),
+                timezone = r.getString(MoveMasterProjection.IDX_EVENT_TIMEZONE),
+                availability = r.getInt(MoveMasterProjection.IDX_AVAILABILITY),
+                accessLevel = r.getInt(MoveMasterProjection.IDX_ACCESS_LEVEL),
+                status = r.getInt(MoveMasterProjection.IDX_STATUS)
+                    .takeUnless { r.isNull(MoveMasterProjection.IDX_STATUS) },
+                location = r.getString(MoveMasterProjection.IDX_LOCATION),
+                description = r.getString(MoveMasterProjection.IDX_DESCRIPTION),
+            ),
+        )
+    }
+
+    private data class MoveMaster(val uid: String?, val event: MasterEventSnapshot)
+
+    /** Copy every stored reminder row (raw offsets and method) onto [toEventId]. */
+    private fun copyReminderRows(fromEventId: Long, toEventId: Long) = resolver.query(
+        CalendarContract.Reminders.CONTENT_URI,
+        arrayOf(CalendarContract.Reminders.MINUTES, CalendarContract.Reminders.METHOD),
+        CalendarContract.Reminders.EVENT_ID + " = ?",
+        arrayOf(fromEventId.toString()),
+        null,
+    )?.use { c ->
+        while (c.moveToNext()) {
+            val values = ContentValues().apply {
+                put(CalendarContract.Reminders.EVENT_ID, toEventId)
+                put(CalendarContract.Reminders.MINUTES, c.getInt(0))
+                put(CalendarContract.Reminders.METHOD, c.getInt(1))
+            }
+            if (resolver.insert(CalendarContract.Reminders.CONTENT_URI, values) == null) {
+                Log.w(TAG, "Failed to copy a reminder to moved event $toEventId")
+            }
+        }
+    } ?: Unit
+
+    /**
+     * The event's editable guests as [EventAttendee]s — the rows the move
+     * re-creates. Mirrors the edit form's filter: the organizer and resource
+     * rows (backend-owned, not user-editable) and any without an email are
+     * dropped; the response status resets to "invited" on re-insert.
+     */
+    private fun editableAttendees(eventId: Long): List<EventAttendee> = queryAttendees(eventId)
+        .filter {
+            it.relationship != AttendeeRelationship.Organizer && it.type != AttendeeType.Resource
+        }
+        .mapNotNull { a ->
+            a.email?.takeIf { it.isNotBlank() }?.let { email ->
+                EventAttendee(email = email, name = a.name, optional = a.type == AttendeeType.Optional)
+            }
+        }
+
+    /**
+     * Replay every exception of the series [fromEventId] against the moved series
+     * [toEventId]. The copy preserved the recurrence skeleton, so each occurrence
+     * time still resolves: a cancelled occurrence is re-hidden with a cancelled
+     * exception, a modified one is re-inserted with its fields (then its reminders
+     * reconciled and editable guests copied). No-op for a non-recurring event.
+     */
+    private fun copyExceptions(fromEventId: Long, toEventId: Long) {
+        queryExceptionRows(fromEventId).forEach { ex ->
+            if (ex.isCancelled) {
+                val values = ContentValues().apply {
+                    put(CalendarContract.Events.ORIGINAL_INSTANCE_TIME, ex.originalInstanceMillis)
+                    put(CalendarContract.Events.STATUS, CalendarContract.Events.STATUS_CANCELED)
+                }
+                resolver.insert(
+                    ContentUris.withAppendedId(
+                        CalendarContract.Events.CONTENT_EXCEPTION_URI, toEventId,
+                    ),
+                    values,
+                ) ?: throw WriteFailedException("copy cancelled occurrence to event id=$toEventId")
+            } else {
+                val uri = resolver.insert(
+                    ContentUris.withAppendedId(
+                        CalendarContract.Events.CONTENT_EXCEPTION_URI, toEventId,
+                    ),
+                    buildCopiedExceptionValues(ex).toContentValues(),
+                ) ?: throw WriteFailedException("copy modified occurrence to event id=$toEventId")
+                val newExceptionId = ContentUris.parseId(uri)
+                // The provider may clone the parent's reminders onto the new
+                // exception; reconcile to the source exception's exact set so
+                // they neither double nor drop. Same DTSTART → same all-day
+                // encoding, so the stored offsets match directly.
+                reconcileReminders(
+                    newExceptionId,
+                    queryReminders(ex.exceptionEventId).map { it.minutes },
+                )
+                insertAttendees(newExceptionId, editableAttendees(ex.exceptionEventId))
+            }
+        }
+    }
+
+    /** The series' exception rows (modified + cancelled), oldest occurrence first. */
+    private fun queryExceptionRows(seriesEventId: Long): List<ExceptionRowSnapshot> = resolver.query(
+        CalendarContract.Events.CONTENT_URI,
+        ExceptionProjection.COLUMNS,
+        "${CalendarContract.Events.ORIGINAL_ID} = ? AND ${CalendarContract.Events.DELETED} = 0",
+        arrayOf(seriesEventId.toString()),
+        CalendarContract.Events.ORIGINAL_INSTANCE_TIME + " ASC",
+    )?.use { c ->
+        c.mapAll {
+            val r = CursorColumnReader(c)
+            val status = r.getInt(ExceptionProjection.IDX_STATUS)
+                .takeUnless { r.isNull(ExceptionProjection.IDX_STATUS) }
+            ExceptionRowSnapshot(
+                exceptionEventId = r.getLong(ExceptionProjection.IDX_ID),
+                originalInstanceMillis = r.getLong(ExceptionProjection.IDX_ORIGINAL_INSTANCE_TIME),
+                isCancelled = status == CalendarContract.Events.STATUS_CANCELED,
+                status = status,
+                title = r.getString(ExceptionProjection.IDX_TITLE).orEmpty(),
+                isAllDay = r.getInt(ExceptionProjection.IDX_ALL_DAY) != 0,
+                dtStartMillis = r.getLong(ExceptionProjection.IDX_DTSTART),
+                dtEndMillis = r.getLong(ExceptionProjection.IDX_DTEND)
+                    .takeUnless { r.isNull(ExceptionProjection.IDX_DTEND) },
+                duration = r.getString(ExceptionProjection.IDX_DURATION),
+                timezone = r.getString(ExceptionProjection.IDX_EVENT_TIMEZONE),
+                availability = r.getInt(ExceptionProjection.IDX_AVAILABILITY),
+                accessLevel = r.getInt(ExceptionProjection.IDX_ACCESS_LEVEL),
+                location = r.getString(ExceptionProjection.IDX_LOCATION),
+                description = r.getString(ExceptionProjection.IDX_DESCRIPTION),
+            )
+        }
+    } ?: emptyList()
+
     override fun updateOccurrence(
         eventId: Long,
         beginMillis: Long,
@@ -970,6 +1184,8 @@ class AndroidCalendarDataSource @Inject constructor(
             CalendarContract.Events.EVENT_TIMEZONE,
             CalendarContract.Events.DURATION,
             CalendarContract.Events.ALL_DAY,
+            CalendarContract.Events._SYNC_ID,
+            CalendarContract.Events.EXDATE,
         ),
         null, null, null,
     )?.use { c ->
@@ -980,6 +1196,8 @@ class AndroidCalendarDataSource @Inject constructor(
                 timezone = c.getString(2),
                 duration = c.getString(3),
                 allDay = c.getInt(4),
+                syncId = c.getString(5),
+                exdate = c.getString(6),
             )
         } else {
             null
@@ -992,6 +1210,9 @@ class AndroidCalendarDataSource @Inject constructor(
         val timezone: String?,
         val duration: String?,
         val allDay: Int,
+        /** Null on a local calendar (and before a synced event's first push). */
+        val syncId: String? = null,
+        val exdate: String? = null,
     ) {
         /** UNTIL cutoff for ending the series before the occurrence at [beginMillis]. */
         fun truncationCutoff(beginMillis: Long): Long = previousLocalDayEndUtcMillis(
@@ -1182,16 +1403,49 @@ class AndroidCalendarDataSource @Inject constructor(
     }
 
     override fun deleteOccurrence(eventId: Long, beginMillis: Long) {
-        // A cancelled exception row hides exactly this occurrence; the sync
-        // adapter turns it into an EXDATE/cancelled VEVENT upstream.
-        val values = ContentValues().apply {
-            put(CalendarContract.Events.ORIGINAL_INSTANCE_TIME, beginMillis)
-            put(CalendarContract.Events.STATUS, CalendarContract.Events.STATUS_CANCELED)
+        val row = querySeriesRow(eventId)
+        if (row.syncId == null) {
+            // No _sync_id — a local calendar, or a synced event not pushed yet.
+            // A cancelled exception can only attach to its parent through
+            // ORIGINAL_SYNC_ID, so with none the link never forms and the
+            // provider's expansion of the *parent* collapses, taking every other
+            // occurrence with it (#47 on a local calendar). EXDATE needs no link.
+            // Calendula's own contact special-date calendars are local and hold
+            // yearly series, so this path is reached in normal use.
+            val values = buildOccurrenceExdateValues(
+                existingExdate = row.exdate,
+                occurrenceMillis = beginMillis,
+                dtStartMillis = row.dtStartMillis,
+                rrule = row.rrule,
+                duration = row.duration,
+                timezone = row.timezone,
+                allDay = row.allDay,
+            )
+            val updated = resolver.update(
+                ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, eventId),
+                values.toContentValues(), null, null,
+            )
+            if (updated == 0) {
+                throw WriteFailedException("exdate occurrence event id=$eventId begin=$beginMillis")
+            }
+            return
         }
+        // A cancelled exception row hides exactly this occurrence; the sync
+        // adapter turns it into an EXDATE/cancelled VEVENT upstream. It carries
+        // the full time set (DTSTART + DURATION + zone) so the provider derives a
+        // single instance rather than cloning the master's RRULE — the same trap
+        // the edit path documents (Codeberg #16).
+        val values = buildOccurrenceCancelValues(
+            originalInstanceMillis = beginMillis,
+            dtStartMillis = beginMillis,
+            duration = row.duration,
+            timezone = row.timezone,
+            allDay = row.allDay,
+        )
         val uri = ContentUris.withAppendedId(
             CalendarContract.Events.CONTENT_EXCEPTION_URI, eventId,
         )
-        resolver.insert(uri, values)
+        resolver.insert(uri, values.toContentValues())
             ?: throw WriteFailedException("cancel occurrence event id=$eventId begin=$beginMillis")
     }
 

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarRepository.kt

@@ -61,6 +61,20 @@ interface CalendarRepository {
      */
     suspend fun updateEvent(eventId: Long, original: EventForm, updated: EventForm)
 
+    /**
+     * Move an event (recurring: the whole series, with its exceptions) to
+     * [targetCalendarId] and apply the [original]→[updated] field edits; returns
+     * the new event's `Events._ID`. Copy+delete under the hood
+     * (see [CalendarDataSource.moveEvent]) — `CALENDAR_ID` can't be updated in
+     * place.
+     */
+    suspend fun moveEvent(
+        eventId: Long,
+        targetCalendarId: Long,
+        original: EventForm,
+        updated: EventForm,
+    ): Long
+
     /**
      * Change a single occurrence of a recurring event (exception row with the
      * form's values); returns the exception's `Events._ID`.

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/CalendarRepositoryImpl.kt

@@ -157,6 +157,17 @@ class CalendarRepositoryImpl @Inject constructor(
         dataSource.deleteEvent(eventId)
     }
 
+    override suspend fun moveEvent(
+        eventId: Long,
+        targetCalendarId: Long,
+        original: EventForm,
+        updated: EventForm,
+    ): Long = withContext(io) {
+        dataSource.moveEvent(
+            eventId, targetCalendarId, original, updated, allDayReminderTimeMinutes(),
+        )
+    }
+
     override suspend fun updateOccurrence(
         eventId: Long,
         beginMillis: Long,

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/EventDetailMapper.kt

@@ -14,6 +14,7 @@ import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.EventStatus
 import de.jeanlucmakiola.calendula.domain.Reminder
 import de.jeanlucmakiola.calendula.domain.ReminderMethod
+import de.jeanlucmakiola.calendula.domain.ics.parseRfc2445DurationMillis
 import java.time.Instant
 import java.time.ZoneId
 import java.time.ZoneOffset
@@ -36,15 +37,18 @@ internal fun ColumnReader.toEventDetailCore(
     val begin = getLong(EventDetailProjection.IDX_DTSTART)
 
     // Recurring events store DURATION instead of DTEND, so the series row's
-    // DTEND is null. Keep the event (end == begin); callers that opened a
-    // specific occurrence supply the real per-occurrence times from
-    // CalendarContract.Instances. A present-but-backwards DTEND is malformed,
-    // but dropping the row would make the event un-openable — the same trap as
-    // the pre-1970 DTSTART bug above (issue #34): it would surface as the
-    // generic error screen with no way to open the event and fix it. Clamp to a
-    // zero-length event instead (matching SearchMapper's coerceAtLeast).
+    // DTEND is null — derive the length from DURATION (as SearchMapper and
+    // IcsExportMapper do). Callers that opened a specific occurrence overwrite
+    // both times with the per-occurrence values from CalendarContract.Instances;
+    // a caller that names no occurrence (a bare content://.../events/<id> VIEW
+    // intent, issue #48) keeps this row's own times, so the length has to be
+    // right here or the series renders zero-length. A present-but-backwards
+    // DTEND is malformed, but dropping the row would make the event un-openable
+    // — the same trap as the pre-1970 DTSTART bug above (issue #34): it would
+    // surface as the generic error screen with no way to open the event and fix
+    // it. Clamp to a zero-length event instead (matching SearchMapper).
     val end = if (isNull(EventDetailProjection.IDX_DTEND)) {
-        begin
+        begin + parseRfc2445DurationMillis(getString(EventDetailProjection.IDX_DURATION))
     } else {
         getLong(EventDetailProjection.IDX_DTEND).coerceAtLeast(begin)
     }

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/EventWriteMapper.kt

@@ -6,9 +6,11 @@ import de.jeanlucmakiola.calendula.domain.Availability
 import de.jeanlucmakiola.calendula.domain.EventForm
 import kotlinx.datetime.toJavaLocalDate
 import kotlinx.datetime.toJavaLocalDateTime
+import java.time.Duration
 import java.time.Instant
 import java.time.ZoneId
 import java.time.ZoneOffset
+import java.time.LocalDateTime as JavaLocalDateTime
 
 /** Provider-ready DTSTART / DTEND / EVENT_TIMEZONE for an event write. */
 internal data class EventWriteTimes(
@@ -20,7 +22,11 @@ internal data class EventWriteTimes(
 /**
  * All-day events live at UTC midnights with an exclusive DTEND (the
  * CalendarContract convention — a one-day event ends at the next midnight);
- * timed events resolve their wall-clock values in [zone].
+ * timed events resolve their wall-clock values in the form's own
+ * [EventForm.timezone], falling back to [zone] (the device) when it doesn't pin
+ * one. Passing the device zone is therefore still correct for an unpinned form —
+ * but it no longer overrides a pinned event's zone, which is what used to
+ * silently re-anchor a foreign-zone event to the device on any time edit.
  */
 internal fun EventForm.toWriteTimes(zone: ZoneId): EventWriteTimes = if (isAllDay) {
     EventWriteTimes(
@@ -31,22 +37,56 @@ internal fun EventForm.toWriteTimes(zone: ZoneId): EventWriteTimes = if (isAllDa
         timezone = "UTC",
     )
 } else {
+    val writeZone = writeZone(zone)
     EventWriteTimes(
-        dtStartMillis = start.toJavaLocalDateTime().atZone(zone).toInstant().toEpochMilli(),
-        dtEndMillis = end.toJavaLocalDateTime().atZone(zone).toInstant().toEpochMilli(),
-        timezone = zone.id,
+        dtStartMillis = start.toJavaLocalDateTime().atZone(writeZone).toInstant().toEpochMilli(),
+        dtEndMillis = end.toJavaLocalDateTime().atZone(writeZone).toInstant().toEpochMilli(),
+        timezone = writeZone.id,
     )
 }
 
+/**
+ * The zone this form's DTSTART is expressed in: UTC for an all-day event (the
+ * provider's date anchor), otherwise the form's own pinned zone, falling back to
+ * [deviceZone] when it doesn't pin one or pins something the tz database can't
+ * parse.
+ */
+private fun EventForm.writeZone(deviceZone: ZoneId): ZoneId = if (isAllDay) {
+    ZoneOffset.UTC
+} else {
+    timezone?.let { runCatching { ZoneId.of(it) }.getOrNull() } ?: deviceZone
+}
+
+/**
+ * The form's start as a bare wall-clock value — what the user sees on the form,
+ * stripped of any zone. All-day events use their date's midnight rather than
+ * [EventForm.start]'s placeholder time-of-day, which exists only so switching the
+ * event back to timed has something to show.
+ */
+private fun EventForm.anchorLocal(): JavaLocalDateTime = if (isAllDay) {
+    start.date.toJavaLocalDate().atStartOfDay()
+} else {
+    start.toJavaLocalDateTime()
+}
+
 /**
  * RFC 2445 duration for a recurring event's row (the provider requires
  * DURATION instead of DTEND when an RRULE is set): whole days for all-day
  * events, seconds otherwise.
  */
-internal fun EventWriteTimes.toRfc2445Duration(isAllDay: Boolean): String = if (isAllDay) {
-    "P${(dtEndMillis - dtStartMillis) / MILLIS_PER_DAY}D"
+internal fun EventWriteTimes.toRfc2445Duration(isAllDay: Boolean): String =
+    rfc2445Duration(dtEndMillis - dtStartMillis, isAllDay)
+
+/**
+ * RFC 2445 duration for a [spanMillis]-long event: whole days for all-day
+ * events (the provider's convention), seconds otherwise. Shared by the write
+ * paths that need a DURATION but start from a raw millisecond span (the series
+ * copy and exception replay of a calendar move) rather than [EventWriteTimes].
+ */
+internal fun rfc2445Duration(spanMillis: Long, isAllDay: Boolean): String = if (isAllDay) {
+    "P${spanMillis / MILLIS_PER_DAY}D"
 } else {
-    "P${(dtEndMillis - dtStartMillis) / 1_000L}S"
+    "P${spanMillis / 1_000L}S"
 }
 
 /**
@@ -95,10 +135,12 @@ internal fun buildEventInsertValues(
  * Time fields travel together (the provider validates them as a unit):
  * - unchanged times, all-day flag and rrule → no time columns at all;
  * - non-recurring result → DTSTART/DTEND, DURATION and RRULE cleared;
- * - recurring result → the *series* DTSTART moves by the same delta the user
- *   applied to the displayed occurrence ([seriesDtStartMillis] is the row's
- *   current DTSTART), DURATION replaces DTEND, RRULE is written. This keeps
- *   past occurrences intact when someone edits a later occurrence's time.
+ * - recurring result → the *series* DTSTART moves by the same **wall-clock**
+ *   shift the user applied to the displayed occurrence and is re-resolved in the
+ *   event's zone ([seriesDtStartMillis] is the row's current DTSTART), DURATION
+ *   replaces DTEND, RRULE is written. This keeps past occurrences intact when
+ *   someone edits a later occurrence's time, and keeps the anchor's time-of-day
+ *   stable across a DST boundary or a zone change between the two.
  */
 internal fun buildEventUpdateValues(
     original: EventForm,
@@ -125,10 +167,14 @@ internal fun buildEventUpdateValues(
         putAll(eventColorColumns(updated.colorKey, updated.color))
     }
 
+    // A zone change counts as a time change even when the wall-clock is
+    // untouched: the same 09:00 in another zone is a different instant, so
+    // DTSTART has to move with it.
     val timesChanged = updated.start != original.start ||
         updated.end != original.end ||
         updated.isAllDay != original.isAllDay ||
-        updated.rrule != original.rrule
+        updated.rrule != original.rrule ||
+        updated.timezone != original.timezone
     if (!timesChanged) return@buildMap
 
     val newTimes = updated.toWriteTimes(zone)
@@ -140,8 +186,23 @@ internal fun buildEventUpdateValues(
         put(CalendarContract.Events.RRULE, null)
         put(CalendarContract.Events.DURATION, null)
     } else {
-        val startDelta = newTimes.dtStartMillis - original.toWriteTimes(zone).dtStartMillis
-        put(CalendarContract.Events.DTSTART, seriesDtStartMillis + startDelta)
+        // Move the series anchor by the *wall-clock* shift the user applied to the
+        // displayed occurrence, then re-resolve it in the event's (possibly new)
+        // zone — never by a millisecond delta. An instant delta silently bakes in
+        // the offset that happened to apply on the edited occurrence's date, which
+        // is a different offset from the series anchor's whenever a DST boundary
+        // sits between them, or whenever the zone itself changed. Working in wall
+        // clock keeps "09:00" meaning 09:00 at both ends.
+        val seriesLocal = Instant.ofEpochMilli(seriesDtStartMillis)
+            .atZone(original.writeZone(zone)).toLocalDateTime()
+        val wallClockShift = Duration.between(original.anchorLocal(), updated.anchorLocal())
+        val shifted = seriesLocal.plus(wallClockShift)
+        // An all-day series anchor must sit on a UTC midnight. A pure day move
+        // already lands there (both ends are midnights), but *switching* a
+        // recurring event to all-day shifts by a time-of-day too, so snap.
+        val newSeriesLocal = if (updated.isAllDay) shifted.toLocalDate().atStartOfDay() else shifted
+        val newSeriesStart = newSeriesLocal.atZone(updated.writeZone(zone))
+        put(CalendarContract.Events.DTSTART, newSeriesStart.toInstant().toEpochMilli())
         put(CalendarContract.Events.DTEND, null)
         put(CalendarContract.Events.RRULE, updated.rrule)
         put(CalendarContract.Events.DURATION, newTimes.toRfc2445Duration(updated.isAllDay))
@@ -182,6 +243,215 @@ internal fun buildOccurrenceExceptionValues(
     putAll(eventColorColumns(form.colorKey, form.color))
 }
 
+/**
+ * Raw provider snapshot of a master/one-off Events row, enough to re-insert it
+ * verbatim on another calendar (a calendar move is copy+delete — `CALENDAR_ID`
+ * is sync-adapter-owned and can't be updated in place). Recurring rows carry
+ * [rrule]/[duration] (and any [rdate]/[exdate]) with a null [dtEndMillis];
+ * one-off rows carry [dtEndMillis]. Colour is deliberately absent: a raw
+ * `EVENT_COLOR` or account-scoped `EVENT_COLOR_KEY` may be invalid on the target
+ * account, so the moved copy inherits the target calendar's colour instead.
+ */
+internal data class MasterEventSnapshot(
+    val title: String,
+    val isAllDay: Boolean,
+    val dtStartMillis: Long,
+    val dtEndMillis: Long?,
+    val duration: String?,
+    val rrule: String?,
+    val rdate: String?,
+    val exdate: String?,
+    val timezone: String?,
+    val availability: Int,
+    val accessLevel: Int,
+    val status: Int?,
+    val location: String?,
+    val description: String?,
+)
+
+/**
+ * Column values re-creating [snapshot] as a fresh Events row on
+ * [targetCalendarId], keeping its [uid] so `.ics` backup dedup and sync identity
+ * survive the move. Preserves the recurrence skeleton (DTSTART/RRULE/DURATION,
+ * RDATE/EXDATE) so the series' generated instances — and therefore the
+ * ORIGINAL_INSTANCE_TIME of every copied exception — line up unchanged. The
+ * caller layers the user's field edits on top with a normal series update.
+ */
+internal fun buildMovedMasterValues(
+    snapshot: MasterEventSnapshot,
+    targetCalendarId: Long,
+    uid: String,
+): Map<String, Any?> = buildMap {
+    put(CalendarContract.Events.CALENDAR_ID, targetCalendarId)
+    put(CalendarContract.Events.UID_2445, uid)
+    put(CalendarContract.Events.TITLE, snapshot.title)
+    put(CalendarContract.Events.ALL_DAY, if (snapshot.isAllDay) 1 else 0)
+    put(CalendarContract.Events.DTSTART, snapshot.dtStartMillis)
+    put(CalendarContract.Events.EVENT_TIMEZONE, snapshot.timezone ?: "UTC")
+    if (snapshot.rrule != null) {
+        put(CalendarContract.Events.RRULE, snapshot.rrule)
+        snapshot.rdate?.takeIf { it.isNotBlank() }?.let { put(CalendarContract.Events.RDATE, it) }
+        snapshot.exdate?.takeIf { it.isNotBlank() }?.let { put(CalendarContract.Events.EXDATE, it) }
+        put(CalendarContract.Events.DURATION, snapshot.movedDuration())
+    } else {
+        snapshot.dtEndMillis?.let { put(CalendarContract.Events.DTEND, it) }
+    }
+    put(CalendarContract.Events.AVAILABILITY, snapshot.availability)
+    put(CalendarContract.Events.ACCESS_LEVEL, snapshot.accessLevel)
+    snapshot.status?.let { put(CalendarContract.Events.STATUS, it) }
+    put(CalendarContract.Events.EVENT_LOCATION, snapshot.location?.ifEmpty { null })
+    put(CalendarContract.Events.DESCRIPTION, snapshot.description?.ifEmpty { null })
+}
+
+/** The recurring copy's DURATION: its own if present, else derived from DTEND. */
+private fun MasterEventSnapshot.movedDuration(): String = duration?.takeIf { it.isNotBlank() }
+    ?: rfc2445Duration((dtEndMillis ?: dtStartMillis) - dtStartMillis, isAllDay)
+
+/**
+ * Raw provider snapshot of one exception row of a recurring series (a modified
+ * or cancelled occurrence, `ORIGINAL_ID` = the series). [originalInstanceMillis]
+ * ties it to the occurrence it overrides; a [isCancelled] row only needs that.
+ */
+internal data class ExceptionRowSnapshot(
+    val exceptionEventId: Long,
+    val originalInstanceMillis: Long,
+    val isCancelled: Boolean,
+    val status: Int?,
+    val title: String,
+    val isAllDay: Boolean,
+    val dtStartMillis: Long,
+    val dtEndMillis: Long?,
+    val duration: String?,
+    val timezone: String?,
+    val availability: Int,
+    val accessLevel: Int,
+    val location: String?,
+    val description: String?,
+)
+
+/**
+ * Column values replaying a *modified* occurrence [snapshot] against the moved
+ * series via `CONTENT_EXCEPTION_URI`. Like [buildOccurrenceExceptionValues] the
+ * length travels as DURATION (the provider rejects DTEND on an exception). A
+ * cancelled occurrence is written separately (ORIGINAL_INSTANCE_TIME +
+ * STATUS_CANCELED) — this builder is only for the modified case.
+ */
+internal fun buildCopiedExceptionValues(snapshot: ExceptionRowSnapshot): Map<String, Any?> =
+    buildMap {
+        put(CalendarContract.Events.ORIGINAL_INSTANCE_TIME, snapshot.originalInstanceMillis)
+        put(CalendarContract.Events.TITLE, snapshot.title)
+        put(CalendarContract.Events.ALL_DAY, if (snapshot.isAllDay) 1 else 0)
+        put(CalendarContract.Events.DTSTART, snapshot.dtStartMillis)
+        put(
+            CalendarContract.Events.DURATION,
+            snapshot.duration?.takeIf { it.isNotBlank() }
+                ?: rfc2445Duration(
+                    (snapshot.dtEndMillis ?: snapshot.dtStartMillis) - snapshot.dtStartMillis,
+                    snapshot.isAllDay,
+                ),
+        )
+        put(CalendarContract.Events.EVENT_TIMEZONE, snapshot.timezone ?: "UTC")
+        put(CalendarContract.Events.AVAILABILITY, snapshot.availability)
+        put(CalendarContract.Events.ACCESS_LEVEL, snapshot.accessLevel)
+        put(CalendarContract.Events.EVENT_LOCATION, snapshot.location?.ifEmpty { null })
+        put(CalendarContract.Events.DESCRIPTION, snapshot.description?.ifEmpty { null })
+        snapshot.status?.let { put(CalendarContract.Events.STATUS, it) }
+    }
+
+/**
+ * Column values for a *cancelled*-occurrence exception row ("delete only this
+ * event"): inserting them at `Events.CONTENT_EXCEPTION_URI/<id>` makes the
+ * provider clone the series row and cancel exactly this one instance.
+ *
+ * As with [buildOccurrenceExceptionValues], the occurrence must be anchored with
+ * DTSTART + DURATION so the provider derives a single instance and clears the
+ * inherited RRULE. A STATUS-only cancel skips that: the clone keeps the RRULE, so
+ * the *whole series* is cancelled and every other occurrence disappears
+ * (Codeberg #47). The occurrence's length/zone come straight from the series row
+ * — cancelling never changes them.
+ */
+internal fun buildOccurrenceCancelValues(
+    originalInstanceMillis: Long,
+    dtStartMillis: Long,
+    duration: String?,
+    timezone: String?,
+    allDay: Int,
+): Map<String, Any?> = buildMap {
+    put(CalendarContract.Events.ORIGINAL_INSTANCE_TIME, originalInstanceMillis)
+    put(CalendarContract.Events.DTSTART, dtStartMillis)
+    put(CalendarContract.Events.DURATION, duration)
+    put(CalendarContract.Events.EVENT_TIMEZONE, timezone)
+    put(CalendarContract.Events.ALL_DAY, allDay)
+    put(CalendarContract.Events.STATUS, CalendarContract.Events.STATUS_CANCELED)
+}
+
+/**
+ * The master-row columns that drop the occurrence at [occurrenceMillis] from a
+ * series by adding it to `EXDATE` — the path for events that have **no
+ * `_sync_id`** (a local calendar, or a synced event not yet pushed).
+ *
+ * A cancelled exception row (see [buildOccurrenceCancelValues]) only attaches to
+ * its parent through `ORIGINAL_SYNC_ID`. Without a `_sync_id` the link never
+ * forms, and the provider's expansion of the *parent* collapses — every other
+ * occurrence disappears (Codeberg #47, reproduced on a local calendar). EXDATE
+ * needs no link, and is the canonical iCalendar way to drop an occurrence, so a
+ * sync adapter carries it upstream unchanged if the calendar later syncs.
+ *
+ * The whole time/recurrence set is rewritten alongside it on purpose. The
+ * provider does **not** treat an EXDATE-only update as a recurrence change: it
+ * leaves the expanded `Instances` rows untouched, so the occurrence stays visible
+ * (and, symmetrically, un-excluding one leaves it hidden). Writing DTSTART with
+ * it forces the re-expansion — but DTSTART *alone* makes the provider recompute
+ * `lastDate` as if the event were a single instance, collapsing the series to its
+ * first occurrence. Passing DTSTART + DURATION + RRULE + zone together is what
+ * re-expands it correctly. All observed on a Pixel; see the #47 notes.
+ *
+ * EXDATE is a comma-separated list, so an existing one is appended to (a repeat
+ * of the same occurrence is folded away). All-day series take the `VALUE=DATE`
+ * form (`yyyyMMdd`), timed ones the UTC date-time form (`yyyyMMddTHHmmssZ`).
+ */
+internal fun buildOccurrenceExdateValues(
+    existingExdate: String?,
+    occurrenceMillis: Long,
+    dtStartMillis: Long,
+    rrule: String?,
+    duration: String?,
+    timezone: String?,
+    allDay: Int,
+): Map<String, Any?> {
+    val stamp = formatExdateStamp(occurrenceMillis, isAllDay = allDay != 0)
+    val existing = existingExdate?.split(',')
+        ?.map { it.trim() }
+        ?.filter { it.isNotEmpty() }
+        .orEmpty()
+    val merged = (existing + stamp).distinct().joinToString(",")
+    return mapOf(
+        CalendarContract.Events.EXDATE to merged,
+        CalendarContract.Events.DTSTART to dtStartMillis,
+        CalendarContract.Events.RRULE to rrule,
+        CalendarContract.Events.DURATION to duration,
+        CalendarContract.Events.EVENT_TIMEZONE to timezone,
+        CalendarContract.Events.ALL_DAY to allDay,
+    )
+}
+
+/**
+ * One EXDATE entry for the occurrence starting at [occurrenceMillis]. Both forms
+ * are UTC: the provider stores an all-day DTSTART at UTC midnight, so its date
+ * reads off the UTC calendar day.
+ */
+private fun formatExdateStamp(occurrenceMillis: Long, isAllDay: Boolean): String {
+    val utc = Instant.ofEpochMilli(occurrenceMillis).atZone(ZoneOffset.UTC)
+    return if (isAllDay) {
+        "%04d%02d%02d".format(utc.year, utc.monthValue, utc.dayOfMonth)
+    } else {
+        "%04d%02d%02dT%02d%02d%02dZ".format(
+            utc.year, utc.monthValue, utc.dayOfMonth,
+            utc.hour, utc.minute, utc.second,
+        )
+    }
+}
+
 /**
  * The `EVENT_COLOR` / `EVENT_COLOR_KEY` columns for a colour selection. A
  * [colorKey] writes the key alone (the provider derives `EVENT_COLOR` from the

app/src/main/java/de/jeanlucmakiola/calendula/data/calendar/Projections.kt

@@ -84,6 +84,9 @@ internal object EventDetailProjection {
         CalendarContract.Events.EVENT_TIMEZONE,
         CalendarContract.Events.SELF_ATTENDEE_STATUS,
         CalendarContract.Events.EVENT_COLOR_KEY,
+        // Recurring rows carry DURATION instead of DTEND; the detail screen
+        // needs it to render a series opened without a named occurrence.
+        CalendarContract.Events.DURATION,
     )
 
     const val IDX_EVENT_ID = 0
@@ -104,6 +107,7 @@ internal object EventDetailProjection {
     const val IDX_EVENT_TIMEZONE = 15
     const val IDX_SELF_ATTENDEE_STATUS = 16
     const val IDX_EVENT_COLOR_KEY = 17
+    const val IDX_DURATION = 18
 }
 
 /**
@@ -186,6 +190,86 @@ internal object SearchProjection {
     const val IDX_RDATE = 11
 }
 
+/**
+ * The master/one-off Events row of an event about to be moved to another
+ * calendar, read for a verbatim re-insert (see [MasterEventSnapshot]). Carries
+ * the full recurrence skeleton (RRULE/DURATION, RDATE/EXDATE) so the moved copy
+ * generates the same instances, and `UID_2445` so identity survives the move.
+ */
+internal object MoveMasterProjection {
+    val COLUMNS: Array<String> = arrayOf(
+        CalendarContract.Events.UID_2445,
+        CalendarContract.Events.TITLE,
+        CalendarContract.Events.DTSTART,
+        CalendarContract.Events.DTEND,
+        CalendarContract.Events.DURATION,
+        CalendarContract.Events.RRULE,
+        CalendarContract.Events.RDATE,
+        CalendarContract.Events.EXDATE,
+        CalendarContract.Events.EVENT_TIMEZONE,
+        CalendarContract.Events.ALL_DAY,
+        CalendarContract.Events.AVAILABILITY,
+        CalendarContract.Events.ACCESS_LEVEL,
+        CalendarContract.Events.STATUS,
+        CalendarContract.Events.EVENT_LOCATION,
+        CalendarContract.Events.DESCRIPTION,
+    )
+
+    const val IDX_UID = 0
+    const val IDX_TITLE = 1
+    const val IDX_DTSTART = 2
+    const val IDX_DTEND = 3
+    const val IDX_DURATION = 4
+    const val IDX_RRULE = 5
+    const val IDX_RDATE = 6
+    const val IDX_EXDATE = 7
+    const val IDX_EVENT_TIMEZONE = 8
+    const val IDX_ALL_DAY = 9
+    const val IDX_AVAILABILITY = 10
+    const val IDX_ACCESS_LEVEL = 11
+    const val IDX_STATUS = 12
+    const val IDX_LOCATION = 13
+    const val IDX_DESCRIPTION = 14
+}
+
+/**
+ * The exception rows of a recurring series (`ORIGINAL_ID` = the series), read to
+ * replay them against a moved copy (see [ExceptionRowSnapshot]). Both modified
+ * occurrences and cancellations (`STATUS_CANCELED`) are read; the query filters
+ * `DELETED = 0` so provider tombstones aren't replayed.
+ */
+internal object ExceptionProjection {
+    val COLUMNS: Array<String> = arrayOf(
+        CalendarContract.Events._ID,
+        CalendarContract.Events.ORIGINAL_INSTANCE_TIME,
+        CalendarContract.Events.STATUS,
+        CalendarContract.Events.TITLE,
+        CalendarContract.Events.ALL_DAY,
+        CalendarContract.Events.DTSTART,
+        CalendarContract.Events.DTEND,
+        CalendarContract.Events.DURATION,
+        CalendarContract.Events.EVENT_TIMEZONE,
+        CalendarContract.Events.AVAILABILITY,
+        CalendarContract.Events.ACCESS_LEVEL,
+        CalendarContract.Events.EVENT_LOCATION,
+        CalendarContract.Events.DESCRIPTION,
+    )
+
+    const val IDX_ID = 0
+    const val IDX_ORIGINAL_INSTANCE_TIME = 1
+    const val IDX_STATUS = 2
+    const val IDX_TITLE = 3
+    const val IDX_ALL_DAY = 4
+    const val IDX_DTSTART = 5
+    const val IDX_DTEND = 6
+    const val IDX_DURATION = 7
+    const val IDX_EVENT_TIMEZONE = 8
+    const val IDX_AVAILABILITY = 9
+    const val IDX_ACCESS_LEVEL = 10
+    const val IDX_LOCATION = 11
+    const val IDX_DESCRIPTION = 12
+}
+
 internal object AttendeeProjection {
     val COLUMNS: Array<String> = arrayOf(
         CalendarContract.Attendees.ATTENDEE_NAME,

app/src/main/java/de/jeanlucmakiola/calendula/data/prefs/SettingsPrefs.kt

@@ -21,9 +21,15 @@ import de.jeanlucmakiola.calendula.ui.agenda.storageValue
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
 import de.jeanlucmakiola.calendula.ui.common.QuickSwitchConfig
+import de.jeanlucmakiola.calendula.ui.month.MonthViewStyle
 import de.jeanlucmakiola.calendula.ui.theme.FONT_SYSTEM_TOKEN
+import java.time.ZoneId
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
 import kotlinx.datetime.DayOfWeek
 import java.time.temporal.WeekFields
 import java.util.Locale
@@ -81,6 +87,24 @@ fun WeekStartPref.resolveFirstDay(locale: Locale): DayOfWeek = when (this) {
     WeekStartPref.Auto -> DayOfWeek(WeekFields.of(locale).firstDayOfWeek.value)
 }
 
+/**
+ * The resolved first day of the week as a hot [StateFlow] — the one shape every
+ * screen that orders or lays out weekdays should use (the month grid, the agenda
+ * "this week" range, the recurrence weekday toggles). Sharing it keeps the
+ * initial-frame value identical everywhere; hand-rolled copies had drifted onto
+ * different `initialValue`s, so two surfaces could disagree for a frame.
+ */
+fun SettingsPrefs.firstDayOfWeek(scope: CoroutineScope): StateFlow<DayOfWeek> =
+    weekStart
+        .map { it.resolveFirstDay(Locale.getDefault()) }
+        .stateIn(
+            scope = scope,
+            started = SharingStarted.WhileSubscribed(5_000L),
+            // Seed with the locale convention rather than a hardcoded weekday, so
+            // the first frame is already right for everyone still on Auto.
+            initialValue = WeekStartPref.Auto.resolveFirstDay(Locale.getDefault()),
+        )
+
 /**
  * Display settings (M4) persisted app-side: theme override, Material You
  * dynamic colour, and week start. Language is handled separately through
@@ -114,6 +138,21 @@ class SettingsPrefs @Inject constructor(
         store.edit { it[DYNAMIC_COLOR_KEY] = enabled }
     }
 
+    /**
+     * Whether raw provider colours are softened toward theme-fitting pastels
+     * before display (issue #36). Defaults to ON — the historical look, which
+     * caps harsh sync colours and pins brightness so entries read on both
+     * themes. Turning it off paints the calendar/event colour exactly as the
+     * sync source (DAVx5/CalDAV) publishes it.
+     */
+    val softenCalendarColors: Flow<Boolean> = store.data.map { prefs ->
+        prefs[SOFTEN_COLORS_KEY] ?: true
+    }
+
+    suspend fun setSoftenCalendarColors(enabled: Boolean) {
+        store.edit { it[SOFTEN_COLORS_KEY] = enabled }
+    }
+
     /**
      * Custom-font tokens per Material typeface role (issue #19). Stored as opaque
      * strings — "system", "custom", or a bundled font's token — resolved to a
@@ -218,6 +257,33 @@ class SettingsPrefs @Inject constructor(
         store.edit { it[SHOW_WEEK_NUMBERS_KEY] = enabled }
     }
 
+    /**
+     * How the Month view lays itself out (#38, #53). Defaults to [MonthViewStyle.Paged]
+     * — the historical behaviour, so existing installs see no change until they opt in.
+     */
+    val monthViewStyle: Flow<MonthViewStyle> = store.data.map { prefs ->
+        prefs[MONTH_VIEW_STYLE_KEY].toEnum(MonthViewStyle.Paged)
+    }
+
+    suspend fun setMonthViewStyle(style: MonthViewStyle) {
+        store.edit { it[MONTH_VIEW_STYLE_KEY] = style.name }
+    }
+
+    /**
+     * Where the jump-to-today control lives (issue #60). Default OFF — the
+     * historical layout, where it's an extended FAB that fades in above the "+"
+     * only while the view is off today. Turning it ON moves it to a persistent
+     * icon button in each calendar view's top bar (always shown, on today or
+     * not) and drops the FAB pill.
+     */
+    val todayButtonInToolbar: Flow<Boolean> = store.data.map { prefs ->
+        prefs[TODAY_BUTTON_IN_TOOLBAR_KEY] ?: false
+    }
+
+    suspend fun setTodayButtonInToolbar(enabled: Boolean) {
+        store.edit { it[TODAY_BUTTON_IN_TOOLBAR_KEY] = enabled }
+    }
+
     /**
      * How far ahead the in-app Agenda screen shows events (v2.11). Defaults to
      * [AgendaRange.Month] — a month of upcoming events. Independent of the
@@ -252,6 +318,20 @@ class SettingsPrefs @Inject constructor(
         store.edit { it[AGENDA_SHOW_RANGE_BAR_KEY] = enabled }
     }
 
+    /**
+     * Whether the agenda (both the in-app screen and the home-screen widget)
+     * always anchors today at the top with a "nothing left today" placeholder,
+     * even once today has no remaining events (issue #35). Default ON — makes
+     * today's events easy to tell apart from a future day's at a glance.
+     */
+    val agendaShowToday: Flow<Boolean> = store.data.map { prefs ->
+        prefs[AGENDA_SHOW_TODAY_KEY] ?: true
+    }
+
+    suspend fun setAgendaShowToday(enabled: Boolean) {
+        store.edit { it[AGENDA_SHOW_TODAY_KEY] = enabled }
+    }
+
     /**
      * The calendar view the app opens on (M1). Defaults to [CalendarView.Week] —
      * the historical hard-coded startup view — so existing users see no change
@@ -325,6 +405,26 @@ class SettingsPrefs @Inject constructor(
         }
     }
 
+    /**
+     * Zones the user picked recently, most recent first — the timezone picker's
+     * default list, since scrolling ~600 zones to re-find the two you actually
+     * use is the whole problem. Stored comma-joined (IANA ids never contain a
+     * comma); unparseable ids are dropped on read, so a zone the tz database
+     * later retires can't wedge the list.
+     */
+    val recentTimeZones: Flow<List<String>> = store.data.map { prefs ->
+        parseRecentTimeZones(prefs[RECENT_TIMEZONES_KEY])
+    }
+
+    suspend fun addRecentTimeZone(zoneId: String) {
+        store.edit { prefs ->
+            val updated = (listOf(zoneId) + parseRecentTimeZones(prefs[RECENT_TIMEZONES_KEY]))
+                .distinct()
+                .take(MAX_RECENT_TIME_ZONES)
+            prefs[RECENT_TIMEZONES_KEY] = updated.joinToString(",")
+        }
+    }
+
     /**
      * Whether opening the new-event form focuses the title field and raises the
      * keyboard straight away (issue #10). Default ON — a new event almost always
@@ -621,6 +721,13 @@ class SettingsPrefs @Inject constructor(
     private fun titleTemplateKey(type: SpecialDateType) =
         stringPreferencesKey("special_dates_title_${type.name}")
 
+    private fun parseRecentTimeZones(stored: String?): List<String> =
+        stored?.split(',').orEmpty()
+            .map { it.trim() }
+            .filter { it.isNotEmpty() && runCatching { ZoneId.of(it) }.isSuccess }
+            .distinct()
+            .take(MAX_RECENT_TIME_ZONES)
+
     private fun parseFormFields(stored: String?): Set<EventFormField> = when (stored) {
         null -> DEFAULT_FORM_FIELDS
         else -> stored.split(',')
@@ -665,6 +772,7 @@ class SettingsPrefs @Inject constructor(
     companion object {
         internal val THEME_MODE_KEY = stringPreferencesKey("theme_mode")
         internal val DYNAMIC_COLOR_KEY = booleanPreferencesKey("dynamic_color")
+        internal val SOFTEN_COLORS_KEY = booleanPreferencesKey("soften_calendar_colors")
         internal val BRAND_FONT_KEY = stringPreferencesKey("brand_font")
         internal val PLAIN_FONT_KEY = stringPreferencesKey("plain_font")
         internal val BRAND_FONT_STAMP_KEY = intPreferencesKey("brand_font_stamp")
@@ -673,11 +781,15 @@ class SettingsPrefs @Inject constructor(
         internal val AGENDA_SCREEN_RANGE_KEY = stringPreferencesKey("agenda_screen_range")
         internal val AGENDA_WIDGET_RANGE_KEY = stringPreferencesKey("agenda_widget_range")
         internal val AGENDA_SHOW_RANGE_BAR_KEY = booleanPreferencesKey("agenda_show_range_bar")
+        internal val AGENDA_SHOW_TODAY_KEY =
+            booleanPreferencesKey("agenda_show_today")
         internal val TIME_FORMAT_KEY = stringPreferencesKey("time_format")
         internal val SHOW_HOUR_LINES_KEY = booleanPreferencesKey("show_hour_lines")
         internal val PAST_EVENT_DISPLAY_KEY = stringPreferencesKey("agenda_past_event_display")
         internal val DIM_COMPLETED_EVENTS_KEY = booleanPreferencesKey("dim_completed_events")
         internal val SHOW_WEEK_NUMBERS_KEY = booleanPreferencesKey("show_week_numbers")
+        internal val MONTH_VIEW_STYLE_KEY = stringPreferencesKey("month_view_style")
+        internal val TODAY_BUTTON_IN_TOOLBAR_KEY = booleanPreferencesKey("today_button_in_toolbar")
         internal val DEFAULT_VIEW_KEY = stringPreferencesKey("default_view")
         internal val QUICK_SWITCH_VIEWS_KEY = stringPreferencesKey("quick_switch_views")
         internal val DRAWER_VIEW_ORDER_KEY = stringPreferencesKey("drawer_view_order")
@@ -704,6 +816,10 @@ class SettingsPrefs @Inject constructor(
             stringPreferencesKey("per_calendar_allday_reminder_override")
         internal val DEFAULT_FORM_FIELDS =
             setOf(EventFormField.Location, EventFormField.Description)
+        internal val RECENT_TIMEZONES_KEY = stringPreferencesKey("recent_time_zones")
+
+        /** Enough to cover the zones a user actually recurs to, without a wall of rows. */
+        internal const val MAX_RECENT_TIME_ZONES = 5
         internal val AUTO_BACKUP_ENABLED_KEY = booleanPreferencesKey("auto_backup_enabled")
         internal val AUTO_BACKUP_INTERVAL_KEY = longPreferencesKey("auto_backup_interval_minutes")
         internal val AUTO_BACKUP_FOLDER_KEY = stringPreferencesKey("auto_backup_folder_uri")

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderNotifier.kt

@@ -17,7 +17,11 @@ import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
 import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
 import de.jeanlucmakiola.calendula.data.prefs.is24Hour
+import de.jeanlucmakiola.calendula.data.prefs.resolveFirstDay
 import kotlinx.coroutines.flow.first
+import kotlinx.datetime.isoDayNumber
+import java.time.DayOfWeek
+import java.time.Instant
 import java.time.ZoneId
 import java.util.Locale
 import javax.inject.Inject
@@ -55,13 +59,22 @@ class ReminderNotifier @Inject constructor(
         val title = alert.title.ifBlank { context.getString(R.string.event_untitled) }
         val is24Hour = settingsPrefs.timeFormat.first()
             .is24Hour(android.text.format.DateFormat.is24HourFormat(context))
+        val zone = ZoneId.systemDefault()
+        val locale = Locale.getDefault()
+        // resolveFirstDay yields a kotlinx.datetime day; bridge it to java.time by
+        // its shared ISO number (1..7) for the date math in reminderTimeText.
+        val firstDayOfWeek = DayOfWeek.of(settingsPrefs.weekStart.first().resolveFirstDay(locale).isoDayNumber)
         val time = reminderTimeText(
             beginMillis = alert.beginMillis,
             endMillis = alert.endMillis,
             isAllDay = alert.isAllDay,
-            zone = ZoneId.systemDefault(),
-            locale = Locale.getDefault(),
+            zone = zone,
+            locale = locale,
             is24Hour = is24Hour,
+            today = Instant.now().atZone(zone).toLocalDate(),
+            firstDayOfWeek = firstDayOfWeek,
+            tomorrowLabel = context.getString(R.string.reminder_day_tomorrow),
+            yesterdayLabel = context.getString(R.string.reminder_day_yesterday),
         )
         val text = listOfNotNull(time, alert.location).joinToString(" · ")
         val notification = NotificationCompat.Builder(context, CHANNEL_ID)

app/src/main/java/de/jeanlucmakiola/calendula/data/reminders/ReminderTimeText.kt

@@ -1,23 +1,37 @@
 package de.jeanlucmakiola.calendula.data.reminders
 
 import de.jeanlucmakiola.calendula.ui.common.timeOfDayFormatter
+import java.time.DayOfWeek
 import java.time.Instant
+import java.time.LocalDate
 import java.time.ZoneId
 import java.time.ZoneOffset
 import java.time.format.DateTimeFormatter
 import java.time.format.FormatStyle
+import java.time.format.TextStyle
+import java.time.temporal.ChronoUnit
 import java.util.Locale
 
 /**
  * The one line of time context in a reminder notification. Pure so it can be
- * JVM-tested:
+ * JVM-tested.
  *
- * - timed, same day:      "09:30 – 10:00"
- * - timed, crossing days: "11 Jun, 23:30 – 12 Jun, 00:30" (medium date + short time)
+ * Timed events that fall on a day other than [today] are prefixed with that
+ * day, so a reminder fired ahead of time no longer reads as if the event were
+ * today (issue #46). The prefix prefers natural language and stays short:
+ *
+ * - today:                "09:30 – 10:00"                 (no prefix)
+ * - tomorrow / yesterday: "Tomorrow, 09:30 – 10:00"       ([tomorrowLabel] / [yesterdayLabel])
+ * - elsewhere this week:  "Thu, 09:30 – 10:00"            (localized short weekday)
+ * - further out:          "16 Jul, 09:30 – 10:00"         (medium date — a weekday
+ *                                                          alone would be ambiguous)
+ * - timed, crossing days: "11 Jun, 23:30 – 12 Jun, 00:30" (medium date + short time,
+ *                                                          already unambiguous)
  * - all-day, one day:     "11 Jun 2026"
  * - all-day, multi-day:   "11 Jun 2026 – 12 Jun 2026"
  *
- * All-day instances store UTC midnights with an exclusive end, so they are
+ * All-day instances already carry an explicit date, so they never gain a
+ * relative prefix. They store UTC midnights with an exclusive end, so they are
  * read in UTC and the end day is the last *covered* day.
  */
 fun reminderTimeText(
@@ -27,6 +41,10 @@ fun reminderTimeText(
     zone: ZoneId,
     locale: Locale,
     is24Hour: Boolean,
+    today: LocalDate,
+    firstDayOfWeek: DayOfWeek,
+    tomorrowLabel: String,
+    yesterdayLabel: String,
 ): String {
     if (isAllDay) {
         val dateFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale)
@@ -43,18 +61,70 @@ fun reminderTimeText(
     }
 
     val timeFormat = timeOfDayFormatter(is24Hour, locale)
+    val dateFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale)
     val begin = Instant.ofEpochMilli(beginMillis).atZone(zone)
     val end = Instant.ofEpochMilli(endMillis).atZone(zone)
     return if (begin.toLocalDate() == end.toLocalDate()) {
-        timeFormat.format(begin) + RANGE + timeFormat.format(end)
+        val range = timeFormat.format(begin) + RANGE + timeFormat.format(end)
+        val prefix = relativeDayPrefix(
+            day = begin.toLocalDate(),
+            today = today,
+            firstDayOfWeek = firstDayOfWeek,
+            locale = locale,
+            dateFormat = dateFormat,
+            tomorrowLabel = tomorrowLabel,
+            yesterdayLabel = yesterdayLabel,
+        )
+        if (prefix == null) range else "$prefix, $range"
     } else {
         // Cross-day: medium date + the chosen short time, joined per side. Built
         // from the two formatters (not ofLocalizedDateTime) so the 12/24h choice
-        // applies to the time portion too.
-        val dateFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale)
+        // applies to the time portion too. The explicit dates already say which
+        // day, so no relative prefix is layered on top.
         val dateTime = { z: java.time.ZonedDateTime -> "${dateFormat.format(z)}, ${timeFormat.format(z)}" }
         dateTime(begin) + RANGE + dateTime(end)
     }
 }
 
+/**
+ * A short label for [day] relative to [today], or `null` when it *is* today (the
+ * common case, which needs no prefix). Weekday names are used only within the
+ * current week — a "next Wednesday" would be indistinguishable from this one, so
+ * anything past this week falls back to the exact date.
+ */
+private fun relativeDayPrefix(
+    day: LocalDate,
+    today: LocalDate,
+    firstDayOfWeek: DayOfWeek,
+    locale: Locale,
+    dateFormat: DateTimeFormatter,
+    tomorrowLabel: String,
+    yesterdayLabel: String,
+): String? = when (ChronoUnit.DAYS.between(today, day)) {
+    0L -> null
+    1L -> tomorrowLabel
+    -1L -> yesterdayLabel
+    else -> if (isSameWeek(day, today, firstDayOfWeek)) {
+        day.dayOfWeek.getDisplayName(TextStyle.SHORT, locale)
+    } else {
+        dateFormat.format(day)
+    }
+}
+
+/**
+ * True when [day] and [today] share the same week. The week boundary honours the
+ * user's *week starts on* setting (already resolved to a concrete [firstDayOfWeek],
+ * with [firstDayOfWeek] falling back to the locale default upstream).
+ */
+private fun isSameWeek(day: LocalDate, today: LocalDate, firstDayOfWeek: DayOfWeek): Boolean {
+    val startOfWeek = today.previousOrSame(firstDayOfWeek)
+    return !day.isBefore(startOfWeek) && day.isBefore(startOfWeek.plusWeeks(1))
+}
+
+/** The most recent [target] on or before this date (this date itself when it matches). */
+private fun LocalDate.previousOrSame(target: DayOfWeek): LocalDate {
+    val backtrack = (dayOfWeek.value - target.value + 7) % 7
+    return minusDays(backtrack.toLong())
+}
+
 private const val RANGE = " – "

app/src/main/java/de/jeanlucmakiola/calendula/domain/EventColorPalette.kt

@@ -0,0 +1,185 @@
+package de.jeanlucmakiola.calendula.domain
+
+import kotlin.math.abs
+import kotlin.math.atan2
+import kotlin.math.cbrt
+import kotlin.math.hypot
+import kotlin.math.pow
+import kotlin.math.roundToInt
+import kotlin.math.sqrt
+
+/**
+ * Curates an account's published event palette for the colour picker.
+ *
+ * Sync adapters differ wildly in what they publish: Google exposes a
+ * hand-picked two-dozen set, while CalDAV adapters (DAVx5) dump all ~147 CSS3
+ * named colours — including exact-value aliases (aqua/cyan, the gray/grey
+ * spelling pairs) and dozens of visually indistinguishable whites and grays
+ * (#22).
+ *
+ * Crucially, curation runs against the colour the picker actually *paints*, not
+ * the raw provider value. The picker softens every swatch through [pastelArgb]:
+ * it pins lightness to a constant and caps saturation, so the raw palette's
+ * lightness axis is invisible on screen. Two raw colours that look different —
+ * a navy and a mid blue — paint as one swatch, and every neutral (black, the
+ * grays, white) paints as the same pale tint. Judging distinctness in raw
+ * space, as before, left near-identical painted swatches and stranded the
+ * neutrals as a run of look-alike "pinks" at the end of the grid.
+ *
+ * Three steps, all in painted space:
+ *  1. Collapse swatches that paint identically to one (alphabetically-first key
+ *     wins, deterministically) — this folds aliases, dark/light shades of a
+ *     hue, and all the neutrals together.
+ *  2. Oversized palettes (> [CURATION_TRIGGER_SIZE]) drop the washed-out
+ *     neutral-origin tints (painted chroma < [PASTEL_CHROMA_FLOOR]) and are
+ *     then thinned to visually distinct colours: most vivid first, a colour is
+ *     kept only when at least [MIN_DELTA_E] (CIE76, painted Lab) from every
+ *     colour already kept. Small palettes are already curated by their adapter
+ *     and pass through whole.
+ *  3. The survivors are ordered like a rainbow — continuously by painted hue —
+ *     with the wheel cut at its single widest empty gap so the one unavoidable
+ *     seam lands in dead space and no hue family is torn across both ends.
+ *
+ * Every surviving option keeps its provider [EventColorOption.key], so a pick
+ * still round-trips through sync.
+ */
+fun List<EventColorOption>.curatedForPicker(): List<EventColorOption> {
+    val painted = sortedBy { it.key }
+        .distinctBy { pastelArgb(it.argb) }
+        .map { it to Lab.of(pastelArgb(it.argb)) }
+    val kept = if (painted.size <= CURATION_TRIGGER_SIZE) {
+        painted
+    } else {
+        thin(painted.filter { (_, lab) -> lab.chroma >= PASTEL_CHROMA_FLOOR })
+    }
+    return orderAroundWheel(kept).map { (option, _) -> option }
+}
+
+/**
+ * Orders swatches continuously around the (painted) hue wheel, then cuts the
+ * circle at its widest angular gap so the single seam lands in empty space
+ * instead of mid-family. Saturation breaks ties, vivid first.
+ */
+private fun orderAroundWheel(
+    swatches: List<Pair<EventColorOption, Lab>>,
+): List<Pair<EventColorOption, Lab>> {
+    if (swatches.size < 2) return swatches
+    val byHue = swatches.sortedWith(
+        compareBy({ (_, lab) -> lab.hue }, { (_, lab) -> -lab.chroma }),
+    )
+    // Split the wheel after the largest empty arc between neighbouring hues;
+    // the default is the wrap gap (last hue back round to the first), i.e. the
+    // familiar 0→360 order, and we only rotate away from it for a wider void.
+    var cutAfter = byHue.lastIndex
+    var widestGap = 360.0 - byHue.last().second.hue + byHue.first().second.hue
+    for (i in 0 until byHue.lastIndex) {
+        val gap = byHue[i + 1].second.hue - byHue[i].second.hue
+        if (gap > widestGap) {
+            widestGap = gap
+            cutAfter = i
+        }
+    }
+    return byHue.subList(cutAfter + 1, byHue.size) + byHue.subList(0, cutAfter + 1)
+}
+
+/** Greedy max-distance filter: vivid colours stake out clusters first. */
+private fun thin(
+    swatches: List<Pair<EventColorOption, Lab>>,
+): List<Pair<EventColorOption, Lab>> {
+    val byVividness = swatches
+        .sortedWith(compareByDescending<Pair<EventColorOption, Lab>> { it.second.chroma }.thenBy { it.first.key })
+    val kept = mutableListOf<Pair<EventColorOption, Lab>>()
+    for (candidate in byVividness) {
+        if (kept.none { it.second.deltaE(candidate.second) < MIN_DELTA_E }) kept += candidate
+    }
+    return kept
+}
+
+/**
+ * The softening the colour picker paints over every swatch: keep the hue, scale
+ * and clamp saturation into a gentle band, and pin value to a constant so
+ * nothing screams and everything reads on the surface. Value is fixed here so
+ * curation is theme-independent — only hue and saturation distinguish painted
+ * swatches.
+ *
+ * This is a self-contained mirror of floret-kit's `pastelize` hue/saturation
+ * shaping (`de.jeanlucmakiola.floret.components.pastelize`), with value pinned
+ * rather than theme-picked. Curation must reason about the colour the picker
+ * paints, so the two shapings have to agree: if floret's saturation band or
+ * curve changes, update this in step.
+ */
+fun pastelArgb(rawArgb: Int): Int {
+    val r = ((rawArgb shr 16) and 0xFF) / 255f
+    val g = ((rawArgb shr 8) and 0xFF) / 255f
+    val b = (rawArgb and 0xFF) / 255f
+    val max = maxOf(r, g, b)
+    val min = minOf(r, g, b)
+    val delta = max - min
+    val hue = when {
+        delta == 0f -> 0f
+        max == r -> 60f * (((g - b) / delta) % 6f)
+        max == g -> 60f * (((b - r) / delta) + 2f)
+        else -> 60f * (((r - g) / delta) + 4f)
+    }.let { if (it < 0f) it + 360f else it }
+    val sat = (if (max == 0f) 0f else delta / max) * 0.6f
+    val s = sat.coerceIn(0.25f, 0.65f)
+    val v = PASTEL_VALUE
+    val c = v * s
+    val x = c * (1f - abs((hue / 60f) % 2f - 1f))
+    val m = v - c
+    val (rr, gg, bb) = when {
+        hue < 60f -> Triple(c, x, 0f)
+        hue < 120f -> Triple(x, c, 0f)
+        hue < 180f -> Triple(0f, c, x)
+        hue < 240f -> Triple(0f, x, c)
+        hue < 300f -> Triple(x, 0f, c)
+        else -> Triple(c, 0f, x)
+    }
+    fun channel(value: Float) = ((value + m) * 255f).roundToInt().coerceIn(0, 255)
+    return (0xFF shl 24) or (channel(rr) shl 16) or (channel(gg) shl 8) or channel(bb)
+}
+
+/** Reference lightness for curation; the picker paints at this on dark surfaces. */
+private const val PASTEL_VALUE = 0.82f
+
+/** Palettes at most this big skip the thinning (Google's ~26 pass through). */
+private const val CURATION_TRIGGER_SIZE = 36
+
+/** Minimum CIE76 ΔE between surviving painted swatches. */
+private const val MIN_DELTA_E = 13.0
+
+/**
+ * Painted-chroma floor for oversized palettes: below this a swatch is a washed-
+ * out tint — the neutrals and near-whites the saturation clamp muddies — so it
+ * is dropped rather than shown as pale filler.
+ */
+private const val PASTEL_CHROMA_FLOOR = 22.0
+
+/** CIE Lab (D65) — the space where Euclidean distance ≈ perceived difference. */
+private class Lab(val l: Double, val a: Double, val b: Double) {
+    val chroma: Double get() = hypot(a, b)
+
+    /** Hue angle in degrees, 0–360, around the Lab a-b plane. */
+    val hue: Double get() = (Math.toDegrees(atan2(b, a)) + 360.0) % 360.0
+
+    fun deltaE(other: Lab): Double =
+        sqrt((l - other.l).pow(2) + (a - other.a).pow(2) + (b - other.b).pow(2))
+
+    companion object {
+        fun of(argb: Int): Lab {
+            fun linear(shift: Int): Double {
+                val c = ((argb shr shift) and 0xFF) / 255.0
+                return if (c <= 0.04045) c / 12.92 else ((c + 0.055) / 1.055).pow(2.4)
+            }
+            val r = linear(16)
+            val g = linear(8)
+            val b = linear(0)
+            val x = (0.4124 * r + 0.3576 * g + 0.1805 * b) / 0.95047
+            val y = 0.2126 * r + 0.7152 * g + 0.0722 * b
+            val z = (0.0193 * r + 0.1192 * g + 0.9505 * b) / 1.08883
+            fun f(t: Double) = if (t > 0.008856) cbrt(t) else 7.787 * t + 16.0 / 116.0
+            val fy = f(y)
+            return Lab(116 * fy - 16, 500 * (f(x) - fy), 200 * (fy - f(z)))
+        }
+    }
+}

app/src/main/java/de/jeanlucmakiola/calendula/domain/EventForm.kt

@@ -4,13 +4,14 @@ import kotlinx.datetime.LocalDate
 import kotlinx.datetime.LocalDateTime
 import kotlinx.datetime.LocalTime
 import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toInstant
 import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Instant
 
 /**
  * User input for creating an event (and, from v1.3, editing one). Times are
- * wall-clock values in the device zone; the data layer translates them to
- * provider millis (all-day events normalise to UTC midnights there).
+ * wall-clock values in [timezone]; the data layer translates them to provider
+ * millis (all-day events normalise to UTC midnights there).
  */
 data class EventForm(
     val calendarId: Long?,
@@ -18,6 +19,23 @@ data class EventForm(
     val isAllDay: Boolean = false,
     val start: LocalDateTime,
     val end: LocalDateTime,
+    /**
+     * The zone [start]/[end] are wall-clock values in, or null to follow the
+     * device — null is not "no zone", it is "whichever zone the device is in
+     * when this is saved", which is what an event authored and lived in one
+     * place wants. The data layer resolves it at write time and always stamps a
+     * concrete `EVENT_TIMEZONE`.
+     *
+     * A non-null value pins the event to a zone regardless of where the device
+     * is, so it keeps tracking that zone's offset across DST. [toEditForm] only
+     * sets it when the stored zone differs from the device's, so merely opening
+     * a local event never reveals the field — and re-opening a pinned one in
+     * another zone round-trips it rather than silently re-anchoring it.
+     *
+     * Always null for all-day events: those are date-anchored, not zone-anchored
+     * (see [EventFormField.Timezone] and the data layer's UTC-midnight rule).
+     */
+    val timezone: String? = null,
     val location: String = "",
     val description: String = "",
     /** Reminder lead times in minutes before the start, deduplicated. */
@@ -66,11 +84,19 @@ data class EventAttendee(
 
 /**
  * The form's optional sections. Which ones show by default is a user setting;
- * the rest unfold behind a "more fields" button.
+ * the rest unfold behind a "more fields" button. Declaration order is the order
+ * they're offered in, so a new constant goes where it belongs on the form, not
+ * at the end.
  */
 enum class EventFormField {
     Location,
     Description,
+    /**
+     * Pins the event's wall-clock times to a zone. Offered right after the time
+     * fields it qualifies, and suppressed entirely for all-day events, whose
+     * dates are deliberately zone-free.
+     */
+    Timezone,
     Reminders,
     Recurrence,
     Availability,
@@ -100,8 +126,25 @@ enum class EventFormProblem {
  * All-day provider times are UTC midnights with an exclusive end; the form
  * shows the last covered day and keeps placeholder wall-clock times in case
  * the user switches the event to timed.
+ *
+ * A timed event stored in a zone other than [zone] is prefilled *in its own
+ * zone* and keeps it pinned, so the wall-clock the form shows is the one the
+ * event means ("the New York 09:00 call") and a later save re-anchors it to the
+ * same zone rather than the device's.
  */
 fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone): EventForm {
+    // All-day events are date-anchored and carry a nominal "UTC" that is an
+    // anchor, not a location, so they never pin a zone.
+    val pinnedZone = if (instance.isAllDay) {
+        null
+    } else {
+        eventTimezone
+            ?.takeIf { it != zone.id }
+            // An unparseable id (a malformed sync row) can't be honoured or
+            // shown; fall back to the device zone rather than failing the open.
+            ?.takeIf { runCatching { TimeZone.of(it) }.isSuccess }
+    }
+    val formZone = pinnedZone?.let { TimeZone.of(it) } ?: zone
     val (start, end) = if (instance.isAllDay) {
         val startDate = Instant.fromEpochMilliseconds(beginMillis)
             .toLocalDateTime(TimeZone.UTC).date
@@ -110,8 +153,8 @@ fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone):
         val endDate = maxOf(startDate, LocalDate.fromEpochDays(endExclusive.toEpochDays() - 1))
         LocalDateTime(startDate, LocalTime(9, 0)) to LocalDateTime(endDate, LocalTime(10, 0))
     } else {
-        Instant.fromEpochMilliseconds(beginMillis).toLocalDateTime(zone) to
-            Instant.fromEpochMilliseconds(endMillis).toLocalDateTime(zone)
+        Instant.fromEpochMilliseconds(beginMillis).toLocalDateTime(formZone) to
+            Instant.fromEpochMilliseconds(endMillis).toLocalDateTime(formZone)
     }
     return EventForm(
         calendarId = instance.calendarId,
@@ -119,6 +162,7 @@ fun EventDetail.toEditForm(beginMillis: Long, endMillis: Long, zone: TimeZone):
         isAllDay = instance.isAllDay,
         start = start,
         end = end,
+        timezone = pinnedZone,
         location = instance.location.orEmpty(),
         description = description.orEmpty(),
         reminders = reminders.map { it.minutes }.distinct().sorted(),
@@ -176,6 +220,23 @@ fun EventDetail.toEditSnapshot(beginMillis: Long, endMillis: Long, zone: TimeZon
         rowEnd = instance.end,
     )
 
+/**
+ * The form's times as they land in [target] — what a pinned event's wall-clock
+ * actually means where the user is standing. Null when there's nothing to
+ * disambiguate: an unpinned event (already in [target]), one pinned to [target]
+ * itself, an all-day event (no zone), or an unparseable pinned zone.
+ *
+ * The form edits a pinned event in its own zone, so this is what lets the UI
+ * show the other side of the pair rather than making the user do the arithmetic.
+ */
+fun EventForm.timesIn(target: TimeZone): Pair<LocalDateTime, LocalDateTime>? {
+    if (isAllDay) return null
+    val pinned = timezone?.let { runCatching { TimeZone.of(it) }.getOrNull() } ?: return null
+    if (pinned.id == target.id) return null
+    return start.toInstant(pinned).toLocalDateTime(target) to
+        end.toInstant(pinned).toLocalDateTime(target)
+}
+
 /**
  * The optional sections that hold a value in [form] — when editing, these
  * must be visible regardless of the user's default-fields setting, or the
@@ -184,6 +245,7 @@ fun EventDetail.toEditSnapshot(beginMillis: Long, endMillis: Long, zone: TimeZon
 fun EventForm.populatedFields(): Set<EventFormField> = buildSet {
     if (location.isNotBlank()) add(EventFormField.Location)
     if (description.isNotBlank()) add(EventFormField.Description)
+    if (timezone != null) add(EventFormField.Timezone)
     if (reminders.isNotEmpty()) add(EventFormField.Reminders)
     if (rrule != null) add(EventFormField.Recurrence)
     if (availability != Availability.Busy) add(EventFormField.Availability)

app/src/main/java/de/jeanlucmakiola/calendula/domain/TimeZoneCatalog.kt

@@ -0,0 +1,225 @@
+package de.jeanlucmakiola.calendula.domain
+
+import java.text.Normalizer
+import java.time.Instant
+import java.time.ZoneId
+import java.time.format.TextStyle
+import java.util.Locale
+
+/**
+ * One selectable zone, resolved for display at a given instant. [id] is the IANA
+ * id we store in `EVENT_TIMEZONE` and show as the primary label (via [label]);
+ * [shortName] its abbreviation ("CET", "WET", "UTC", or a "GMT+05:30" fallback);
+ * [offsetMinutes] its offset. Both the abbreviation and the offset shift with
+ * DST, so they're only meaningful next to the moment they were resolved for.
+ *
+ * [displayName] is the long localized name ("Central European Time"). It's kept
+ * for search only — matching on it lets someone type "pacific" — and is *not*
+ * displayed: spelled out next to the id it made the field too wide to fit.
+ */
+data class TimeZoneOption(
+    val id: String,
+    val displayName: String,
+    val shortName: String,
+    val offsetMinutes: Int,
+) {
+    /** The id as the primary label, underscores undone ("America/New York"). */
+    val label: String get() = id.replace('_', ' ')
+
+    /** The trailing segment of the id ("Europe/Berlin" -> "Berlin"), underscores undone. */
+    val city: String get() = id.substringAfterLast('/').replace('_', ' ')
+
+    /** The leading segment ("Europe/Berlin" -> "Europe"); empty for bare ids like "UTC". */
+    val region: String get() = id.substringBeforeLast('/', missingDelimiterValue = "")
+
+    /**
+     * The four fields [filterTimeZones] matches on, normalized once here rather
+     * than per query. Normalizing is not cheap — NFD decomposition plus a combining-
+     * mark strip — and a search re-examines every option on every keystroke, so
+     * doing it at construction turns ~2400 normalizations per character into a few
+     * hundred plain `startsWith`/`contains` calls.
+     *
+     * Declared in the class body, so it stays out of `equals`/`hashCode`/`copy`:
+     * it is derived state, and two options with the same id are the same option.
+     */
+    internal val searchKeys: TimeZoneSearchKeys = TimeZoneSearchKeys(
+        city = city.normalizeForSearch(),
+        id = id.normalizeForSearch(),
+        displayName = displayName.normalizeForSearch(),
+        shortName = shortName.normalizeForSearch(),
+    )
+}
+
+/** Pre-normalized match targets for one [TimeZoneOption]. */
+internal data class TimeZoneSearchKeys(
+    val city: String,
+    val id: String,
+    val displayName: String,
+    val shortName: String,
+)
+
+private fun optionFor(
+    zone: ZoneId,
+    locale: Locale,
+    at: Instant,
+    regionOf: (String) -> String?,
+): TimeZoneOption = TimeZoneOption(
+    id = zone.id,
+    displayName = zone.getDisplayName(TextStyle.FULL, locale),
+    shortName = resolveAbbreviation(zone.id, zone.rules.isDaylightSavings(at), locale, regionOf),
+    offsetMinutes = zone.rules.getOffset(at).totalSeconds / 60,
+)
+
+/**
+ * The zone abbreviation ("EDT", "CEST"), DST-correct at the resolved instant, or
+ * a "GMT+05:30" form when no name exists.
+ *
+ * Two things make this fiddlier than it looks. First, it goes through
+ * java.util.TimeZone, NOT java.time's "zzz" formatter: on Android the latter has
+ * no short specific-zone names and degrades every zone to a "GMT-4" form (it
+ * agrees with java.util only on desktop, which is why desktop can't catch it).
+ * Second, ICU only surfaces the short name *commonly used in the display
+ * locale's region* — a German-region English phone (en-DE) is shown "CEST" but
+ * not "EDT", and an en-US phone the reverse. So ask in the display *language*
+ * but the *zone's* region ("America/New_York" in en-US, "Europe/Berlin" in
+ * en-DE) via [regionOf]. That covers almost everything; where a region still
+ * yields no name (Athens in en-GR) the plain device locale sometimes does, so
+ * try that next; failing both, the caller shows the offset.
+ *
+ * [regionOf] maps an IANA id to an ISO 3166 region and is injected because it
+ * needs `android.icu`, which this pure-JVM module can't import. The default
+ * (no region) leaves only the device-locale path — which is all a JVM test has
+ * anyway, and enough there since desktop ICU isn't region-gated the same way.
+ */
+private fun resolveAbbreviation(
+    id: String,
+    dst: Boolean,
+    locale: Locale,
+    regionOf: (String) -> String?,
+): String {
+    fun shortIn(loc: Locale): String =
+        java.util.TimeZone.getTimeZone(id).getDisplayName(dst, java.util.TimeZone.SHORT, loc)
+    val regional = regionOf(id)
+        ?.takeIf { it.length == 2 }
+        ?.let { shortIn(Locale(locale.language, it)) }
+    if (regional != null && !regional.looksLikeOffset()) return regional
+    // Either no region, or the region has no name for this zone: the device
+    // locale is the next-best shot, and the offset the last resort.
+    return shortIn(locale)
+}
+
+/** True for the offset-style names ICU returns when a zone has no abbreviation. */
+private fun String.looksLikeOffset(): Boolean = this == "UTC" || startsWith("GMT")
+
+/**
+ * Every zone the JVM knows, resolved at [at]. [regionOf] (see
+ * [resolveAbbreviation]) supplies the zone's region for the abbreviation.
+ *
+ * This is ~600 entries, each costing a localized display name plus up to two ICU
+ * short-name lookups, so it is **not** cheap enough for the main thread — build
+ * it off-thread once and filter the result with [filterTimeZones] rather than
+ * rebuilding per keystroke.
+ *
+ * Bare three-letter ids ("EST", "CST6CDT") and the legacy SystemV tree are
+ * dropped: they're aliases the tz database keeps for compatibility, they'd
+ * double up the real zones in the list, and none of them is what a user means
+ * when they pick a place.
+ */
+fun timeZoneOptions(
+    locale: Locale = Locale.getDefault(),
+    at: Instant = Instant.now(),
+    regionOf: (String) -> String? = { null },
+): List<TimeZoneOption> = ZoneId.getAvailableZoneIds()
+    .asSequence()
+    .filter { it.contains('/') && !it.startsWith("SystemV/") }
+    .map { optionFor(ZoneId.of(it), locale, at, regionOf) }
+    .sortedWith(compareBy({ it.region }, { it.city }))
+    .toList()
+
+/**
+ * Resolve a single [id] the same way [timeZoneOptions] would, or null if the tz
+ * database doesn't know it — for labelling one known zone without paying to
+ * build the whole catalogue.
+ */
+fun timeZoneOptionOf(
+    id: String,
+    locale: Locale = Locale.getDefault(),
+    at: Instant = Instant.now(),
+    regionOf: (String) -> String? = { null },
+): TimeZoneOption? {
+    val zone = runCatching { ZoneId.of(id) }.getOrNull() ?: return null
+    return optionFor(zone, locale, at, regionOf)
+}
+
+/**
+ * The short descriptor shown beneath the id, e.g. "CET · GMT+01:00". "UTC" reads
+ * fine alone; any other offset-shaped name is normalised to our own GMT form so
+ * the offset isn't stated twice in ICU's spelling and ours.
+ */
+fun zoneDescriptor(option: TimeZoneOption): String {
+    val abbrev = option.shortName
+    return when {
+        abbrev == "UTC" -> "UTC"
+        abbrev.startsWith("GMT") -> formatGmtOffset(option.offsetMinutes)
+        else -> "$abbrev · ${formatGmtOffset(option.offsetMinutes)}"
+    }
+}
+
+/**
+ * [options] matching [query], best matches first; a blank query returns the list
+ * unchanged. Matching is accent- and case-insensitive and treats underscores as
+ * spaces, so "sao paulo" finds "America/Sao_Paulo".
+ *
+ * Ranking puts a city that *starts with* the query above one that merely
+ * contains it — typing "col" should reach Colombo before Turks_and_Caicos —
+ * and the id is matched ahead of the localized name so a user who knows the
+ * IANA id gets it first. An exact abbreviation hit ("CEST") ranks just under a
+ * city prefix, so typing an abbreviation surfaces every zone that shows it
+ * (all the CEST zones together); the abbreviation is the one resolved for the
+ * display region, i.e. what the row actually shows.
+ */
+fun filterTimeZones(options: List<TimeZoneOption>, query: String): List<TimeZoneOption> {
+    val needle = query.normalizeForSearch()
+    if (needle.isEmpty()) return options
+    return options
+        .mapNotNull { option ->
+            val keys = option.searchKeys
+            val rank = when {
+                keys.city.startsWith(needle) -> 0
+                keys.shortName == needle -> 1
+                keys.displayName.startsWith(needle) -> 2
+                keys.shortName.startsWith(needle) -> 3
+                keys.city.contains(needle) -> 4
+                keys.id.contains(needle) -> 5
+                keys.displayName.contains(needle) -> 6
+                else -> return@mapNotNull null
+            }
+            rank to option
+        }
+        .sortedWith(compareBy({ it.first }, { it.second.city }))
+        .map { it.second }
+}
+
+/** Unicode combining marks — what NFD decomposition leaves an accent as. */
+private val COMBINING_MARKS = Regex("\\p{Mn}+")
+
+/**
+ * Lowercased, accent-stripped, underscores and slashes flattened to spaces, so
+ * a query types the way a place is spoken rather than the way the tz database
+ * spells it.
+ */
+private fun String.normalizeForSearch(): String =
+    Normalizer.normalize(this, Normalizer.Form.NFD)
+        .replace(COMBINING_MARKS, "")
+        .replace('_', ' ')
+        .replace('/', ' ')
+        .lowercase(Locale.ROOT)
+        .trim()
+
+/** "GMT+02:00" / "GMT-05:30" / "GMT" — the offset as shown next to a zone. */
+fun formatGmtOffset(offsetMinutes: Int): String {
+    if (offsetMinutes == 0) return "GMT"
+    val sign = if (offsetMinutes < 0) '-' else '+'
+    val abs = kotlin.math.abs(offsetMinutes)
+    return "GMT%c%02d:%02d".format(sign, abs / 60, abs % 60)
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/CalendarHost.kt

@@ -33,6 +33,7 @@ import de.jeanlucmakiola.calendula.ui.common.viewBaseStack
 import de.jeanlucmakiola.calendula.ui.day.DayScreen
 import de.jeanlucmakiola.calendula.ui.detail.EventDetailScreen
 import de.jeanlucmakiola.calendula.ui.edit.EventEditScreen
+import de.jeanlucmakiola.calendula.ui.edit.ImportSource
 import de.jeanlucmakiola.calendula.ui.imports.ImportScreen
 import de.jeanlucmakiola.calendula.ui.month.MonthScreen
 import de.jeanlucmakiola.calendula.ui.search.SearchScreen
@@ -74,6 +75,8 @@ fun CalendarHost(
     onImportConsumed: () -> Unit = {},
     requestedInsertForm: EventForm? = null,
     onInsertConsumed: () -> Unit = {},
+    requestedEditKey: LongArray? = null,
+    onEditKeyConsumed: () -> Unit = {},
     viewModel: CalendarHostViewModel = hiltViewModel(),
 ) {
     // Wait for the persisted default view before seeding the stack, so the app
@@ -85,6 +88,8 @@ fun CalendarHost(
     // sensible non-empty initial values, so they're ready before the first frame.
     val quickSwitchViews = viewModel.quickSwitchViews.collectAsStateWithLifecycle().value
     val drawerViewOrder = viewModel.drawerViewOrder.collectAsStateWithLifecycle().value
+    // Whether the jump-to-today control sits in each view's top bar or the FAB (#60).
+    val todayInToolbar = viewModel.todayButtonInToolbar.collectAsStateWithLifecycle().value
 
     var viewStack by rememberSaveable(stateSaver = viewStackSaver) {
         mutableStateOf(listOf(defaultView))
@@ -172,6 +177,9 @@ fun CalendarHost(
     // picker (many). A plain conditional overlay (no slide) — it's transient.
     var importUri by remember { mutableStateOf<android.net.Uri?>(null) }
     var importForm by remember { mutableStateOf<EventForm?>(null) }
+    // Which channel filled [importForm]: an .ics file (prompt to apply the default
+    // reminder) or an ACTION_INSERT intent (apply it automatically) — #49.
+    var importFormSource by remember { mutableStateOf(ImportSource.File) }
     // A restore (in-app "Restore from .ics" button) always runs the full import
     // flow — picker + summary — even for a single-event file, because the intent
     // is "restore a backup", not "add this one event". An externally opened .ics
@@ -190,6 +198,7 @@ fun CalendarHost(
     // reveals on top of whatever was open without extra dismissal.
     LaunchedEffect(requestedInsertForm) {
         if (requestedInsertForm != null) {
+            importFormSource = ImportSource.Insert
             importForm = requestedInsertForm
             onInsertConsumed()
         }
@@ -207,6 +216,20 @@ fun CalendarHost(
         importForm = null
     }
 
+    // An external "edit this event" (ACTION_EDIT, e.g. an assistant/task app or
+    // widget) opens the occurrence straight in the edit form. Drop any covering
+    // overlay first — the edit overlay sits below Settings/import in the Box, so
+    // without this it would open hidden underneath them. Same held-key pattern as
+    // a detail-screen "Edit" tap; a saved edit just returns to the calendar.
+    LaunchedEffect(requestedEditKey) {
+        if (requestedEditKey != null) {
+            dismissCoveringOverlays()
+            heldEditKey = requestedEditKey
+            editKey = requestedEditKey
+            onEditKeyConsumed()
+        }
+    }
+
     // A home-screen widget launch asks to open a date (→ day view), open an
     // event's detail, or start a create. Handled once and cleared, mirroring
     // [requestedDetailKey]. Date/event opens root the stack in the widget's own
@@ -297,6 +320,7 @@ fun CalendarHost(
                     onCreateEvent = onCreateEvent,
                     quickSwitchViews = quickSwitchViews,
                     drawerViewOrder = drawerViewOrder,
+                    todayInToolbar = todayInToolbar,
                 )
                 CalendarView.Day -> DayScreen(
                     selectedView = currentView,
@@ -308,16 +332,19 @@ fun CalendarHost(
                     initialDateIso = pendingDayIso,
                     quickSwitchViews = quickSwitchViews,
                     drawerViewOrder = drawerViewOrder,
+                    todayInToolbar = todayInToolbar,
                 )
                 CalendarView.Month -> MonthScreen(
                     selectedView = currentView,
                     onSelectView = onSelectView,
                     onOpenDay = onOpenDay,
+                    onEventClick = onEventClick,
                     onOpenSettings = onOpenSettings,
                     onOpenSearch = onOpenSearch,
                     onCreateEvent = onCreateEvent,
                     quickSwitchViews = quickSwitchViews,
                     drawerViewOrder = drawerViewOrder,
+                    todayInToolbar = todayInToolbar,
                 )
                 CalendarView.Agenda -> AgendaScreen(
                     selectedView = currentView,
@@ -329,6 +356,7 @@ fun CalendarHost(
                     onCreateEvent = onCreateEvent,
                     quickSwitchViews = quickSwitchViews,
                     drawerViewOrder = drawerViewOrder,
+                    todayInToolbar = todayInToolbar,
                 )
             }
         }
@@ -363,6 +391,14 @@ fun CalendarHost(
                         heldEditKey = key
                         editKey = key
                     },
+                    onDuplicate = { form ->
+                        // Reuse the prefilled-create overlay: a duplicate is a
+                        // fresh event, so it applies the default reminder like an
+                        // in-app new event (#52).
+                        importFormSource = ImportSource.Insert
+                        importForm = form
+                        detailKey = null
+                    },
                 )
             }
         }
@@ -435,6 +471,7 @@ fun CalendarHost(
                 onClose = { importUri = null },
                 onOpenSingle = { form ->
                     importUri = null
+                    importFormSource = ImportSource.File
                     importForm = form
                 },
             )
@@ -443,6 +480,7 @@ fun CalendarHost(
             EventEditScreen(
                 initialDateIso = null,
                 initialForm = form,
+                initialFormSource = importFormSource,
                 onClose = { importForm = null },
                 onSaved = { importForm = null },
             )

app/src/main/java/de/jeanlucmakiola/calendula/ui/CalendarHostViewModel.kt

@@ -45,4 +45,12 @@ class CalendarHostViewModel @Inject constructor(
             started = SharingStarted.WhileSubscribed(5_000L),
             initialValue = IMPLEMENTED_VIEWS,
         )
+
+    /** Whether each view's jump-to-today control lives in the top bar, not the FAB (#60). */
+    val todayButtonInToolbar: StateFlow<Boolean> = prefs.todayButtonInToolbar
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5_000L),
+            initialValue = false,
+        )
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/RootScreen.kt

@@ -37,6 +37,8 @@ fun RootScreen(
     onImportConsumed: () -> Unit = {},
     requestedInsertForm: de.jeanlucmakiola.calendula.domain.EventForm? = null,
     onInsertConsumed: () -> Unit = {},
+    requestedEditKey: LongArray? = null,
+    onEditKeyConsumed: () -> Unit = {},
 ) {
     val context = LocalContext.current
     var hasPermission by remember {
@@ -88,6 +90,8 @@ fun RootScreen(
                         onImportConsumed = onImportConsumed,
                         requestedInsertForm = requestedInsertForm,
                         onInsertConsumed = onInsertConsumed,
+                        requestedEditKey = requestedEditKey,
+                        onEditKeyConsumed = onEditKeyConsumed,
                     )
                     false -> ReminderOnboardingScreen(
                         onFinished = reminderOnboarding::finish,

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaRange.kt

@@ -1,10 +1,9 @@
 package de.jeanlucmakiola.calendula.ui.agenda
 
+import de.jeanlucmakiola.floret.locale.localizedDateFormatter
 import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
 import java.time.YearMonth
-import java.time.format.DateTimeFormatter
-import java.time.format.FormatStyle
 import java.util.Locale
 
 /**
@@ -87,10 +86,12 @@ fun parseAgendaRange(stored: String?, default: AgendaRange): AgendaRange = when
 
 /**
  * The concrete span the range covers, starting at [start] through [end]
- * (inclusive), for a human-readable header:
- * - [AgendaRange.Day] → a single medium date ("27 Jun 2026")
+ * (inclusive), for a human-readable header. Both ends use the same day-month
+ * order so a span never mixes "15 Jul" with "Aug 13, 2026":
+ * - [AgendaRange.Day] → a single date ("27 Jun 2026")
  * - [AgendaRange.ThisMonth] → month and year ("June 2026")
- * - everything else → "start – end" ("27 Jun – 3 Jul 2026")
+ * - everything else → "start – end" ("27 Jun – 3 Jul 2026"), with the start's
+ *   year shown too only when it differs from the end's.
  */
 fun agendaRangeWindowSummary(
     range: AgendaRange,
@@ -100,11 +101,15 @@ fun agendaRangeWindowSummary(
 ): String {
     val javaStart = java.time.LocalDate.of(start.year, start.month.ordinal + 1, start.day)
     val javaEnd = java.time.LocalDate.of(end.year, end.month.ordinal + 1, end.day)
-    val medium = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale)
+    val dayMonth = localizedDateFormatter(locale, "dMMM")
+    val dayMonthYear = localizedDateFormatter(locale, "dMMMy")
     return when (range) {
-        AgendaRange.Day -> medium.format(javaStart)
-        AgendaRange.ThisMonth -> DateTimeFormatter.ofPattern("LLLL yyyy", locale).format(javaStart)
-        else -> "${DateTimeFormatter.ofPattern("d MMM", locale).format(javaStart)} – ${medium.format(javaEnd)}"
+        AgendaRange.Day -> dayMonthYear.format(javaStart)
+        AgendaRange.ThisMonth -> localizedDateFormatter(locale, "LLLLy").format(javaStart)
+        else -> {
+            val startFmt = if (start.year == end.year) dayMonth else dayMonthYear
+            "${startFmt.format(javaStart)} – ${dayMonthYear.format(javaEnd)}"
+        }
     }
 }
 

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaRows.kt

@@ -0,0 +1,206 @@
+package de.jeanlucmakiola.calendula.ui.agenda
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Coffee
+import androidx.compose.material3.Card
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import de.jeanlucmakiola.calendula.R
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import de.jeanlucmakiola.calendula.ui.common.EventDimAlpha
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
+import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
+import de.jeanlucmakiola.calendula.ui.common.eventFill
+import de.jeanlucmakiola.calendula.ui.common.formatTimeOfDay
+import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.floret.locale.currentLocale
+import de.jeanlucmakiola.floret.locale.localizedDateFormatter
+import kotlinx.datetime.DateTimeUnit
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.plus
+import kotlinx.datetime.toLocalDateTime
+import kotlin.time.Instant
+import java.util.Locale
+
+// The agenda's row vocabulary, split out of AgendaScreen so the month view's
+// split style can list a day with exactly the same visual language instead of
+// growing a parallel set of event rows.
+
+@Composable
+internal fun AgendaDayHeader(
+    date: LocalDate,
+    today: LocalDate,
+    onOpenDay: (LocalDate) -> Unit,
+) {
+    Surface(
+        color = MaterialTheme.colorScheme.surface,
+        modifier = Modifier
+            .fillMaxWidth()
+            .clickable { onOpenDay(date) },
+    ) {
+        Text(
+            text = agendaDayLabel(date, today),
+            style = MaterialTheme.typography.titleSmall,
+            color = if (date == today) {
+                MaterialTheme.colorScheme.primary
+            } else {
+                MaterialTheme.colorScheme.onSurfaceVariant
+            },
+            modifier = Modifier.padding(start = 28.dp, end = 28.dp, top = 16.dp, bottom = 8.dp),
+        )
+    }
+}
+
+/**
+ * A card standing in for a day with no events — the same coffee-cup motif as the
+ * agenda's full-screen empty state, boxed into a card so the day keeps a visible slot
+ * rather than a bare header. Used for an anchored, event-less today (#35) and for
+ * an empty selected day in the month view's split style.
+ */
+@Composable
+internal fun AgendaEmptyDayRow(text: String, onClick: () -> Unit) {
+    Card(
+        // Match a single event row's resting corner radius (floret groupedShape).
+        shape = RoundedCornerShape(22.dp),
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(horizontal = 16.dp, vertical = 4.dp)
+            .clickable(onClick = onClick),
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(vertical = 18.dp, horizontal = 16.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            Icon(
+                imageVector = Icons.Filled.Coffee,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.size(36.dp),
+            )
+            Spacer(Modifier.height(8.dp))
+            Text(
+                text = text,
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                textAlign = TextAlign.Center,
+            )
+        }
+    }
+}
+
+@Composable
+internal fun AgendaEventRow(
+    event: EventInstance,
+    day: LocalDate,
+    zone: TimeZone,
+    position: Position,
+    dimmed: Boolean,
+    modifier: Modifier = Modifier,
+    onClick: () -> Unit,
+) {
+    val dark = isSystemInDarkTheme()
+    val soften = LocalSoftenColors.current
+    val title = event.title.ifBlank { stringResource(R.string.event_untitled) }
+    GroupedRow(
+        modifier = if (dimmed) modifier.alpha(EventDimAlpha) else modifier,
+        title = title,
+        summary = agendaTimeSummary(event, day, zone),
+        position = position,
+        minHeight = 64.dp,
+        leading = {
+            Box(
+                modifier = Modifier
+                    .size(width = 6.dp, height = 36.dp)
+                    .clip(RoundedCornerShape(3.dp))
+                    .background(eventFill(event.color, dark, soften)),
+            )
+        },
+        onClick = onClick,
+    )
+}
+
+/** "Today · Wed, 17. Jun 2026" — relative word for today/tomorrow, else the date. */
+@Composable
+internal fun agendaDayLabel(date: LocalDate, today: LocalDate): String {
+    val relative = when (date) {
+        today -> stringResource(R.string.agenda_header_today)
+        today.plus(1, DateTimeUnit.DAY) -> stringResource(R.string.agenda_header_tomorrow)
+        else -> null
+    }
+    val formatted = formatAgendaDate(date)
+    return if (relative != null) "$relative · $formatted" else formatted
+}
+
+/**
+ * Time line under the title: "09:00 – 10:00 · Location", "All day", etc.
+ *
+ * A multi-day event shows only the part relevant to [day], spelled out so each
+ * day reads on its own: its first day names the start ("Starts 14:00"), its last
+ * day the end ("Ends 10:00"), and any whole day in between reads as "All day".
+ * An all-day multi-day event is simply "All day" on every day it covers.
+ */
+@Composable
+internal fun agendaTimeSummary(event: EventInstance, day: LocalDate, zone: TimeZone): String {
+    val is24Hour = LocalUse24HourFormat.current
+    val locale = currentLocale()
+
+    val time = when (val label = agendaTimeLabel(event, day, zone)) {
+        AgendaTimeLabel.AllDay -> stringResource(R.string.event_detail_all_day)
+        is AgendaTimeLabel.Starts -> stringResource(
+            R.string.agenda_span_starts,
+            formatTime(label.start, zone, is24Hour, locale),
+        )
+        is AgendaTimeLabel.Ends -> stringResource(
+            R.string.agenda_span_ends,
+            formatTime(label.end, zone, is24Hour, locale),
+        )
+        is AgendaTimeLabel.Range -> "${formatTime(label.start, zone, is24Hour, locale)} – " +
+            formatTime(label.end, zone, is24Hour, locale)
+    }
+
+    val location = event.location?.takeIf { it.isNotBlank() }
+    return if (location != null) "$time · $location" else time
+}
+
+private fun formatTime(
+    instant: Instant,
+    zone: TimeZone,
+    is24Hour: Boolean,
+    locale: Locale,
+): String {
+    val t = instant.toLocalDateTime(zone).time
+    return formatTimeOfDay(t.hour, t.minute, is24Hour, locale)
+}
+
+private fun formatAgendaDate(date: LocalDate): String {
+    val locale = Locale.getDefault()
+    val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
+    // Weekday + date in the locale's own field order (e.g. "Wed, Jun 17, 2026"
+    // vs "Mi., 17. Juni 2026") rather than a hardcoded day-month-year layout.
+    return localizedDateFormatter(locale, "EEEdMMMy").format(java)
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaScreen.kt

@@ -1,9 +1,6 @@
 package de.jeanlucmakiola.calendula.ui.agenda
 
 import androidx.compose.foundation.ExperimentalFoundationApi
-import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -15,23 +12,21 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
-import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Coffee
-import androidx.compose.material.icons.filled.DateRange
 import androidx.compose.material.icons.filled.Menu
 import androidx.compose.material.icons.filled.Search
+import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.DrawerValue
+import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.ModalNavigationDrawer
 import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
@@ -45,8 +40,6 @@ import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.alpha
-import androidx.compose.ui.draw.clip
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
@@ -62,31 +55,23 @@ import de.jeanlucmakiola.calendula.ui.common.agendaRangeLabel
 import de.jeanlucmakiola.floret.identity.animateItemMotion
 import de.jeanlucmakiola.calendula.ui.common.CalendarDrawer
 import de.jeanlucmakiola.calendula.ui.common.CalendarFabColumn
+import de.jeanlucmakiola.calendula.ui.common.TodayAction
 import de.jeanlucmakiola.calendula.ui.common.CalendarFailure
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
-import de.jeanlucmakiola.calendula.ui.common.EventDimAlpha
-import de.jeanlucmakiola.floret.components.GroupedRow
-import de.jeanlucmakiola.floret.components.Position
 import de.jeanlucmakiola.calendula.ui.common.ViewSwitcherPill
 import de.jeanlucmakiola.calendula.ui.common.next
-import de.jeanlucmakiola.floret.components.pastelize
 import de.jeanlucmakiola.floret.components.positionOf
 import de.jeanlucmakiola.calendula.ui.common.rememberCurrentMinute
-import de.jeanlucmakiola.calendula.ui.common.currentLocale
-import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
-import de.jeanlucmakiola.calendula.ui.common.formatTimeOfDay
+import de.jeanlucmakiola.floret.locale.currentLocale
 import kotlinx.coroutines.launch
-import kotlinx.datetime.DateTimeUnit
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.TimeZone
-import kotlinx.datetime.plus
-import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Instant
-import java.time.format.TextStyle as JavaTextStyle
-import java.util.Locale
 
-private val zone = TimeZone.currentSystemDefault()
+// No file-level zone constant here on purpose: it would be fixed for the process
+// lifetime and drift from the zone AgendaViewModel groups in after a device
+// time-zone change. The zone travels on AgendaUiState.Success instead.
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -100,12 +85,14 @@ fun AgendaScreen(
     onCreateEvent: (LocalDate, Int?) -> Unit,
     quickSwitchViews: List<CalendarView> = IMPLEMENTED_VIEWS,
     drawerViewOrder: List<CalendarView> = IMPLEMENTED_VIEWS,
+    todayInToolbar: Boolean = false,
     modifier: Modifier = Modifier,
     viewModel: AgendaViewModel = hiltViewModel(),
 ) {
     val state by viewModel.state.collectAsStateWithLifecycle()
     val anchor by viewModel.anchor.collectAsStateWithLifecycle()
     val pastDisplay by viewModel.pastEventDisplay.collectAsStateWithLifecycle()
+    val showToday by viewModel.showToday.collectAsStateWithLifecycle()
 
     val scrollBehavior = TopAppBarDefaults.pinnedScrollBehavior()
     val drawerState = rememberDrawerState(DrawerValue.Closed)
@@ -148,12 +135,14 @@ fun AgendaScreen(
                     onCycleView = { onSelectView(selectedView.next(quickSwitchViews)) },
                     onOpenDrawer = { scope.launch { drawerState.open() } },
                     onOpenSearch = onOpenSearch,
+                    showTodayButton = todayInToolbar,
+                    onToday = viewModel::goToToday,
                     scrollBehavior = scrollBehavior,
                 )
             },
             floatingActionButton = {
                 CalendarFabColumn(
-                    todayVisible = !isOnToday,
+                    todayVisible = !isOnToday && !todayInToolbar,
                     todayText = stringResource(R.string.agenda_today_action),
                     onToday = viewModel::goToToday,
                     onCreate = { onCreateEvent(anchor, null) },
@@ -170,9 +159,11 @@ fun AgendaScreen(
                 successState?.takeIf { it.showRangeBar }?.let { s ->
                     Row(
                         verticalAlignment = Alignment.CenterVertically,
+                        // end aligns the selector's right edge with the top-bar view
+                        // switcher (its 8.dp margin + the app bar's 4.dp inset).
                         modifier = Modifier
                             .fillMaxWidth()
-                            .padding(start = 28.dp, end = 16.dp, top = 8.dp, bottom = 8.dp),
+                            .padding(start = 28.dp, end = 12.dp, top = 8.dp, bottom = 8.dp),
                     ) {
                         AgendaRangeBanner(
                             range = s.range,
@@ -190,6 +181,7 @@ fun AgendaScreen(
                 AgendaContent(
                     state = state,
                     pastDisplay = pastDisplay,
+                    showToday = showToday,
                     onRetry = viewModel::goToToday,
                     onEventClick = onEventClick,
                     onOpenDay = onOpenDay,
@@ -213,9 +205,11 @@ fun AgendaScreen(
 }
 
 /**
- * A compact tonal pill showing the agenda's current range. Tapping it opens the
- * range picker as a session-only override. Filled with the primary container
- * while an override is active, so the temporary state is obvious.
+ * The agenda's current range, tapped to open the range picker as a session-only
+ * override. Shares the top-bar view switcher's button shape so the two read as a
+ * family, but stays low-emphasis — a subtle neutral surface tint rather than the
+ * switcher's secondary container, so it doesn't compete. Fills with the primary
+ * container only while an override is active, to make that temporary state clear.
  */
 @Composable
 private fun AgendaRangePill(
@@ -224,43 +218,34 @@ private fun AgendaRangePill(
     onClick: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
-    val container = if (isOverride) {
-        MaterialTheme.colorScheme.primaryContainer
-    } else {
-        MaterialTheme.colorScheme.surfaceContainerHigh
-    }
-    val content = if (isOverride) {
-        MaterialTheme.colorScheme.onPrimaryContainer
-    } else {
-        MaterialTheme.colorScheme.onSurfaceVariant
-    }
-    Surface(
-        color = container,
-        contentColor = content,
-        shape = RoundedCornerShape(50),
-        modifier = modifier.clickable(onClick = onClick),
+    FilledTonalButton(
+        onClick = onClick,
+        shape = MaterialTheme.shapes.large,
+        colors = ButtonDefaults.filledTonalButtonColors(
+            containerColor = if (isOverride) {
+                MaterialTheme.colorScheme.primaryContainer
+            } else {
+                MaterialTheme.colorScheme.surfaceContainerHigh
+            },
+            contentColor = if (isOverride) {
+                MaterialTheme.colorScheme.onPrimaryContainer
+            } else {
+                MaterialTheme.colorScheme.onSurfaceVariant
+            },
+        ),
+        modifier = modifier,
     ) {
-        Row(
-            verticalAlignment = Alignment.CenterVertically,
-            modifier = Modifier.padding(horizontal = 16.dp, vertical = 10.dp),
-        ) {
-            Icon(
-                imageVector = Icons.Filled.DateRange,
-                contentDescription = null,
-                modifier = Modifier.size(18.dp),
-            )
-            Spacer(Modifier.width(8.dp))
-            Text(
-                text = agendaRangeLabel(range),
-                style = MaterialTheme.typography.labelLarge,
-            )
-        }
+        Text(
+            text = agendaRangeLabel(range),
+            style = MaterialTheme.typography.labelLarge,
+        )
     }
 }
 
 /**
- * A header naming the concrete window currently shown, e.g. "Showing all events
- * for · Today, 27 Jun 2026" / "This week, 27 Jun – 3 Jul" / "This month, June 2026".
+ * A header naming the concrete window currently shown under a "showing …" label,
+ * e.g. "27 Jun 2026" / "27 Jun – 3 Jul 2026" / "June 2026". The range's name
+ * lives on the selector button beside it, so it isn't repeated here.
  */
 @Composable
 private fun AgendaRangeBanner(
@@ -277,8 +262,10 @@ private fun AgendaRangeBanner(
             style = MaterialTheme.typography.labelMedium,
             color = MaterialTheme.colorScheme.onSurfaceVariant,
         )
+        // Just the concrete dates — the range's name ("Next 30 days") already
+        // sits on the selector button to the right, so repeating it here is noise.
         Text(
-            text = "${agendaRangeLabel(range)}, $window",
+            text = window,
             style = MaterialTheme.typography.titleMedium,
             color = MaterialTheme.colorScheme.onSurface,
         )
@@ -289,6 +276,7 @@ private fun AgendaRangeBanner(
 private fun AgendaContent(
     state: AgendaUiState,
     pastDisplay: PastEventDisplay,
+    showToday: Boolean,
     onRetry: () -> Unit,
     onEventClick: (EventInstance) -> Unit,
     onOpenDay: (LocalDate) -> Unit,
@@ -304,7 +292,7 @@ private fun AgendaContent(
             // Hiding drops finished events — and any day they leave empty; dimming
             // keeps them but fades the row. Recomputed each minute so events fall
             // away (or fade) as they end while the screen stays open.
-            val days = if (pastDisplay == PastEventDisplay.HIDE) {
+            val filtered = if (pastDisplay == PastEventDisplay.HIDE) {
                 state.days.mapNotNull { day ->
                     val remaining = day.events.filterNot { it.hasEnded(now) }
                     if (remaining.isEmpty()) null else day.copy(events = remaining)
@@ -312,12 +300,21 @@ private fun AgendaContent(
             } else {
                 state.days
             }
+            // Anchor today with a "nothing left today" placeholder — but only when
+            // the window actually starts on today; a jumped-to date has no today in
+            // it, so anchoring there would be misleading (#35).
+            val days = anchorTodayIfMissing(
+                days = filtered,
+                today = state.today,
+                enabled = showToday && state.anchor == state.today,
+            )
             if (days.isEmpty()) {
                 AgendaEmpty(modifier)
             } else {
                 AgendaList(
                     days = days,
                     today = state.today,
+                    zone = state.zone,
                     dimPast = pastDisplay == PastEventDisplay.DIM,
                     now = now,
                     onEventClick = onEventClick,
@@ -334,6 +331,7 @@ private fun AgendaContent(
 private fun AgendaList(
     days: List<AgendaDay>,
     today: LocalDate,
+    zone: TimeZone,
     dimPast: Boolean,
     now: Instant,
     onEventClick: (EventInstance) -> Unit,
@@ -349,76 +347,38 @@ private fun AgendaList(
             stickyHeader(key = "header-${day.date}") {
                 AgendaDayHeader(date = day.date, today = today, onOpenDay = onOpenDay)
             }
-            itemsIndexed(
-                items = day.events,
-                key = { _, event -> event.instanceId },
-            ) { index, event ->
-                AgendaEventRow(
-                    event = event,
-                    position = positionOf(index, day.events.size),
-                    dimmed = dimPast && event.hasEnded(now),
-                    modifier = animateItemMotion(),
-                    onClick = { onEventClick(event) },
-                )
+            if (day.events.isEmpty()) {
+                // An anchored, event-less today (#35) — "nothing left today".
+                item(key = "placeholder-${day.date}") {
+                    AgendaEmptyDayRow(
+                        text = stringResource(R.string.agenda_no_more_today),
+                        onClick = { onOpenDay(day.date) },
+                    )
+                }
+            } else {
+                itemsIndexed(
+                    items = day.events,
+                    // Scope the key by day: a multi-day event appears under every
+                    // day it spans, so its instanceId alone is not unique across
+                    // the list (LazyColumn requires unique keys).
+                    key = { _, event -> "${day.date}-${event.instanceId}" },
+                ) { index, event ->
+                    AgendaEventRow(
+                        event = event,
+                        day = day.date,
+                        zone = zone,
+                        position = positionOf(index, day.events.size),
+                        dimmed = dimPast && event.hasEnded(now),
+                        modifier = animateItemMotion(),
+                        onClick = { onEventClick(event) },
+                    )
+                }
             }
             item(key = "gap-${day.date}") { Spacer(Modifier.height(8.dp)) }
         }
     }
 }
 
-@Composable
-private fun AgendaDayHeader(
-    date: LocalDate,
-    today: LocalDate,
-    onOpenDay: (LocalDate) -> Unit,
-) {
-    Surface(
-        color = MaterialTheme.colorScheme.surface,
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable { onOpenDay(date) },
-    ) {
-        Text(
-            text = agendaDayLabel(date, today),
-            style = MaterialTheme.typography.titleSmall,
-            color = if (date == today) {
-                MaterialTheme.colorScheme.primary
-            } else {
-                MaterialTheme.colorScheme.onSurfaceVariant
-            },
-            modifier = Modifier.padding(start = 28.dp, end = 28.dp, top = 16.dp, bottom = 8.dp),
-        )
-    }
-}
-
-@Composable
-private fun AgendaEventRow(
-    event: EventInstance,
-    position: Position,
-    dimmed: Boolean,
-    modifier: Modifier = Modifier,
-    onClick: () -> Unit,
-) {
-    val dark = isSystemInDarkTheme()
-    val title = event.title.ifBlank { stringResource(R.string.event_untitled) }
-    GroupedRow(
-        modifier = if (dimmed) modifier.alpha(EventDimAlpha) else modifier,
-        title = title,
-        summary = agendaTimeSummary(event),
-        position = position,
-        minHeight = 64.dp,
-        leading = {
-            Box(
-                modifier = Modifier
-                    .size(width = 6.dp, height = 36.dp)
-                    .clip(RoundedCornerShape(3.dp))
-                    .background(pastelize(event.color, dark)),
-            )
-        },
-        onClick = onClick,
-    )
-}
-
 @Composable
 private fun AgendaEmpty(modifier: Modifier = Modifier) {
     Column(
@@ -448,6 +408,8 @@ private fun AgendaTopBar(
     onCycleView: () -> Unit,
     onOpenDrawer: () -> Unit,
     onOpenSearch: () -> Unit,
+    showTodayButton: Boolean,
+    onToday: () -> Unit,
     scrollBehavior: TopAppBarScrollBehavior,
 ) {
     TopAppBar(
@@ -466,6 +428,7 @@ private fun AgendaTopBar(
             }
         },
         actions = {
+            TodayAction(show = showTodayButton, onToday = onToday)
             IconButton(onClick = onOpenSearch) {
                 Icon(
                     imageVector = Icons.Default.Search,
@@ -485,42 +448,3 @@ private fun AgendaTopBar(
         scrollBehavior = scrollBehavior,
     )
 }
-
-/** "Today · Wed, 17. Jun 2026" — relative word for today/tomorrow, else the date. */
-@Composable
-private fun agendaDayLabel(date: LocalDate, today: LocalDate): String {
-    val relative = when (date) {
-        today -> stringResource(R.string.agenda_header_today)
-        today.plus(1, DateTimeUnit.DAY) -> stringResource(R.string.agenda_header_tomorrow)
-        else -> null
-    }
-    val formatted = formatAgendaDate(date)
-    return if (relative != null) "$relative · $formatted" else formatted
-}
-
-/** Time line under the title: "09:00 – 10:00 · Location", "All day", etc. */
-@Composable
-private fun agendaTimeSummary(event: EventInstance): String {
-    val time = if (event.isAllDay) {
-        stringResource(R.string.event_detail_all_day)
-    } else {
-        val is24Hour = LocalUse24HourFormat.current
-        val locale = currentLocale()
-        "${formatTime(event.start, is24Hour, locale)} – ${formatTime(event.end, is24Hour, locale)}"
-    }
-    val location = event.location?.takeIf { it.isNotBlank() }
-    return if (location != null) "$time · $location" else time
-}
-
-private fun formatTime(instant: Instant, is24Hour: Boolean, locale: Locale): String {
-    val t = instant.toLocalDateTime(zone).time
-    return formatTimeOfDay(t.hour, t.minute, is24Hour, locale)
-}
-
-private fun formatAgendaDate(date: LocalDate): String {
-    val locale = Locale.getDefault()
-    val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
-    val weekday = java.dayOfWeek.getDisplayName(JavaTextStyle.SHORT, locale)
-    val monthName = java.month.getDisplayName(JavaTextStyle.SHORT, locale)
-    return "$weekday, ${date.day}. $monthName ${date.year}"
-}

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaUiState.kt

@@ -2,9 +2,70 @@ package de.jeanlucmakiola.calendula.ui.agenda
 
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.FailureReason
+import kotlinx.datetime.DateTimeUnit
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.TimeZone
+import kotlinx.datetime.plus
 import kotlinx.datetime.toLocalDateTime
+import kotlin.time.Duration.Companion.milliseconds
+import kotlin.time.Instant
+
+/**
+ * The zone the event's calendar dates live in. Timed events are resolved in the
+ * device [zone]; all-day events live at UTC midnights with an exclusive end, so
+ * resolving them anywhere but UTC shifts the boundaries — east of UTC that leaks
+ * a one-day event onto its next day. Matches the Week view and detail card.
+ */
+private fun EventInstance.dateZone(zone: TimeZone): TimeZone =
+    if (isAllDay) TimeZone.UTC else zone
+
+/** The first calendar day this event occupies. */
+fun EventInstance.spanFirstDay(zone: TimeZone): LocalDate =
+    start.toLocalDateTime(dateZone(zone)).date
+
+/**
+ * The last calendar day this event actually occupies. An event ending exactly at
+ * midnight (all-day events end at the exclusive next-midnight) does not reach
+ * into that boundary day, so resolve the instant just before [end].
+ */
+fun EventInstance.spanLastDay(zone: TimeZone): LocalDate {
+    val lastInstant = if (end > start) end - 1.milliseconds else start
+    return lastInstant.toLocalDateTime(dateZone(zone)).date
+}
+
+/** Whether this event occupies more than one calendar day in [zone]. */
+fun EventInstance.spansMultipleDays(zone: TimeZone): Boolean =
+    spanFirstDay(zone) != spanLastDay(zone)
+
+/**
+ * What an agenda row's time line should convey for an event on a given day —
+ * the part of a multi-day span that [day] falls in. Pure and shared so the
+ * agenda screen and the agenda widget label multi-day events identically; each
+ * surface only formats the instants into its own locale/24h string.
+ */
+sealed interface AgendaTimeLabel {
+    /** An all-day event, or a whole in-between day of a multi-day span. */
+    data object AllDay : AgendaTimeLabel
+    /** The first day of a multi-day timed event: when it begins. */
+    data class Starts(val start: Instant) : AgendaTimeLabel
+    /** The last day of a multi-day timed event: when it ends. */
+    data class Ends(val end: Instant) : AgendaTimeLabel
+    /** A single-day timed event: its start–end range. */
+    data class Range(val start: Instant, val end: Instant) : AgendaTimeLabel
+}
+
+/** The [AgendaTimeLabel] for [event] as it appears on [day], resolved in [zone]. */
+fun agendaTimeLabel(event: EventInstance, day: LocalDate, zone: TimeZone): AgendaTimeLabel {
+    if (event.isAllDay) return AgendaTimeLabel.AllDay
+    val firstDay = event.spanFirstDay(zone)
+    val lastDay = event.spanLastDay(zone)
+    return when {
+        firstDay == lastDay -> AgendaTimeLabel.Range(event.start, event.end)
+        day <= firstDay -> AgendaTimeLabel.Starts(event.start)
+        day >= lastDay -> AgendaTimeLabel.Ends(event.end)
+        else -> AgendaTimeLabel.AllDay // a full in-between day
+    }
+}
 
 /** One calendar day with at least one event, for the agenda list. */
 data class AgendaDay(
@@ -15,31 +76,69 @@ data class AgendaDay(
 
 /**
  * Group flat [instances] into forward-looking [AgendaDay]s (only days that
- * actually carry events). An event that began before [anchor] (ongoing or
- * multi-day) is clamped to the anchor day so it still surfaces on top. Within a
- * day, all-day events sort first, then ascending by start time, then title.
+ * actually carry events). A multi-day event surfaces on *every* day it spans,
+ * not just its first — clamped to [[anchor], [windowEnd]] so an event that began
+ * before the window (ongoing) still lists from the anchor day, and one running
+ * past the window stops at the last visible day. Within a day, all-day events
+ * sort first, then ascending by start time, then title.
  *
  * Shared by the Agenda screen and the agenda home-screen widget so both group
  * and order identically.
  */
 fun groupAgendaDays(
     anchor: LocalDate,
+    windowEnd: LocalDate,
     instances: List<EventInstance>,
     zone: TimeZone,
-): List<AgendaDay> =
-    instances
-        .groupBy { it.start.toLocalDateTime(zone).date.coerceAtLeast(anchor) }
-        .toSortedMap()
-        .map { (date, dayEvents) ->
-            AgendaDay(
-                date = date,
-                events = dayEvents.sortedWith(
-                    compareByDescending<EventInstance> { it.isAllDay }
-                        .thenBy { it.start }
-                        .thenBy { it.title },
-                ),
-            )
+): List<AgendaDay> {
+    val byDay = sortedMapOf<LocalDate, MutableList<EventInstance>>()
+    for (instance in instances) {
+        val firstDay = instance.spanFirstDay(zone).coerceAtLeast(anchor)
+        val lastDay = instance.spanLastDay(zone).coerceAtMost(windowEnd)
+        // Skip instances that don't actually occupy any day in [[anchor], [windowEnd]].
+        // The provider returns an event whenever its instant span overlaps the query
+        // window, but all-day events live at UTC midnights with an exclusive end: east
+        // of UTC that end dips just past local midnight, so *yesterday's* all-day event
+        // overlaps today's window start and comes back even though its true last day
+        // (resolved in UTC) is before the anchor. Clamping it up to the anchor would
+        // surface it under "today" (issue #65); drop it instead. The symmetric case —
+        // a next-day all-day event overlapping the window's last instant — drops too.
+        if (lastDay < firstDay) continue
+        var day = firstDay
+        while (day <= lastDay) {
+            byDay.getOrPut(day) { mutableListOf() }.add(instance)
+            day = day.plus(1, DateTimeUnit.DAY)
         }
+    }
+    return byDay.map { (date, dayEvents) ->
+        AgendaDay(
+            date = date,
+            events = dayEvents.sortedWith(
+                compareByDescending<EventInstance> { it.isAllDay }
+                    .thenBy { it.start }
+                    .thenBy { it.title },
+            ),
+        )
+    }
+}
+
+/**
+ * Ensure [today] surfaces as the first agenda day even when it carries no
+ * (remaining) events, by prepending an empty-event [AgendaDay] the agenda widget
+ * renders as a "nothing left today" placeholder. A no-op unless [enabled], and
+ * when today already has its own day in [days]. Keeps today anchored at the top
+ * so a glance tells today's events apart from a future day's (issue #35).
+ */
+fun anchorTodayIfMissing(
+    days: List<AgendaDay>,
+    today: LocalDate,
+    enabled: Boolean,
+): List<AgendaDay> =
+    if (enabled && days.none { it.date == today }) {
+        listOf(AgendaDay(today, emptyList())) + days
+    } else {
+        days
+    }
 
 /**
  * State for the Agenda view: a flat, forward-looking list of upcoming events
@@ -61,5 +160,12 @@ sealed interface AgendaUiState {
         val rangeEnd: LocalDate,
         /** Whether to show the top range bar — header + switcher (toggle, on by default). */
         val showRangeBar: Boolean,
+        /**
+         * The zone [days] were grouped in. Carried in the state rather than
+         * re-read by the screen so labelling and grouping cannot disagree: an
+         * event's "Starts …/Ends …/All day" line is only correct relative to the
+         * same zone that decided which day it was filed under.
+         */
+        val zone: TimeZone,
     ) : AgendaUiState
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaViewModel.kt

@@ -7,7 +7,7 @@ import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
 import de.jeanlucmakiola.calendula.data.prefs.PastEventDisplay
 import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.data.prefs.resolveFirstDay
+import de.jeanlucmakiola.calendula.data.prefs.firstDayOfWeek
 import de.jeanlucmakiola.calendula.domain.CalendarSource
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.FailureReason
@@ -20,13 +20,11 @@ import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.flatMapLatest
 import kotlinx.coroutines.flow.flowOn
-import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.datetime.DateTimeUnit
 import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.TimeZone
-import java.util.Locale
 import kotlinx.datetime.atStartOfDayIn
 import kotlinx.datetime.atTime
 import kotlinx.datetime.plus
@@ -51,8 +49,7 @@ class AgendaViewModel @Inject constructor(
     ) { range, showBar -> AgendaSettings(range, showBar) }
 
     // First day of the week, for the calendar-aligned "this week" range.
-    private val weekStartDay = settingsPrefs.weekStart
-        .map { it.resolveFirstDay(Locale.getDefault()) }
+    private val weekStartDay = settingsPrefs.firstDayOfWeek(viewModelScope)
 
     /**
      * How to treat events that already ended today (show / dim / hide). A display
@@ -66,6 +63,19 @@ class AgendaViewModel @Inject constructor(
             initialValue = PastEventDisplay.SHOW,
         )
 
+    /**
+     * Whether to keep today anchored at the top with a "nothing left today"
+     * placeholder even once it has no remaining events (#35). A display concern
+     * applied in the composition (after past-event filtering), so it rides
+     * alongside the data state like [pastEventDisplay] rather than re-querying.
+     */
+    val showToday: StateFlow<Boolean> = settingsPrefs.agendaShowToday
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5_000L),
+            initialValue = true,
+        )
+
     private val zone = TimeZone.currentSystemDefault()
 
     private val todayDate: LocalDate
@@ -146,11 +156,11 @@ class AgendaViewModel @Inject constructor(
             return AgendaUiState.Failure(FailureReason.NoCalendarsConfigured)
         }
         val anchor = params.anchor
-        val days = groupAgendaDays(anchor, instances, zone)
         val rangeEnd = anchor.plus(
             params.range.dayCount(anchor, params.weekStart) - 1,
             DateTimeUnit.DAY,
         )
+        val days = groupAgendaDays(anchor, rangeEnd, instances, zone)
         return AgendaUiState.Success(
             anchor = anchor,
             today = todayDate,
@@ -159,6 +169,7 @@ class AgendaViewModel @Inject constructor(
             rangeIsOverride = params.rangeIsOverride,
             rangeEnd = rangeEnd,
             showRangeBar = params.showRangeBar,
+            zone = zone,
         )
     }
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/calendars/CalendarsScreen.kt

@@ -93,6 +93,8 @@ import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
 import de.jeanlucmakiola.calendula.domain.CalendarSource
 import de.jeanlucmakiola.calendula.data.calendar.CalendarColorPalette
 import de.jeanlucmakiola.calendula.ui.common.CalendarColorChip
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
+import de.jeanlucmakiola.calendula.ui.common.eventFill
 import de.jeanlucmakiola.calendula.ui.common.LeadingAvatar
 import de.jeanlucmakiola.calendula.ui.common.SourceLogo
 import de.jeanlucmakiola.calendula.ui.common.curatedSourcePackage
@@ -108,7 +110,6 @@ import de.jeanlucmakiola.calendula.ui.common.ColorSwatchRow
 import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.floret.components.InlineTextField
 import de.jeanlucmakiola.floret.components.Position
-import de.jeanlucmakiola.floret.components.pastelize
 import java.time.LocalDate
 
 /** Sentinel [editorId] meaning "the editor is composing a new calendar". */
@@ -565,6 +566,7 @@ private fun CalendarEditor(
     var description by rememberSaveable(sessionKey) { mutableStateOf(initialDescription) }
     var confirmDelete by remember { mutableStateOf(false) }
     val dark = isSystemInDarkTheme()
+    val soften = LocalSoftenColors.current
 
     Scaffold(
         modifier = Modifier
@@ -624,7 +626,7 @@ private fun CalendarEditor(
                 .padding(horizontal = 16.dp, vertical = 8.dp),
             verticalArrangement = Arrangement.spacedBy(12.dp),
         ) {
-            EditorCard(icon = Icons.Default.CalendarMonth, iconTint = pastelize(color, dark)) {
+            EditorCard(icon = Icons.Default.CalendarMonth, iconTint = eventFill(color, dark, soften)) {
                 InlineTextField(
                     value = name,
                     onValueChange = { name = it },

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarColors.kt

@@ -14,16 +14,17 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.unit.dp
-import de.jeanlucmakiola.floret.components.pastelize
 
 /**
  * Leading avatar for a calendar: a neutral chip holding a calendar glyph tinted
- * in the calendar's (pastelised) colour. Shared by the calendar manager and the
- * visibility filter so they read identically.
+ * in the calendar's colour — softened to a pastel, or raw when the softener is
+ * off (issue #36). Shared by the calendar manager and the visibility filter so
+ * they read identically.
  */
 @Composable
 fun CalendarColorChip(color: Int, modifier: Modifier = Modifier) {
     val dark = isSystemInDarkTheme()
+    val soften = LocalSoftenColors.current
     Box(
         modifier = modifier
             .size(40.dp)
@@ -34,7 +35,7 @@ fun CalendarColorChip(color: Int, modifier: Modifier = Modifier) {
         Icon(
             Icons.Filled.CalendarMonth,
             contentDescription = null,
-            tint = pastelize(color, dark),
+            tint = eventFill(color, dark, soften),
             modifier = Modifier.size(22.dp),
         )
     }

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarPickerGroups.kt

@@ -11,7 +11,6 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Check
 import androidx.compose.material.icons.filled.Cloud
 import androidx.compose.material.icons.filled.PhoneAndroid
 import androidx.compose.material3.Icon
@@ -33,6 +32,7 @@ import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.domain.CalendarSource
 import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.floret.components.SelectedCheck
 
 /**
  * The app's single "which calendar" selection list, shared by the event editor
@@ -99,13 +99,7 @@ private fun CalendarPickerGroup(
             selected = isSelected,
             leading = { CalendarColorChip(calendar.color) },
             trailing = if (isSelected) {
-                {
-                    Icon(
-                        imageVector = Icons.Default.Check,
-                        contentDescription = null,
-                        tint = MaterialTheme.colorScheme.primary,
-                    )
-                }
+                { SelectedCheck() }
             } else {
                 null
             },

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarSwipe.kt

@@ -0,0 +1,79 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import androidx.compose.foundation.gestures.detectHorizontalDragGestures
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.unit.dp
+
+/**
+ * Drag distance that turns a calendar page, shared by the month, week and day
+ * views so all three answer a swipe at the same point.
+ *
+ * It was 6dp once, which is inside the distance a tap wanders: brushing the grid
+ * changed the month, and a page that turns on an unintended gesture reads as the
+ * animation misfiring rather than as the gesture being over-eager.
+ */
+val CALENDAR_SWIPE_THRESHOLD = 24.dp
+
+/**
+ * The whole-page horizontal swipe: one page per gesture, committed **the moment
+ * the drag clears [CALENDAR_SWIPE_THRESHOLD]** rather than when the finger lifts.
+ *
+ * Waiting for the lift meant the page sat still under a finger that had already
+ * travelled far enough to ask for it, and the answer only arrived once you let
+ * go — which reads as the view being slow rather than as a deliberate commit.
+ * Firing on the threshold is what makes the gesture feel like it is being
+ * followed. The trade is that a drag can no longer be taken back by dragging the
+ * other way; in practice, once you have moved 24dp deliberately you meant it, and
+ * the page you land on is one swipe back.
+ *
+ * Deliberately **horizontal-only**. The week and day timelines scroll vertically
+ * underneath this, and a two-dimensional detector here would claim those drags
+ * before the inner scroll ever saw them. As it is, a horizontal drag crosses this
+ * detector's slop while a vertical one is consumed below, and the two coexist.
+ * (The month view's split style needs a vertical axis as well, so it keeps its
+ * own axis-locking detector rather than using this.)
+ */
+@Composable
+fun rememberCalendarPageSwipe(
+    onSwipeNext: () -> Unit,
+    onSwipePrev: () -> Unit,
+): Modifier {
+    val threshold = with(LocalDensity.current) { CALENDAR_SWIPE_THRESHOLD.toPx() }
+    return Modifier.pointerInput(onSwipeNext, onSwipePrev) {
+        var accum = 0f
+        // One page per gesture: without this a long drag would keep re-firing
+        // every time the accumulator crossed the threshold again.
+        var fired = false
+        detectHorizontalDragGestures(
+            onDragStart = {
+                accum = 0f
+                fired = false
+            },
+            onDragEnd = {
+                accum = 0f
+                fired = false
+            },
+            onDragCancel = {
+                accum = 0f
+                fired = false
+            },
+            onHorizontalDrag = { _, drag ->
+                accum += drag
+                if (!fired) {
+                    val commit = when {
+                        accum < -threshold -> onSwipeNext
+                        accum > threshold -> onSwipePrev
+                        else -> null
+                    }
+                    if (commit != null) {
+                        fired = true
+                        commit()
+                    }
+                }
+            },
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitle.kt

@@ -0,0 +1,34 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import de.jeanlucmakiola.floret.locale.localizedDateFormatter
+import java.util.Locale
+
+/**
+ * Formats a calendar title (top bar or widget header): [skeleton]'s fields laid
+ * out in [locale]'s own order, with the year shown only when [date] falls outside
+ * [currentYear].
+ *
+ * Pass [skeleton] *without* a year field — "LLLL" for a month, "EEEdMMM" for a
+ * day. A skeleton is a field list, so wanting the year is just asking for one
+ * more field; the locale still decides where it lands ("July 2026" vs "2026年7月").
+ *
+ * Dropping the year in the current year is the one bit of policy here: the title
+ * sits directly above a grid that already says which year it is, and the year's
+ * *absence* is itself the signal that you're in the current one — it appears the
+ * moment you page out of it, which is when it starts carrying information.
+ *
+ * [forceYear] overrides that for titles whose [date] does not tell the whole
+ * story — a week view's title names only the month its *first* day falls in, so
+ * a week straddling New Year must still show the year even though [date] is in
+ * [currentYear].
+ */
+fun formatCalendarTitle(
+    date: java.time.LocalDate,
+    locale: Locale,
+    currentYear: Int,
+    skeleton: String,
+    forceYear: Boolean = false,
+): String {
+    val fields = if (date.year == currentYear && !forceYear) skeleton else skeleton + "y"
+    return localizedDateFormatter(locale, fields).format(date)
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarTransitions.kt

@@ -1,6 +1,7 @@
 package de.jeanlucmakiola.calendula.ui.common
 
 import androidx.compose.animation.ContentTransform
+import androidx.compose.animation.SizeTransform
 import androidx.compose.animation.core.FiniteAnimationSpec
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
@@ -23,9 +24,13 @@ import androidx.compose.ui.unit.IntOffset
  */
 
 /**
- * The M3 Expressive spatial spring used for the month/week slide: the *fast*
- * spring-physics spec from the active motion scheme — snappy with a subtle
- * springy settle, rather than a fixed easing curve.
+ * The M3 Expressive spatial spring used for the month/week/day slide: the
+ * *default* spring-physics spec from the active motion scheme, rather than a
+ * fixed easing curve.
+ *
+ * Default rather than fast: `fastSpatialSpec` is tuned for small, incidental
+ * movement, and driving a whole calendar page with it made the settle read as a
+ * twitch instead of a glide.
  *
  * Read it in a composable scope (this helper) so it can be captured by the
  * non-composable `AnimatedContent` transitionSpec lambda.
@@ -33,27 +38,34 @@ import androidx.compose.ui.unit.IntOffset
 @OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun rememberCalendarSlideSpec(): FiniteAnimationSpec<IntOffset> =
-    MaterialTheme.motionScheme.fastSpatialSpec()
+    MaterialTheme.motionScheme.defaultSpatialSpec()
 
 /**
- * The fast effects spec from the active motion scheme, for opacity (fade)
- * transitions. Captured in composable scope alongside [rememberCalendarSlideSpec]
- * for use in non-composable transition lambdas and as the reduced-motion fallback.
+ * The effects spec from the active motion scheme, for the opacity half of the
+ * transition. Captured in composable scope alongside [rememberCalendarSlideSpec]
+ * for use in non-composable transition lambdas, and reused on its own as the
+ * reduced-motion fallback.
+ *
+ * Opacity gets its own spec on purpose: M3 Expressive springs *position* and
+ * eases *opacity*, and a fade that bounced with the slide would shimmer.
  */
 @OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun rememberCalendarFadeSpec(): FiniteAnimationSpec<Float> =
-    MaterialTheme.motionScheme.fastEffectsSpec()
+    MaterialTheme.motionScheme.defaultEffectsSpec()
 
 /**
- * Horizontal slide for navigating between adjacent months/weeks/days.
+ * Navigating between adjacent months/weeks/days, as M3's shared-axis X: the
+ * outgoing page slides and fades one way while the incoming one arrives from the
+ * other, position on a spring and opacity on an easing curve.
  *
  * @param slideDir     +1 = forward (incoming from the right), -1 = back, 0 = jump
  *                     (e.g. "today"); a jump reuses the forward direction.
  * @param spec         spatial animation spec, typically [rememberCalendarSlideSpec].
- * @param fadeSpec     effects spec for the reduced-motion fade, typically
+ * @param fadeSpec     effects spec for the opacity half, and for the whole
+ *                     transition under reduced motion; typically
  *                     [rememberCalendarFadeSpec].
- * @param reduceMotion when true, swap the directional slide for a plain cross-fade.
+ * @param reduceMotion when true, drop the movement and cross-fade alone.
  */
 fun calendarSlideTransition(
     slideDir: Int,
@@ -65,6 +77,26 @@ fun calendarSlideTransition(
         return fadeIn(fadeSpec).togetherWith(fadeOut(fadeSpec))
     }
     val dir = if (slideDir == 0) 1 else slideDir
-    return slideInHorizontally(spec) { w -> dir * w }
-        .togetherWith(slideOutHorizontally(spec) { w -> -dir * w })
+    return ContentTransform(
+        targetContentEnter =
+            slideInHorizontally(spec) { w -> dir * w / SLIDE_TRAVEL_DIVISOR } + fadeIn(fadeSpec),
+        initialContentExit =
+            slideOutHorizontally(spec) { w -> -dir * w / SLIDE_TRAVEL_DIVISOR } + fadeOut(fadeSpec),
+        // AnimatedContent clips to the animating container by default, which
+        // shears the pages against the viewport edge as they pass. There is no
+        // size change here to contain — both pages are the same grid.
+        sizeTransform = SizeTransform(clip = false),
+    )
 }
+
+/**
+ * How far a page travels, as a fraction of the container width.
+ *
+ * A full width was the obvious reading of "paging", but the two pages are
+ * stacked and both opaque, so a full-width slide showed one grid racing across
+ * another — the movement carried the whole transition and had a long way to go.
+ * Under M3's shared-axis pattern the offset only has to *hint* the direction
+ * while the cross-fade does the swapping, so a fifth of the width is plenty and
+ * leaves nothing skating past.
+ */
+private const val SLIDE_TRAVEL_DIVISOR = 5

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/ColorSwatchRow.kt

@@ -18,15 +18,14 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
-import de.jeanlucmakiola.floret.components.pastelize
 
 /**
  * A wrapping row of round colour swatches; the one matching [selected] is
  * ringed and checked. Shared by the calendar editor and the event-colour
  * picker so both pick a colour the same way. Swatches render through
- * [pastelize] — the softened colour the app actually paints, not the raw hue.
+ * [eventFill] — the colour the app actually paints (softened, or raw when the
+ * softener is off, issue #36), not necessarily the stored hue.
  */
 @OptIn(ExperimentalLayoutApi::class)
 @Composable
@@ -37,16 +36,18 @@ fun ColorSwatchRow(
     dark: Boolean,
     modifier: Modifier = Modifier,
 ) {
+    val soften = LocalSoftenColors.current
     FlowRow(modifier = modifier, horizontalArrangement = Arrangement.spacedBy(12.dp)) {
         colors.forEach { argb ->
             val isSelected = argb == selected
+            val fill = eventFill(argb, dark, soften)
             Box(
                 contentAlignment = Alignment.Center,
                 modifier = Modifier
                     .padding(vertical = 4.dp)
                     .size(40.dp)
                     .clip(CircleShape)
-                    .background(pastelize(argb, dark))
+                    .background(fill)
                     .then(
                         if (isSelected) {
                             Modifier.border(2.dp, MaterialTheme.colorScheme.onSurface, CircleShape)
@@ -60,7 +61,7 @@ fun ColorSwatchRow(
                     Icon(
                         Icons.Default.Check,
                         contentDescription = null,
-                        tint = Color.Black.copy(alpha = 0.7f),
+                        tint = eventInk(fill, alpha = 0.7f),
                         modifier = Modifier.size(20.dp),
                     )
                 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/EventColors.kt

@@ -0,0 +1,46 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import androidx.compose.runtime.staticCompositionLocalOf
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.luminance
+import de.jeanlucmakiola.floret.components.pastelize
+
+/**
+ * Whether calendar/event colours are softened toward theme-fitting pastels
+ * before display (issue #36). Provided app-wide from the "soften colours"
+ * setting; the default `true` keeps the historical look. When off, the raw
+ * provider colour is painted verbatim — matching the sync source (DAVx5/CalDAV)
+ * and other calendar apps. Widgets live outside this composition and read the
+ * preference directly, then pass the flag to [eventFill] / [eventInk].
+ */
+val LocalSoftenColors = staticCompositionLocalOf { true }
+
+/**
+ * Display fill for an event chip/bar or a calendar tint: the [pastelize]d colour
+ * when [soften] is on, else the raw provider ARGB verbatim (forced opaque, since
+ * pastelize also returns an opaque colour).
+ */
+fun eventFill(rawArgb: Int, dark: Boolean, soften: Boolean): Color =
+    if (soften) pastelize(rawArgb, dark) else Color(rawArgb or 0xFF000000.toInt())
+
+/**
+ * Contrast ink (title text / glyph) for a filled chip painted with [eventFill]:
+ * white on a dark fill, near-black on a light one (issue #21). Applies to both
+ * softened and raw fills — a saturated hue (deep blue, purple, red) is
+ * perceptually dark even after softening pins its HSV value, so black text on it
+ * reads poorly. The choice is objective, not a tuned threshold: white wins only
+ * when it out-contrasts black against the fill, which (by the WCAG contrast
+ * ratio) is at relative luminance ≈ 0.18 — so mid and light colours keep
+ * near-black text. [alpha] carries the caller's soft emphasis.
+ */
+fun eventInk(fill: Color, alpha: Float = 0.8f): Color {
+    val useWhite = fill.luminance() < INK_LUMINANCE_CROSSOVER
+    return (if (useWhite) Color.White else Color.Black).copy(alpha = alpha)
+}
+
+/**
+ * Relative-luminance crossover where white text starts to out-contrast black.
+ * Solving `contrast(white, L) = contrast(black, L)` on the WCAG ratio gives
+ * `L = sqrt(1.05 * 0.05) - 0.05 ≈ 0.179`.
+ */
+private const val INK_LUMINANCE_CROSSOVER = 0.179f

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/EventFormFieldVisuals.kt

@@ -9,6 +9,7 @@ import androidx.compose.material.icons.filled.Notifications
 import androidx.compose.material.icons.filled.Palette
 import androidx.compose.material.icons.filled.People
 import androidx.compose.material.icons.filled.Place
+import androidx.compose.material.icons.filled.Public
 import androidx.compose.material.icons.filled.Repeat
 import androidx.compose.ui.graphics.vector.ImageVector
 import de.jeanlucmakiola.calendula.R
@@ -24,6 +25,7 @@ import de.jeanlucmakiola.calendula.domain.EventFormField
 fun eventFormFieldLabel(field: EventFormField): Int = when (field) {
     EventFormField.Location -> R.string.event_detail_location
     EventFormField.Description -> R.string.event_detail_description
+    EventFormField.Timezone -> R.string.event_detail_timezone
     EventFormField.Reminders -> R.string.event_detail_reminders
     EventFormField.Recurrence -> R.string.event_detail_recurrence
     EventFormField.Availability -> R.string.event_edit_availability
@@ -35,6 +37,7 @@ fun eventFormFieldLabel(field: EventFormField): Int = when (field) {
 fun eventFormFieldIcon(field: EventFormField): ImageVector = when (field) {
     EventFormField.Location -> Icons.Default.Place
     EventFormField.Description -> Icons.AutoMirrored.Filled.Notes
+    EventFormField.Timezone -> Icons.Default.Public
     EventFormField.Reminders -> Icons.Default.Notifications
     EventFormField.Recurrence -> Icons.Default.Repeat
     EventFormField.Availability -> Icons.Default.EventAvailable

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/LocaleSupport.kt

@@ -1,20 +0,0 @@
-package de.jeanlucmakiola.calendula.ui.common
-
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.remember
-import androidx.compose.ui.platform.LocalConfiguration
-import androidx.core.os.ConfigurationCompat
-import java.util.Locale
-
-/**
- * Current display [Locale], read observably from [LocalConfiguration] so the UI
- * recomposes after a locale change (lint: NonObservableLocale). Used for
- * weekday/month name formatting.
- */
-@Composable
-fun currentLocale(): Locale {
-    val configuration = LocalConfiguration.current
-    return remember(configuration) {
-        ConfigurationCompat.getLocales(configuration).get(0) ?: Locale.getDefault()
-    }
-}

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/Picker.kt

@@ -1,26 +1,13 @@
 package de.jeanlucmakiola.calendula.ui.common
 
 import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.ColumnScope
-import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
-import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Check
 import androidx.compose.material3.Checkbox
-import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.SegmentedButton
-import androidx.compose.material3.SegmentedButtonDefaults
-import androidx.compose.material3.SingleChoiceSegmentedButtonRow
-import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
@@ -29,16 +16,16 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.pluralStringResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import de.jeanlucmakiola.calendula.R
-import de.jeanlucmakiola.floret.components.DialogAmountField
+import de.jeanlucmakiola.floret.components.CustomAmountEditor
 import de.jeanlucmakiola.floret.components.FullScreenPicker
 import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.floret.components.SelectedCheck
 import de.jeanlucmakiola.floret.components.positionOf
 import de.jeanlucmakiola.floret.identity.collapseExit
 import de.jeanlucmakiola.floret.identity.expandEnter
@@ -195,61 +182,23 @@ private fun CustomReminderEditor(
     onConfirm: (Int) -> Unit,
 ) {
     val amount = amountText.toIntOrNull()?.takeIf { it in 1..999 }
-    Surface(
-        color = MaterialTheme.colorScheme.surfaceContainerHigh,
-        // A Position.Bottom shape: tight top corners meeting the row, full bottom.
-        shape = RoundedCornerShape(topStart = 6.dp, topEnd = 6.dp, bottomStart = 22.dp, bottomEnd = 22.dp),
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(horizontal = 16.dp),
-    ) {
-        Column(
-            modifier = Modifier.padding(16.dp),
-            verticalArrangement = Arrangement.spacedBy(16.dp),
-        ) {
-            // Unit toggle first so it stays visible above the keyboard once the
-            // amount field (the bottom row) is focused and scrolled into view.
-            SingleChoiceSegmentedButtonRow(modifier = Modifier.fillMaxWidth()) {
-                ReminderUnit.entries.forEachIndexed { index, entry ->
-                    SegmentedButton(
-                        selected = unit == entry,
-                        onClick = { onUnitChange(entry) },
-                        shape = SegmentedButtonDefaults.itemShape(index, ReminderUnit.entries.size),
-                        label = { Text(stringResource(reminderUnitLabel(entry))) },
-                    )
-                }
-            }
-            // Amount, a live preview of the lead time it resolves to, and Set —
-            // all on one row, sitting just above the keyboard.
-            Row(verticalAlignment = Alignment.CenterVertically) {
-                DialogAmountField(
-                    value = amountText,
-                    onValueChange = onAmountChange,
-                    placeholder = "10",
-                )
-                Spacer(Modifier.width(16.dp))
-                Text(
-                    text = amount?.let { reminderLeadTimeLabel(it * unit.minutesFactor) }
-                        ?: stringResource(R.string.reminder_custom_amount),
-                    style = MaterialTheme.typography.bodyLarge,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    modifier = Modifier.weight(1f),
-                )
-                Spacer(Modifier.width(16.dp))
-                FilledTonalButton(
-                    onClick = { amount?.let { onConfirm(it * unit.minutesFactor) } },
-                    enabled = amount != null,
-                ) {
-                    Text(stringResource(R.string.reminder_custom_set))
-                }
-            }
-        }
-    }
+    CustomAmountEditor(
+        amountText = amountText,
+        onAmountChange = onAmountChange,
+        unitLabels = ReminderUnit.entries.map { stringResource(reminderUnitLabel(it)) },
+        selectedUnit = unit.ordinal,
+        onUnitChange = { onUnitChange(ReminderUnit.entries[it]) },
+        preview = amount?.let { reminderLeadTimeLabel(it * unit.minutesFactor) }
+            ?: stringResource(R.string.reminder_custom_amount),
+        setLabel = stringResource(R.string.reminder_custom_set),
+        confirmEnabled = amount != null,
+        onConfirm = { amount?.let { onConfirm(it * unit.minutesFactor) } },
+    )
 }
 
 /** A short explanatory paragraph shown under a picker's title, above the rows. */
 @Composable
-private fun PickerDescription(text: String) {
+internal fun PickerDescription(text: String) {
     Text(
         text = text,
         style = MaterialTheme.typography.bodyMedium,
@@ -258,14 +207,6 @@ private fun PickerDescription(text: String) {
     )
 }
 
-@Composable
-private fun SelectedCheck() {
-    Icon(
-        imageVector = Icons.Default.Check,
-        contentDescription = null,
-        tint = MaterialTheme.colorScheme.primary,
-    )
-}
 
 /**
  * Agenda-range picker, full-screen. Two grouped lists — the calendar-aligned
@@ -364,41 +305,136 @@ private fun CustomDaysEditor(
 ) {
     val days = amountText.toIntOrNull()
         ?.takeIf { it in AgendaRange.MIN_CUSTOM_DAYS..AgendaRange.MAX_CUSTOM_DAYS }
-    Surface(
-        color = MaterialTheme.colorScheme.surfaceContainerHigh,
-        shape = RoundedCornerShape(topStart = 6.dp, topEnd = 6.dp, bottomStart = 22.dp, bottomEnd = 22.dp),
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(horizontal = 16.dp),
-    ) {
-        Row(
-            modifier = Modifier.padding(16.dp),
-            verticalAlignment = Alignment.CenterVertically,
+    CustomAmountEditor(
+        amountText = amountText,
+        onAmountChange = onAmountChange,
+        placeholder = "30",
+        preview = days?.let { pluralStringResource(R.plurals.agenda_range_days, it, it) }
+            ?: stringResource(R.string.agenda_range_custom_hint),
+        setLabel = stringResource(R.string.reminder_custom_set),
+        confirmEnabled = days != null,
+        onConfirm = { days?.let(onConfirm) },
+    )
+}
+
+/**
+ * Snooze-duration picker, full-screen and **single-select**: the [presets]
+ * (whole-minute delays) each sit as a checkmark row, with a "Custom" row that
+ * expands an inline amount field plus a Minutes/Hours unit toggle to enter an
+ * arbitrary delay. Mirrors [AgendaRangePicker]'s custom-expand pattern; picking
+ * a preset or confirming a custom value applies via [onSelect] and closes.
+ * [label] renders a delay in minutes as a duration ("10 minutes", "1 hour") and
+ * is reused for both the rows and the custom preview.
+ */
+@Composable
+fun SnoozeDurationPicker(
+    title: String,
+    presets: List<Int>,
+    selected: Int,
+    label: @Composable (Int) -> String,
+    onSelect: (Int) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    val customSelected = selected !in presets
+    val rowCount = presets.size + 1 // + the custom row
+
+    var customExpanded by rememberSaveable { mutableStateOf(false) }
+    var amountText by rememberSaveable {
+        mutableStateOf(if (customSelected) snoozeCustomAmount(selected).toString() else "")
+    }
+    var unit by rememberSaveable {
+        mutableStateOf(if (customSelected) snoozeCustomUnit(selected) else ReminderUnit.Minutes)
+    }
+
+    FullScreenPicker(title = title, onDismiss = onDismiss, predictiveBack = true) {
+        presets.forEachIndexed { index, minute ->
+            val isSelected = minute == selected
+            GroupedRow(
+                title = label(minute),
+                position = positionOf(index, rowCount),
+                selected = isSelected,
+                trailing = if (isSelected) {
+                    { SelectedCheck() }
+                } else {
+                    null
+                },
+                onClick = {
+                    onSelect(minute)
+                    onDismiss()
+                },
+            )
+        }
+        // The Custom row connects downward into the editor card when expanded, so
+        // the two read as one grouped container (the shared custom-expand pattern).
+        GroupedRow(
+            title = if (customSelected) label(selected) else stringResource(R.string.event_edit_reminder_custom),
+            position = if (customExpanded) Position.Top else positionOf(presets.size, rowCount),
+            selected = customSelected,
+            trailing = if (customSelected) {
+                { SelectedCheck() }
+            } else {
+                null
+            },
+            onClick = { customExpanded = !customExpanded },
+        )
+        AnimatedVisibility(
+            visible = customExpanded,
+            enter = expandEnter(),
+            exit = collapseExit(),
         ) {
-            DialogAmountField(
-                value = amountText,
-                onValueChange = onAmountChange,
-                placeholder = "30",
+            CustomSnoozeEditor(
+                amountText = amountText,
+                onAmountChange = { amountText = it },
+                unit = unit,
+                onUnitChange = { unit = it },
+                label = label,
+                onConfirm = { minutes ->
+                    onSelect(minutes)
+                    onDismiss()
+                },
             )
-            Spacer(Modifier.width(16.dp))
-            Text(
-                text = days?.let { pluralStringResource(R.plurals.agenda_range_days, it, it) }
-                    ?: stringResource(R.string.agenda_range_custom_hint),
-                style = MaterialTheme.typography.bodyLarge,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-                modifier = Modifier.weight(1f),
-            )
-            Spacer(Modifier.width(16.dp))
-            FilledTonalButton(
-                onClick = { days?.let(onConfirm) },
-                enabled = days != null,
-            ) {
-                Text(stringResource(R.string.reminder_custom_set))
-            }
         }
     }
 }
 
+/** Whole hours if the delay divides evenly, else minutes. */
+private fun snoozeCustomUnit(minutes: Int): ReminderUnit =
+    if (minutes % ReminderUnit.Hours.minutesFactor == 0) ReminderUnit.Hours else ReminderUnit.Minutes
+
+private fun snoozeCustomAmount(minutes: Int): Int =
+    if (minutes % ReminderUnit.Hours.minutesFactor == 0) minutes / ReminderUnit.Hours.minutesFactor else minutes
+
+/**
+ * The expanded "Custom" snooze editor: a tonal card connected to the Custom row
+ * above it. A Minutes/Hours unit toggle, an amount field with a live preview of
+ * the delay it resolves to, and a tonal confirm enabled only for a valid 1–999
+ * amount. [onConfirm] receives the final delay in minutes.
+ */
+@Composable
+private fun CustomSnoozeEditor(
+    amountText: String,
+    onAmountChange: (String) -> Unit,
+    unit: ReminderUnit,
+    onUnitChange: (ReminderUnit) -> Unit,
+    label: @Composable (Int) -> String,
+    onConfirm: (Int) -> Unit,
+) {
+    val units = remember { listOf(ReminderUnit.Minutes, ReminderUnit.Hours) }
+    val amount = amountText.toIntOrNull()?.takeIf { it in 1..999 }
+    CustomAmountEditor(
+        amountText = amountText,
+        onAmountChange = onAmountChange,
+        unitLabels = units.map { stringResource(reminderUnitLabel(it)) },
+        selectedUnit = units.indexOf(unit).coerceAtLeast(0),
+        onUnitChange = { onUnitChange(units[it]) },
+        preview = amount?.let { label(it * unit.minutesFactor) }
+            ?: stringResource(R.string.reminder_custom_amount),
+        setLabel = stringResource(R.string.reminder_custom_set),
+        confirmEnabled = amount != null,
+        onConfirm = { amount?.let { onConfirm(it * unit.minutesFactor) } },
+    )
+}
+
 /** Human label for an [AgendaRange] (used by the picker rows and settings summary). */
 @Composable
 fun agendaRangeLabel(range: AgendaRange): String = when (range) {

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/RecurrenceText.kt

@@ -9,6 +9,10 @@ import androidx.compose.ui.text.buildAnnotatedString
 import androidx.compose.ui.text.font.FontStyle
 import de.jeanlucmakiola.calendula.R
 import java.time.DayOfWeek
+import java.time.LocalDate
+import java.time.LocalDateTime
+import java.time.ZoneId
+import java.time.ZoneOffset
 import java.time.format.DateTimeFormatter
 import java.time.format.FormatStyle
 import java.time.format.TextStyle as JavaTextStyle
@@ -111,16 +115,36 @@ private fun rruleDayName(token: String, locale: Locale): String? {
 
 /** Parse an RRULE UNTIL value ("20261231" or "20261231T235959Z") to a localized date. */
 private fun parseUntilDate(raw: String, locale: Locale): String? {
-    val digits = raw.takeWhile { it.isDigit() }
-    if (digits.length < 8) return null
-    return try {
-        val date = java.time.LocalDate.of(
+    val date = untilLocalDate(raw) ?: return null
+    return DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale).format(date)
+}
+
+private val UNTIL_UTC_FORMAT: DateTimeFormatter =
+    DateTimeFormatter.ofPattern("yyyyMMdd'T'HHmmss'Z'", Locale.ROOT)
+
+/**
+ * The calendar day an RRULE UNTIL value denotes, *in the device's zone*.
+ *
+ * The UTC form ("20261231T225959Z") must be converted back before its date is
+ * read: `SimpleRecurrence.toRRule` writes the end of the chosen **local** day
+ * expressed in UTC, so for zones behind UTC that instant already falls on the
+ * following UTC date. Taking the leading digits straight off would then show
+ * the day after the one the user picked. Date-only and floating forms are
+ * already local and pass through unchanged.
+ */
+internal fun untilLocalDate(raw: String, zone: ZoneId = ZoneId.systemDefault()): LocalDate? {
+    val value = raw.trim()
+    return runCatching {
+        LocalDateTime.parse(value, UNTIL_UTC_FORMAT)
+            .atOffset(ZoneOffset.UTC)
+            .atZoneSameInstant(zone)
+            .toLocalDate()
+    }.recoverCatching {
+        val digits = value.takeWhile { it.isDigit() }
+        LocalDate.of(
             digits.substring(0, 4).toInt(),
             digits.substring(4, 6).toInt(),
             digits.substring(6, 8).toInt(),
         )
-        DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale).format(date)
-    } catch (e: Exception) {
-        null
-    }
+    }.getOrNull()
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/TimeZonePicker.kt

@@ -0,0 +1,267 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material.icons.filled.Public
+import androidx.compose.material.icons.filled.Search
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.produceState
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import de.jeanlucmakiola.calendula.R
+import de.jeanlucmakiola.calendula.domain.TimeZoneOption
+import de.jeanlucmakiola.calendula.domain.filterTimeZones
+import de.jeanlucmakiola.calendula.domain.timeZoneOptionOf
+import de.jeanlucmakiola.calendula.domain.timeZoneOptions
+import de.jeanlucmakiola.calendula.domain.zoneDescriptor
+import de.jeanlucmakiola.floret.components.FullScreenPicker
+import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.components.InlineTextField
+import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.floret.components.SelectedCheck
+import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.floret.locale.currentLocale
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+/**
+ * Full-screen zone picker: a query field over every zone the JVM knows, with the
+ * device zone and recently-picked ones pinned on top so the common case needs no
+ * typing. [selected] is the pinned zone id, or null when the event follows the
+ * device — picking the device row reports null back, which is what keeps an
+ * unpinned event unpinned rather than freezing it to today's zone.
+ *
+ * Unlike the kit's [de.jeanlucmakiola.floret.components.OptionPicker], this
+ * drives its own [LazyColumn] (hence `scrollable = false`): ~600 options is far
+ * past what an eagerly composed column can carry.
+ */
+@Composable
+fun TimeZonePickerDialog(
+    selected: String?,
+    deviceZoneId: String,
+    recents: List<String>,
+    onSelect: (String?) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    var query by rememberSaveable { mutableStateOf("") }
+    val locale = currentLocale()
+    // ~600 zones, each resolving a localized name and up to two ICU short names:
+    // far too much to run inside composition, so build it on a worker and let the
+    // list fill in a frame later. Filtering the built catalogue is cheap (its
+    // search keys are pre-normalized), so that stays here.
+    val allZones by produceState(initialValue = emptyList<TimeZoneOption>(), locale) {
+        value = withContext(Dispatchers.Default) {
+            timeZoneOptions(locale, regionOf = ::icuTimeZoneRegion)
+        }
+    }
+    val matches = remember(allZones, query) { filterTimeZones(allZones, query) }
+    val recentZones = remember(allZones, recents) {
+        recents.mapNotNull { id -> allZones.firstOrNull { it.id == id } }
+    }
+    // Resolved on its own rather than looked up in the catalogue: it's one zone,
+    // so it costs nothing, and the device row can then render complete on the
+    // first frame instead of showing a bare id until the catalogue lands.
+    val deviceSummary = remember(deviceZoneId, locale) {
+        timeZoneOptionOf(deviceZoneId, locale, regionOf = ::icuTimeZoneRegion)
+            ?.let { zoneDescriptor(it) }
+            ?: deviceZoneId
+    }
+    val searching = query.isNotBlank()
+
+    fun choose(zoneId: String?) {
+        onSelect(zoneId)
+        onDismiss()
+    }
+
+    FullScreenPicker(
+        title = stringResource(R.string.event_detail_timezone),
+        onDismiss = onDismiss,
+        scrollable = false,
+    ) {
+        SearchField(
+            query = query,
+            onQueryChange = { query = it },
+            modifier = Modifier.padding(horizontal = 16.dp, vertical = 8.dp),
+        )
+        LazyColumn(contentPadding = PaddingValues(top = 8.dp, bottom = 24.dp)) {
+            if (!searching) {
+                // The device row is the "unpinned" choice, so it reads as a mode
+                // rather than as a zone among zones — it stays out of the big
+                // list and never carries an offset.
+                item(key = "device") {
+                    GroupedRow(
+                        title = stringResource(R.string.event_edit_timezone_device),
+                        summary = deviceSummary,
+                        position = Position.Alone,
+                        selected = selected == null,
+                        leading = { Icon(Icons.Default.Public, contentDescription = null) },
+                        trailing = if (selected == null) {
+                            { SelectedCheck() }
+                        } else {
+                            null
+                        },
+                        onClick = { choose(null) },
+                    )
+                }
+                if (recentZones.isNotEmpty()) {
+                    item(key = "recent_header") {
+                        SectionHeader(stringResource(R.string.event_edit_timezone_recent))
+                    }
+                    itemsIndexed(
+                        items = recentZones,
+                        key = { _, zone -> "recent_${zone.id}" },
+                    ) { index, zone ->
+                        ZoneRow(
+                            zone = zone,
+                            position = positionOf(index, recentZones.size),
+                            selected = zone.id == selected,
+                            onClick = { choose(zone.id) },
+                        )
+                    }
+                }
+                item(key = "all_header") {
+                    SectionHeader(stringResource(R.string.event_edit_timezone_all))
+                }
+            }
+
+            // allZones.isNotEmpty() gates this: until the catalogue lands there is
+            // simply nothing to match yet, and claiming "no time zone matches"
+            // for that frame would be wrong.
+            if (searching && matches.isEmpty() && allZones.isNotEmpty()) {
+                item(key = "empty") {
+                    Text(
+                        text = stringResource(R.string.event_edit_timezone_none, query),
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        textAlign = TextAlign.Center,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 32.dp, vertical = 48.dp),
+                    )
+                }
+            }
+
+            itemsIndexed(
+                items = matches,
+                key = { _, zone -> "zone_${zone.id}" },
+            ) { index, zone ->
+                ZoneRow(
+                    zone = zone,
+                    position = positionOf(index, matches.size),
+                    selected = zone.id == selected,
+                    onClick = { choose(zone.id) },
+                )
+            }
+        }
+    }
+}
+
+/**
+ * The query box: the family's borderless [InlineTextField] over a tonal surface,
+ * so it reads like the rest of the app's inputs rather than a boxed Material
+ * field. The clear button rides inside the surface (unlike the search screen,
+ * which has a top bar to put it in) because the picker's bar is the title.
+ */
+@Composable
+private fun SearchField(
+    query: String,
+    onQueryChange: (String) -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    val keyboard = LocalSoftwareKeyboardController.current
+    // surfaceContainerHighest — the picker sits on surfaceContainerHigh, so
+    // anything lower vanishes into it.
+    Surface(
+        color = MaterialTheme.colorScheme.surfaceContainerHighest,
+        shape = RoundedCornerShape(28.dp),
+        modifier = modifier.fillMaxWidth(),
+    ) {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            modifier = Modifier.padding(horizontal = 16.dp),
+        ) {
+            Icon(
+                imageVector = Icons.Default.Search,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            InlineTextField(
+                value = query,
+                onValueChange = onQueryChange,
+                placeholder = stringResource(R.string.event_edit_timezone_search),
+                capitalization = KeyboardCapitalization.None,
+                imeAction = ImeAction.Search,
+                onImeAction = { keyboard?.hide() },
+                modifier = Modifier
+                    .weight(1f)
+                    .padding(horizontal = 12.dp, vertical = 14.dp),
+            )
+            if (query.isNotEmpty()) {
+                IconButton(onClick = { onQueryChange("") }) {
+                    Icon(
+                        imageVector = Icons.Default.Close,
+                        contentDescription = stringResource(R.string.search_clear),
+                        tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+        }
+    }
+}
+
+/** A small primary-coloured group label, matching the settings screens. */
+@Composable
+private fun SectionHeader(text: String) {
+    Text(
+        text = text,
+        style = MaterialTheme.typography.labelLarge,
+        color = MaterialTheme.colorScheme.primary,
+        modifier = Modifier.padding(start = 24.dp, end = 24.dp, top = 16.dp, bottom = 4.dp),
+    )
+}
+
+
+@Composable
+private fun ZoneRow(
+    zone: TimeZoneOption,
+    position: Position,
+    selected: Boolean,
+    onClick: () -> Unit,
+) {
+    GroupedRow(
+        title = zone.label,
+        summary = zoneDescriptor(zone),
+        position = position,
+        selected = selected,
+        trailing = if (selected) {
+            { SelectedCheck() }
+        } else {
+            null
+        },
+        onClick = onClick,
+    )
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/TimeZoneRegion.kt

@@ -0,0 +1,16 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import android.icu.util.TimeZone as IcuTimeZone
+
+/**
+ * The ISO 3166 region an IANA zone belongs to ("America/New_York" -> "US"), or
+ * null when ICU has none or maps it to the multi-country "001" ("Etc/UTC").
+ *
+ * This is the `android.icu`-backed bridge the pure-JVM
+ * [de.jeanlucmakiola.calendula.domain.timeZoneOptions] takes as `regionOf`, so
+ * it can ask ICU for a zone's abbreviation in that zone's own region — the only
+ * region for which ICU will surface it (see `resolveAbbreviation`). Lives here,
+ * not in `domain/`, precisely because it needs an Android import.
+ */
+fun icuTimeZoneRegion(id: String): String? =
+    runCatching { IcuTimeZone.getRegion(id) }.getOrNull()?.takeIf { it.length == 2 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/TodayAction.kt

@@ -0,0 +1,26 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Today
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import de.jeanlucmakiola.calendula.R
+
+/**
+ * The top-bar "jump to today" icon button, shared by every calendar view's app
+ * bar (#60). Shown in place of the fade-in FAB pill when the user moves the
+ * today control into the toolbar; renders nothing when [show] is false, so it
+ * drops straight into an app bar's `actions` slot without a wrapping condition.
+ */
+@Composable
+fun TodayAction(show: Boolean, onToday: () -> Unit) {
+    if (!show) return
+    IconButton(onClick = onToday) {
+        Icon(
+            imageVector = Icons.Default.Today,
+            contentDescription = stringResource(R.string.today_jump_action),
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/day/DayScreen.kt

@@ -5,7 +5,6 @@ import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.animateDpAsState
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.gestures.detectHorizontalDragGestures
 import androidx.compose.foundation.gestures.detectTapGestures
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Box
@@ -43,7 +42,6 @@ import androidx.compose.material3.rememberDrawerState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
@@ -68,8 +66,10 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.domain.EventInstance
+import de.jeanlucmakiola.calendula.ui.common.formatCalendarTitle
 import de.jeanlucmakiola.calendula.ui.common.CalendarDrawer
 import de.jeanlucmakiola.calendula.ui.common.CalendarFabColumn
+import de.jeanlucmakiola.calendula.ui.common.TodayAction
 import de.jeanlucmakiola.calendula.ui.common.CalendarFailure
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
@@ -77,11 +77,14 @@ import de.jeanlucmakiola.calendula.ui.common.NowLine
 import de.jeanlucmakiola.calendula.ui.common.ViewSwitcherPill
 import de.jeanlucmakiola.calendula.ui.common.calendarSlideTransition
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarFadeSpec
+import de.jeanlucmakiola.calendula.ui.common.rememberCalendarPageSwipe
 import de.jeanlucmakiola.floret.identity.rememberReduceMotion
 import de.jeanlucmakiola.calendula.ui.common.next
-import de.jeanlucmakiola.floret.components.pastelize
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
+import de.jeanlucmakiola.calendula.ui.common.eventFill
+import de.jeanlucmakiola.calendula.ui.common.eventInk
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarSlideSpec
-import de.jeanlucmakiola.calendula.ui.common.currentLocale
+import de.jeanlucmakiola.floret.locale.currentLocale
 import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.common.LocalShowHourLines
 import de.jeanlucmakiola.calendula.ui.common.formatHourLabel
@@ -91,12 +94,18 @@ import de.jeanlucmakiola.calendula.ui.week.TimedBlock
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import kotlinx.datetime.LocalDate
-import java.time.format.TextStyle as JavaTextStyle
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+import kotlin.time.Clock
 import java.util.Locale
 import kotlin.math.roundToInt
 
 private val HOUR_HEIGHT = 56.dp
 private val GUTTER_WIDTH = 48.dp
+/** Start inset for the gutter's hour labels so they centre on the top bar's
+ *  hamburger: with a 48dp gutter, 8dp lands the centre at 28dp (the app bar's
+ *  4dp inset + 24dp half icon button), matching the week view. */
+private val GUTTER_CONTENT_START_INSET = 8.dp
 private val MIN_EVENT_HEIGHT = 24.dp
 private val ALL_DAY_ROW_HEIGHT = 24.dp
 private val ALL_DAY_VERTICAL_PADDING = 6.dp
@@ -119,6 +128,7 @@ fun DayScreen(
     onCreateEvent: (LocalDate, Int?) -> Unit,
     quickSwitchViews: List<CalendarView> = IMPLEMENTED_VIEWS,
     drawerViewOrder: List<CalendarView> = IMPLEMENTED_VIEWS,
+    todayInToolbar: Boolean = false,
     modifier: Modifier = Modifier,
     initialDateIso: String? = null,
     viewModel: DayViewModel = hiltViewModel(),
@@ -151,6 +161,13 @@ fun DayScreen(
         else -> true
     }
 
+    // Drives whether the title carries the year. Falls back to the clock only
+    // while the first load is in flight, when there is no state to read today from.
+    val currentYear = when (val s = state) {
+        is DayUiState.Success -> s.today.year
+        else -> Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault()).date.year
+    }
+
     // Slide direction for the day transition: +1 = next, -1 = prev, 0 = jump.
     var slideDir by remember { mutableIntStateOf(0) }
     val goNext = { slideDir = 1; viewModel.goToNext() }
@@ -199,16 +216,19 @@ fun DayScreen(
             topBar = {
                 DayTopBar(
                     date = date,
+                    currentYear = currentYear,
                     selectedView = selectedView,
                     onCycleView = { onSelectView(selectedView.next(quickSwitchViews)) },
                     onOpenDrawer = { scope.launch { drawerState.open() } },
                     onOpenSearch = onOpenSearch,
+                    showTodayButton = todayInToolbar,
+                    onToday = jumpToToday,
                     scrollBehavior = scrollBehavior,
                 )
             },
             floatingActionButton = {
                 CalendarFabColumn(
-                    todayVisible = !isOnToday,
+                    todayVisible = !isOnToday && !todayInToolbar,
                     todayText = stringResource(R.string.day_today_action),
                     onToday = jumpToToday,
                     onCreate = { onCreateEvent(date, null) },
@@ -245,8 +265,6 @@ private fun DayContent(
     modifier: Modifier = Modifier,
 ) {
     val density = LocalDensity.current
-    val threshold = with(density) { 24.dp.toPx() }
-    var dragAccum by remember { mutableFloatStateOf(0f) }
     val slideSpec = rememberCalendarSlideSpec()
     val fadeSpec = rememberCalendarFadeSpec()
     val reduceMotion = rememberReduceMotion()
@@ -275,20 +293,7 @@ private fun DayContent(
     // Whole-page horizontal swipe, one level above the timeline's vertical
     // scroll: a horizontal drag crosses this detector's slop, while a vertical
     // drag is consumed by the inner scroll first — the two gestures coexist.
-    val swipeModifier = Modifier.pointerInput(Unit) {
-        detectHorizontalDragGestures(
-            onDragStart = { dragAccum = 0f },
-            onDragEnd = {
-                when {
-                    dragAccum < -threshold -> onSwipeNext()
-                    dragAccum > threshold -> onSwipePrev()
-                }
-                dragAccum = 0f
-            },
-            onDragCancel = { dragAccum = 0f },
-            onHorizontalDrag = { _, drag -> dragAccum += drag },
-        )
-    }
+    val swipeModifier = rememberCalendarPageSwipe(onSwipeNext, onSwipePrev)
 
     AnimatedContent(
         targetState = state,
@@ -354,16 +359,20 @@ private fun DaySuccess(
 @Composable
 private fun DayTopBar(
     date: LocalDate,
+    currentYear: Int,
     selectedView: CalendarView,
     onCycleView: () -> Unit,
     onOpenDrawer: () -> Unit,
     onOpenSearch: () -> Unit,
+    showTodayButton: Boolean,
+    onToday: () -> Unit,
     scrollBehavior: androidx.compose.material3.TopAppBarScrollBehavior,
 ) {
+    val locale = currentLocale()
     TopAppBar(
         title = {
             Text(
-                text = formatDayTitle(date),
+                text = formatDayTitle(date, locale, currentYear),
                 style = MaterialTheme.typography.titleLarge,
             )
         },
@@ -376,6 +385,7 @@ private fun DayTopBar(
             }
         },
         actions = {
+            TodayAction(show = showTodayButton, onToday = onToday)
             IconButton(onClick = onOpenSearch) {
                 Icon(
                     imageVector = Icons.Default.Search,
@@ -448,9 +458,11 @@ private fun AllDayBar(
     modifier: Modifier = Modifier,
 ) {
     val title = event.title.ifBlank { stringResource(R.string.event_untitled) }
+    val soften = LocalSoftenColors.current
+    val fill = eventFill(event.color, dark, soften)
     Box(
         modifier = modifier
-            .background(pastelize(event.color, dark), RoundedCornerShape(4.dp))
+            .background(fill, RoundedCornerShape(4.dp))
             .clickable(onClick = onClick)
             .padding(horizontal = 6.dp, vertical = 2.dp)
             .semantics { contentDescription = title },
@@ -461,7 +473,7 @@ private fun AllDayBar(
             style = MaterialTheme.typography.labelSmall,
             maxLines = 1,
             overflow = TextOverflow.Ellipsis,
-            color = Color.Black.copy(alpha = 0.8f),
+            color = eventInk(fill),
         )
     }
 }
@@ -484,10 +496,12 @@ private fun Timeline(
         // static, rounded-clipped window — the content scrolls inside it, so the
         // soft corners are permanent at any scroll position.
         Row(modifier = Modifier.fillMaxSize()) {
-            // Hour gutter (scrolls in sync with the day column)
+            // Hour gutter (scrolls in sync with the day column). Start inset so the
+            // labels centre on the top bar hamburger, matching the week view.
             Column(
                 modifier = Modifier
                     .width(GUTTER_WIDTH)
+                    .padding(start = GUTTER_CONTENT_START_INSET)
                     .fillMaxHeight()
                     .verticalScroll(scrollState),
             ) {
@@ -610,9 +624,11 @@ private fun EventBlock(
     val timeLabel = "${minToHm(block.startMin, use24Hour, locale)}–" +
         minToHm(block.endMin, use24Hour, locale)
     val showTime = block.endMin - block.startMin >= 45
+    val soften = LocalSoftenColors.current
+    val fill = eventFill(block.event.color, dark, soften)
     Box(
         modifier = modifier
-            .background(pastelize(block.event.color, dark), RoundedCornerShape(4.dp))
+            .background(fill, RoundedCornerShape(4.dp))
             .clickable(onClick = onClick)
             .padding(horizontal = 4.dp, vertical = 2.dp)
             .semantics { contentDescription = "$title, $timeLabel" },
@@ -623,7 +639,7 @@ private fun EventBlock(
                 style = MaterialTheme.typography.labelMedium,
                 maxLines = if (showTime) 1 else 2,
                 overflow = TextOverflow.Ellipsis,
-                color = Color.Black.copy(alpha = 0.85f),
+                color = eventInk(fill, alpha = 0.85f),
             )
             if (showTime) {
                 Text(
@@ -631,7 +647,7 @@ private fun EventBlock(
                     style = MaterialTheme.typography.labelSmall,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis,
-                    color = Color.Black.copy(alpha = 0.6f),
+                    color = eventInk(fill, alpha = 0.6f),
                 )
             }
         }
@@ -657,10 +673,10 @@ private fun DayLoading() {
 private fun minToHm(min: Int, is24Hour: Boolean, locale: Locale): String =
     formatMinuteOfDay(min, is24Hour, locale)
 
-private fun formatDayTitle(date: LocalDate): String {
-    val locale = Locale.getDefault()
-    val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
-    val weekday = java.dayOfWeek.getDisplayName(JavaTextStyle.SHORT, locale)
-    val monthName = java.month.getDisplayName(JavaTextStyle.SHORT, locale)
-    return "$weekday, ${date.day}. $monthName ${date.year}"
-}
+private fun formatDayTitle(date: LocalDate, locale: Locale, currentYear: Int): String =
+    formatCalendarTitle(
+        date = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day),
+        locale = locale,
+        currentYear = currentYear,
+        skeleton = "EEEdMMM",
+    )

app/src/main/java/de/jeanlucmakiola/calendula/ui/detail/EventDetailScreen.kt

@@ -32,6 +32,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.Notes
 import androidx.compose.material.icons.filled.CalendarMonth
+import androidx.compose.material.icons.filled.ContentCopy
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material.icons.filled.Notifications
@@ -87,25 +88,31 @@ import de.jeanlucmakiola.calendula.domain.AttendeeRelationship
 import de.jeanlucmakiola.calendula.domain.AttendeeStatus
 import de.jeanlucmakiola.calendula.domain.AttendeeType
 import de.jeanlucmakiola.calendula.domain.Availability
+import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.EventStatus
 import de.jeanlucmakiola.calendula.domain.RecurringWriteScope
 import de.jeanlucmakiola.calendula.domain.Reminder
+import de.jeanlucmakiola.calendula.domain.TimeZoneOption
+import de.jeanlucmakiola.calendula.domain.timeZoneOptionOf
+import de.jeanlucmakiola.calendula.domain.zoneDescriptor
 import de.jeanlucmakiola.floret.identity.predictiveBack
 import de.jeanlucmakiola.calendula.ui.common.CalendarFailure
+import de.jeanlucmakiola.calendula.ui.common.icuTimeZoneRegion
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
+import de.jeanlucmakiola.calendula.ui.common.eventFill
 import de.jeanlucmakiola.floret.components.OptionCard
-import de.jeanlucmakiola.calendula.ui.common.currentLocale
+import de.jeanlucmakiola.floret.locale.currentLocale
 import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.common.timeOfDayFormatter
-import de.jeanlucmakiola.floret.components.pastelize
 import de.jeanlucmakiola.calendula.ui.common.recurrenceText
 import de.jeanlucmakiola.calendula.ui.common.reminderLeadTimeLabel
 import kotlinx.coroutines.launch
 import kotlinx.datetime.TimeZone
+import kotlin.time.toJavaInstant
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.time.format.FormatStyle
-import java.time.format.TextStyle as JavaTextStyle
 import java.util.Locale
 import kotlin.time.Duration.Companion.seconds
 import kotlin.time.Instant
@@ -116,7 +123,10 @@ import kotlin.time.Instant
  * top-bar arrow both return to the calendar. Events in writable calendars can
  * be deleted (v1.1) and edited (v1.3) from here; [onEdit] opens the shared
  * event form for this occurrence — for recurring events the form asks how
- * far the change reaches when saving.
+ * far the change reaches when saving. [onDuplicate] opens the same form
+ * seeded with a copy of this event as a new, unsaved event (#52) — offered
+ * for any event, including read-only ones, since the copy lands in an
+ * editable calendar.
  */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -126,6 +136,7 @@ fun EventDetailScreen(
     endMillis: Long,
     onBack: () -> Unit,
     onEdit: () -> Unit,
+    onDuplicate: (EventForm) -> Unit,
     viewModel: EventDetailViewModel = hiltViewModel(),
 ) {
     LaunchedEffect(eventId, beginMillis, endMillis) {
@@ -160,15 +171,14 @@ fun EventDetailScreen(
     }
 
     // v1.0 installs only hold READ_CALENDAR; the first write asks for the
-    // upgrade in place. Granting continues straight into the tapped action.
-    var pendingEdit by remember { mutableStateOf(false) }
+    // upgrade in place. Granting continues straight into the tapped action —
+    // edit, delete, or duplicate — held here until the result comes back.
+    var pendingWrite by remember { mutableStateOf<(() -> Unit)?>(null) }
     val writePermissionLauncher = rememberLauncherForActivityResult(
         contract = ActivityResultContracts.RequestPermission(),
     ) { granted ->
-        if (granted) {
-            if (pendingEdit) onEdit() else showDeleteDialog = true
-        }
-        pendingEdit = false
+        if (granted) pendingWrite?.invoke()
+        pendingWrite = null
     }
     val hasWritePermission = {
         ContextCompat.checkSelfPermission(
@@ -176,21 +186,20 @@ fun EventDetailScreen(
             Manifest.permission.WRITE_CALENDAR,
         ) == PackageManager.PERMISSION_GRANTED
     }
-    val onDeleteClick = {
+    val requireWrite: (() -> Unit) -> Unit = { action ->
         if (hasWritePermission()) {
-            showDeleteDialog = true
+            action()
         } else {
-            pendingEdit = false
+            pendingWrite = action
             writePermissionLauncher.launch(Manifest.permission.WRITE_CALENDAR)
         }
     }
-    val onEditClick = {
-        if (hasWritePermission()) {
-            onEdit()
-        } else {
-            pendingEdit = true
-            writePermissionLauncher.launch(Manifest.permission.WRITE_CALENDAR)
-        }
+    val onDeleteClick = { requireWrite { showDeleteDialog = true } }
+    val onEditClick = { requireWrite(onEdit) }
+    // Duplicate reads the loaded detail into a create form and hands it up; the
+    // create still needs WRITE_CALENDAR even when the source is read-only.
+    val onDuplicateClick = {
+        requireWrite { viewModel.duplicateForm()?.let(onDuplicate) }
     }
 
     val deleteFailedMessage = stringResource(R.string.event_delete_failed)
@@ -229,7 +238,8 @@ fun EventDetailScreen(
                 },
                 actions = {
                     val s = state
-                    // Share works for any loaded event — it only reads the event.
+                    // Share and duplicate work for any loaded event — both only
+                    // read it; the duplicate is created into a writable calendar.
                     if (s is EventDetailUiState.Success) {
                         IconButton(onClick = onShareClick) {
                             Icon(
@@ -237,6 +247,15 @@ fun EventDetailScreen(
                                 contentDescription = stringResource(R.string.event_detail_share),
                             )
                         }
+                        IconButton(
+                            onClick = onDuplicateClick,
+                            enabled = deleteState != DeleteUiState.Deleting,
+                        ) {
+                            Icon(
+                                imageVector = Icons.Default.ContentCopy,
+                                contentDescription = stringResource(R.string.event_detail_duplicate),
+                            )
+                        }
                     }
                     // Edit/delete need a writable calendar — WebCal subscriptions,
                     // birthday calendars etc. are read-only at the provider level.
@@ -367,7 +386,7 @@ private fun EventDetailContent(state: EventDetailUiState.Success, modifier: Modi
     val instance = detail.instance
     val dark = isSystemInDarkTheme()
     val locale = currentDetailLocale()
-    val accent = pastelize(instance.color, dark)
+    val accent = eventFill(instance.color, dark, LocalSoftenColors.current)
 
     Column(
         modifier = modifier
@@ -438,14 +457,44 @@ private fun EventDetailContent(state: EventDetailUiState.Success, modifier: Modi
         }
 
         // Time zone — only when the event is timed and pinned to a zone other
-        // than the device's, so cross-zone events read unambiguously.
-        foreignTimeZoneLabel(detail.eventTimezone, instance.isAllDay, locale)?.let { tzLabel ->
+        // than the device's, so cross-zone events read unambiguously. It answers
+        // "when was it set", which the zone's name alone never did: an 8 AM New
+        // York call showing as 2 PM here should still say 8 AM somewhere.
+        //
+        // Same hierarchy as the When card above — the label carries the card,
+        // the time sits small beneath it. The local time is the one the reader
+        // acts on, so the original must stay quieter than it, not compete.
+        val foreignZone = remember(detail.eventTimezone, instance.isAllDay, instance.start, locale) {
+            foreignTimeZone(detail.eventTimezone, instance.isAllDay, locale, instance.start)
+        }
+        foreignZone?.let { zoneOption ->
             Spacer(Modifier.height(gap))
             DetailCard(
                 icon = Icons.Default.Public,
                 iconContentDescription = stringResource(R.string.event_detail_timezone),
             ) {
-                Text(text = tzLabel, style = MaterialTheme.typography.titleMedium)
+                // The id is the primary label ("Europe/Berlin"); the long
+                // localized name spelled next to it made the field too wide.
+                Text(text = zoneOption.label, style = MaterialTheme.typography.titleMedium)
+                // Beneath, small: the abbreviation plus the event's own-zone time,
+                // e.g. "CET · 8:00 AM – 9:00 AM". formatWhen puts the range in the
+                // secondary half only for a same-day event; one spanning midnight
+                // — which a cross-zone event easily does — carries the whole span
+                // in the primary instead, so fall back to it. If the zone can't be
+                // read back at all, drop to just the abbreviation + offset.
+                val originalTime = runCatching { TimeZone.of(zoneOption.id) }.getOrNull()
+                    ?.let { formatWhen(instance, it, locale) }
+                    ?.let { (primary, secondary) -> secondary ?: primary }
+                Spacer(Modifier.height(2.dp))
+                Text(
+                    text = if (originalTime != null) {
+                        "${zoneOption.shortName} · $originalTime"
+                    } else {
+                        zoneDescriptor(zoneOption)
+                    },
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
             }
         }
 
@@ -737,21 +786,30 @@ private fun attendeeRoleLabel(attendee: Attendee): Int? = when {
 private fun reminderLeadText(reminder: Reminder): String = reminderLeadTimeLabel(reminder.minutes)
 
 /**
- * A localized label for [tz] (e.g. "Central European Time (Europe/Berlin)"),
- * but only when the event is timed and pinned to a zone different from the
- * device's. Returns null when there's nothing worth showing.
+ * [tz] resolved as a [TimeZoneOption], but only when the event is timed and
+ * pinned to a zone different from the device's — the cases where showing it
+ * removes ambiguity. Null otherwise (all-day, device-zone, blank, or an id the
+ * tz database doesn't know).
+ *
+ * Resolved *at [at]*, the event's own start, not at "now": the abbreviation and
+ * offset both move with DST, and the card prints them next to the event's time.
+ * Resolving at now would label a July event "CET · 10:00 AM" when read in
+ * January — an abbreviation that contradicts the time beside it.
  */
-private fun foreignTimeZoneLabel(tz: String?, isAllDay: Boolean, locale: Locale): String? {
+private fun foreignTimeZone(
+    tz: String?,
+    isAllDay: Boolean,
+    locale: Locale,
+    at: Instant,
+): TimeZoneOption? {
     if (isAllDay || tz.isNullOrBlank()) return null
-    val deviceZone = ZoneId.systemDefault().id
-    if (tz == deviceZone) return null
-    return try {
-        val zone = ZoneId.of(tz)
-        val name = zone.getDisplayName(JavaTextStyle.FULL, locale)
-        if (name == tz) tz else "$name ($tz)"
-    } catch (e: Exception) {
-        tz
-    }
+    if (tz == ZoneId.systemDefault().id) return null
+    return timeZoneOptionOf(
+        tz,
+        locale,
+        at = at.toJavaInstant(),
+        regionOf = ::icuTimeZoneRegion,
+    )
 }
 
 /** Wrap http(s) URLs in [text] as tappable links tinted [linkColor]. */

app/src/main/java/de/jeanlucmakiola/calendula/ui/detail/EventDetailViewModel.kt

@@ -8,10 +8,12 @@ import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.calendar.NoSuchEventException
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
 import de.jeanlucmakiola.calendula.data.ics.IcsExporter
+import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.FailureReason
 import de.jeanlucmakiola.calendula.domain.RecurringWriteScope
 import de.jeanlucmakiola.calendula.domain.ics.IcsWriter
 import de.jeanlucmakiola.calendula.domain.ics.toShareIcsEvent
+import de.jeanlucmakiola.calendula.domain.toEditForm
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.withContext
 import kotlin.time.Clock
@@ -28,6 +30,7 @@ import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
+import kotlinx.datetime.TimeZone
 import kotlin.coroutines.cancellation.CancellationException
 import kotlin.time.Instant
 import javax.inject.Inject
@@ -138,16 +141,48 @@ class EventDetailViewModel @Inject constructor(
         }.getOrNull()
     }
 
+    /**
+     * Build a create form seeded from the open event so the user can save a
+     * copy as a new, independent event (#52). Returns null when nothing is
+     * loaded.
+     *
+     * The recurrence is dropped — a duplicate is a single event; anyone who
+     * wants a series can re-add one in the edit form that opens. The source
+     * calendar is kept only when it's writable, otherwise the id is cleared so
+     * the create resolves to the last-used/first-writable calendar — which lets
+     * a read-only event (a WebCal subscription, a birthday) be copied into an
+     * editable calendar. The occurrence's own times carry over unchanged.
+     */
+    fun duplicateForm(): EventForm? {
+        val loaded = state.value as? EventDetailUiState.Success ?: return null
+        val detail = loaded.detail
+        return detail.toEditForm(
+            beginMillis = detail.instance.start.toEpochMilliseconds(),
+            endMillis = detail.instance.end.toEpochMilliseconds(),
+            zone = TimeZone.currentSystemDefault(),
+        ).copy(
+            rrule = null,
+            calendarId = detail.instance.calendarId.takeIf { loaded.canModify },
+        )
+    }
+
     private suspend fun loadDetail(target: Target): EventDetailUiState = try {
         val detail = repository.eventDetail(target.eventId)
         // The Events row holds the series start; replace it with this
-        // occurrence's time so recurring events render correctly.
-        val corrected = detail.copy(
-            instance = detail.instance.copy(
-                start = Instant.fromEpochMilliseconds(target.beginMillis),
-                end = Instant.fromEpochMilliseconds(target.endMillis),
-            ),
-        )
+        // occurrence's time so recurring events render correctly. An external
+        // "open event" that names no occurrence ([NO_OCCURRENCE_TIME] — e.g. a
+        // bare content://.../events/<id> VIEW intent, issue #48) keeps the row's
+        // own DTSTART/DTEND instead of overriding it to the epoch.
+        val corrected = if (target.beginMillis == NO_OCCURRENCE_TIME) {
+            detail
+        } else {
+            detail.copy(
+                instance = detail.instance.copy(
+                    start = Instant.fromEpochMilliseconds(target.beginMillis),
+                    end = Instant.fromEpochMilliseconds(target.endMillis),
+                ),
+            )
+        }
         val calendar = repository.calendars().first()
             .firstOrNull { it.id == corrected.instance.calendarId }
         EventDetailUiState.Success(
@@ -168,6 +203,16 @@ class EventDetailViewModel @Inject constructor(
 
     /** A tapped occurrence: the series [eventId] plus this occurrence's own times. */
     private data class Target(val eventId: Long, val beginMillis: Long, val endMillis: Long)
+
+    companion object {
+        /**
+         * Sentinel begin/end for an "open this event" that names no occurrence —
+         * a bare `content://com.android.calendar/events/<id>` VIEW intent with no
+         * `EXTRA_EVENT_BEGIN_TIME` (issue #48). [loadDetail] then keeps the event
+         * row's own DTSTART/DTEND instead of overriding it to the epoch.
+         */
+        const val NO_OCCURRENCE_TIME: Long = Long.MIN_VALUE
+    }
 }
 
 /** A filesystem-safe `.ics` file name from an event title (or a fallback). */

app/src/main/java/de/jeanlucmakiola/calendula/ui/edit/EventEditScreen.kt

@@ -89,6 +89,7 @@ import androidx.compose.ui.graphics.isSpecified
 import androidx.compose.ui.graphics.Shape
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.pluralStringResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.TextStyle
@@ -97,7 +98,6 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.text.input.KeyboardCapitalization
 import androidx.compose.ui.text.input.KeyboardType
-import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.core.content.ContextCompat
 import androidx.hilt.navigation.compose.hiltViewModel
@@ -110,6 +110,9 @@ import de.jeanlucmakiola.calendula.domain.EventAttendee
 import de.jeanlucmakiola.calendula.domain.EventColorOption
 import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.EventFormField
+import de.jeanlucmakiola.calendula.domain.zoneDescriptor
+import de.jeanlucmakiola.calendula.domain.timeZoneOptionOf
+import de.jeanlucmakiola.calendula.domain.timesIn
 import de.jeanlucmakiola.calendula.domain.EventFormProblem
 import de.jeanlucmakiola.calendula.domain.RecurrenceEnd
 import de.jeanlucmakiola.calendula.domain.RecurrenceFreq
@@ -125,27 +128,33 @@ import de.jeanlucmakiola.calendula.data.calendar.CalendarColorPalette
 import de.jeanlucmakiola.calendula.ui.common.CalendarPickerGroups
 import de.jeanlucmakiola.calendula.ui.common.CalendarDatePickerDialog
 import de.jeanlucmakiola.calendula.ui.common.ColorSwatchRow
+import de.jeanlucmakiola.calendula.ui.common.TimeZonePickerDialog
+import de.jeanlucmakiola.calendula.ui.common.icuTimeZoneRegion
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
+import de.jeanlucmakiola.calendula.ui.common.eventFill
 import de.jeanlucmakiola.floret.components.DialogAmountField
 import de.jeanlucmakiola.floret.components.DialogUnitDropdown
 import de.jeanlucmakiola.calendula.ui.common.eventFormFieldIcon
 import de.jeanlucmakiola.calendula.ui.common.eventFormFieldLabel
 import de.jeanlucmakiola.floret.components.FullScreenPicker
 import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.components.GroupedSurface
 import de.jeanlucmakiola.calendula.ui.common.MILLIS_PER_DAY
 import de.jeanlucmakiola.floret.components.InlineTextField
 import de.jeanlucmakiola.floret.components.OptionCard
 import de.jeanlucmakiola.floret.components.OptionPicker
 import de.jeanlucmakiola.floret.components.Position
+import de.jeanlucmakiola.floret.components.SelectedCheck
+import de.jeanlucmakiola.floret.components.groupedShape as floretGroupedShape
 import de.jeanlucmakiola.floret.components.positionOf
 import de.jeanlucmakiola.calendula.ui.common.REMINDER_PRESETS
 import de.jeanlucmakiola.calendula.ui.common.TimePickerAlert
 import de.jeanlucmakiola.floret.reminders.ReminderUnit
-import de.jeanlucmakiola.calendula.ui.common.currentLocale
+import de.jeanlucmakiola.floret.locale.currentLocale
 import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.common.timeOfDayFormatter
 import de.jeanlucmakiola.calendula.ui.common.reminderLeadTimeLabel
 import de.jeanlucmakiola.calendula.ui.common.reminderUnitLabel
-import de.jeanlucmakiola.floret.components.pastelize
 import de.jeanlucmakiola.calendula.ui.common.recurrenceText
 import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
@@ -155,13 +164,14 @@ import kotlinx.datetime.TimeZone
 import kotlinx.datetime.isoDayNumber
 import kotlinx.datetime.toJavaDayOfWeek
 import kotlinx.datetime.toJavaLocalDate
-import kotlinx.datetime.toKotlinDayOfWeek
+import kotlinx.datetime.toInstant
 import kotlinx.datetime.toJavaLocalTime
 import kotlinx.datetime.toLocalDateTime
+import kotlin.time.toJavaInstant
+import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.time.format.FormatStyle
 import java.time.format.TextStyle as JavaTextStyle
-import java.time.temporal.WeekFields
 import java.util.Locale
 import kotlin.time.Clock
 
@@ -182,12 +192,14 @@ fun EventEditScreen(
     editKey: LongArray? = null,
     initialStartMinutes: Int? = null,
     initialForm: EventForm? = null,
+    initialFormSource: ImportSource = ImportSource.File,
     viewModel: EventEditViewModel = hiltViewModel(),
 ) {
     LaunchedEffect(initialDateIso, editKey, initialForm) {
         when {
-            // Single-event .ics open: the form arrives prefilled for review.
-            initialForm != null -> viewModel.openImported(initialForm)
+            // A prefilled open: a single-event .ics for review, or an external
+            // ACTION_INSERT intent. The source drives how reminders are seeded.
+            initialForm != null -> viewModel.openImported(initialForm, initialFormSource)
             editKey != null -> viewModel.openForEdit(
                 eventId = editKey[0],
                 beginMillis = editKey[1],
@@ -202,6 +214,7 @@ fun EventEditScreen(
     }
     val state by viewModel.state.collectAsStateWithLifecycle()
     val loadFailed by viewModel.loadFailed.collectAsStateWithLifecycle()
+    val importReminderPrompt by viewModel.importReminderPrompt.collectAsStateWithLifecycle()
 
     // The form is intentionally forgotten on every close (cancel or save) so
     // the next open starts clean; it survives rotation because openNew /
@@ -332,6 +345,56 @@ fun EventEditScreen(
             },
         )
     }
+
+    // A .ics import respects the file's reminders, but offers to swap in the
+    // configured default rather than silently deciding for the user (#49).
+    importReminderPrompt?.let { prompt ->
+        ImportReminderPromptDialog(
+            currentReminderCount = prompt.currentReminderCount,
+            onApply = viewModel::applyImportedReminderDefault,
+            onKeep = viewModel::dismissImportedReminderPrompt,
+        )
+    }
+}
+
+/**
+ * Offer to apply the settings default reminder to an event opened from a `.ics`
+ * file. The file's own reminders are kept unless the user accepts. A plain
+ * two-choice confirmation, so an [AlertDialog] (not a full-screen picker).
+ */
+@Composable
+private fun ImportReminderPromptDialog(
+    currentReminderCount: Int,
+    onApply: () -> Unit,
+    onKeep: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onKeep,
+        title = { Text(stringResource(R.string.import_reminder_prompt_title)) },
+        text = {
+            Text(
+                if (currentReminderCount == 0) {
+                    stringResource(R.string.import_reminder_prompt_body_none)
+                } else {
+                    pluralStringResource(
+                        R.plurals.import_reminder_prompt_body_existing,
+                        currentReminderCount,
+                        currentReminderCount,
+                    )
+                },
+            )
+        },
+        confirmButton = {
+            TextButton(onClick = onApply) {
+                Text(stringResource(R.string.import_reminder_prompt_apply))
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onKeep) {
+                Text(stringResource(R.string.import_reminder_prompt_keep))
+            }
+        },
+    )
 }
 
 /**
@@ -440,6 +503,7 @@ private fun EventEditContent(
 ) {
     val form = state.form
     val locale = currentLocale()
+    val firstDayOfWeek by viewModel.firstDayOfWeek.collectAsStateWithLifecycle()
     val dark = isSystemInDarkTheme()
     // The title, date and recurrence are managed by the special-dates sync, so
     // they're locked here; everything else (reminders, location, notes) is the
@@ -451,6 +515,7 @@ private fun EventEditContent(
     var showRecurrencePicker by rememberSaveable { mutableStateOf(false) }
     var showVisibilityPicker by rememberSaveable { mutableStateOf(false) }
     var showColorPicker by rememberSaveable { mutableStateOf(false) }
+    var showTimezonePicker by rememberSaveable { mutableStateOf(false) }
     var showFieldPicker by rememberSaveable { mutableStateOf(false) }
 
     // Pick a guest from contacts: a one-shot system picker returning the chosen
@@ -487,7 +552,8 @@ private fun EventEditContent(
     val selectedCalendar = state.calendars.firstOrNull { it.id == form.calendarId }
     // The accent ties the form to the detail screen's design language: the
     // bar under the title takes the target calendar's colour.
-    val accent = selectedCalendar?.let { pastelize(it.color, dark) }
+    val soften = LocalSoftenColors.current
+    val accent = selectedCalendar?.let { eventFill(it.color, dark, soften) }
         ?: MaterialTheme.colorScheme.primary
     val gap = 12.dp
 
@@ -614,19 +680,42 @@ private fun EventEditContent(
                     color = MaterialTheme.colorScheme.error,
                 )
             }
+            // The rows above edit a pinned event in *its own* zone, which is the
+            // time it was set at — but that says nothing about when it lands for
+            // whoever is reading it. Spell the local equivalent out rather than
+            // leaving the user to do the offset arithmetic. Absent (null) unless
+            // the event is pinned somewhere other than here.
+            // Keyed rather than recomputed: this sits in the same Column as the
+            // title field, so it would otherwise re-parse the zone on every
+            // keystroke.
+            val localTimes = remember(form.timezone, form.start, form.end, form.isAllDay) {
+                form.timesIn(TimeZone.currentSystemDefault())
+            }
+            localTimes?.let { (localStart, localEnd) ->
+                Spacer(Modifier.height(2.dp))
+                Text(
+                    text = stringResource(
+                        R.string.event_edit_timezone_local_time,
+                        formatTimeRange(localStart, localEnd, locale),
+                    ),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
         }
 
         Spacer(Modifier.height(gap))
 
-        // Calendar card — tap anywhere to pick the target calendar. Editing
-        // keeps the owning calendar (moving events between calendars is a
-        // sync-adapter minefield; every stock calendar app locks it too).
+        // Calendar card — tap anywhere to pick the target calendar. Picking a
+        // different one while editing *moves* the event (copy+delete on save,
+        // since CALENDAR_ID can't be updated in place). Managed special-dates
+        // events stay locked: the contact sync owns their calendar.
         EditCard(
             icon = Icons.Default.CalendarMonth,
             iconContentDescription = stringResource(R.string.event_detail_calendar),
             iconTint = accent,
             onClick = { showCalendarPicker = true }
-                .takeIf { state.calendars.isNotEmpty() && !state.isEditing },
+                .takeIf { state.calendars.isNotEmpty() && !state.isManaged },
         ) {
             Text(
                 text = selectedCalendar?.displayName
@@ -649,6 +738,54 @@ private fun EventEditContent(
 
         // Optional sections: which ones render by default is a setting; the
         // rest unfold behind the "more fields" button below.
+        OptionalFormSection(visible = EventFormField.Timezone in state.visibleFields) {
+            Spacer(Modifier.height(gap))
+            EditCard(
+                icon = Icons.Default.Public,
+                iconContentDescription = null,
+                onClick = { showTimezonePicker = true },
+            ) {
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    modifier = Modifier.fillMaxWidth(),
+                ) {
+                    // Resolved at the event's own start, not at "now": the
+                    // abbreviation and offset shown ("CEST · GMT+02:00") must be
+                    // the ones that apply when the event actually happens.
+                    val pinned = remember(form.timezone, form.start, locale) {
+                        form.timezone
+                            ?.let { id -> runCatching { id to TimeZone.of(id) }.getOrNull() }
+                            ?.let { (id, zone) ->
+                                timeZoneOptionOf(
+                                    id,
+                                    locale,
+                                    at = form.start.toInstant(zone).toJavaInstant(),
+                                    regionOf = ::icuTimeZoneRegion,
+                                )
+                            }
+                    }
+                    Column(modifier = Modifier.weight(1f)) {
+                        Text(
+                            text = pinned?.label
+                                ?: stringResource(R.string.event_edit_timezone_device),
+                            style = MaterialTheme.typography.titleMedium,
+                        )
+                        Text(
+                            text = pinned?.let { zoneDescriptor(it) }
+                                ?: stringResource(R.string.event_edit_timezone_device_summary),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        )
+                    }
+                    Icon(
+                        imageVector = Icons.Default.ArrowDropDown,
+                        contentDescription = null,
+                        tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+            }
+        }
+
         OptionalFormSection(visible = EventFormField.Location in state.visibleFields) {
             Spacer(Modifier.height(gap))
             EditCard(
@@ -838,7 +975,7 @@ private fun EventEditContent(
                 icon = Icons.Default.Palette,
                 iconContentDescription = stringResource(R.string.event_edit_color),
                 iconTint = if (colorSupported && swatch != null) {
-                    pastelize(swatch, dark)
+                    eventFill(swatch, dark, soften)
                 } else {
                     MaterialTheme.colorScheme.onSurfaceVariant
                 },
@@ -1005,6 +1142,7 @@ private fun EventEditContent(
         RecurrencePickerDialog(
             current = form.rrule,
             startDay = form.start.date.dayOfWeek,
+            firstDayOfWeek = firstDayOfWeek,
             onSelect = { rrule ->
                 viewModel.setRecurrence(rrule)
                 showRecurrencePicker = false
@@ -1024,6 +1162,16 @@ private fun EventEditContent(
         )
     }
 
+    if (showTimezonePicker) {
+        TimeZonePickerDialog(
+            selected = form.timezone,
+            deviceZoneId = ZoneId.systemDefault().id,
+            recents = state.recentTimeZones,
+            onSelect = viewModel::setTimezone,
+            onDismiss = { showTimezonePicker = false },
+        )
+    }
+
     if (showColorPicker) {
         ColorPickerDialog(
             palette = state.colorPalette,
@@ -1166,6 +1314,7 @@ private enum class RecurrenceEndMode { Never, Until, Count }
 private fun RecurrencePickerDialog(
     current: String?,
     startDay: DayOfWeek,
+    firstDayOfWeek: DayOfWeek,
     onSelect: (String?) -> Unit,
     onDismiss: () -> Unit,
 ) {
@@ -1200,8 +1349,21 @@ private fun RecurrencePickerDialog(
 
     val locale = currentLocale()
     val untilDate = untilIso?.let { runCatching { LocalDate.parse(it) }.getOrNull() }
-    val interval = intervalText.toIntOrNull()?.takeIf { it in 1..999 }
-    val count = countText.toIntOrNull()?.takeIf { it in 1..999 }
+    // remember() must not sit behind the ?. — a slot that appears and disappears
+    // as a date is picked breaks Compose's positional memoisation. Format
+    // unconditionally and let the null fall through to a null summary.
+    val untilSummary = remember(untilDate, locale) {
+        untilDate?.let {
+            DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM)
+                .withLocale(locale).format(it.toJavaLocalDate())
+        }
+    }
+    // A blank amount field shows its placeholder ("1" / "10") greyed out, so read
+    // blank as that default rather than as an error — otherwise simply clearing
+    // the field silently greys out OK. Only a real out-of-range value (0) is
+    // invalid, and that's the one case the read-out below reports.
+    val interval = if (intervalText.isBlank()) 1 else intervalText.toIntOrNull()?.takeIf { it in 1..999 }
+    val count = if (countText.isBlank()) 10 else countText.toIntOrNull()?.takeIf { it in 1..999 }
     val customEnd: RecurrenceEnd? = when (endMode) {
         RecurrenceEndMode.Never -> RecurrenceEnd.Never
         RecurrenceEndMode.Until -> untilDate?.let { RecurrenceEnd.Until(it) }
@@ -1237,6 +1399,11 @@ private fun RecurrencePickerDialog(
                 title = stringResource(R.string.event_edit_recurrence_none),
                 position = positionOf(0, rowCount),
                 selected = current == null,
+                trailing = if (current == null) {
+                    { SelectedCheck() }
+                } else {
+                    null
+                },
                 onClick = { onSelect(null) },
             )
             RecurrenceFreq.entries.forEachIndexed { index, entry ->
@@ -1244,6 +1411,11 @@ private fun RecurrencePickerDialog(
                     title = stringResource(recurrencePresetLabel(entry)),
                     position = positionOf(index + 1, rowCount),
                     selected = isPlainPreset && parsed?.freq == entry,
+                    trailing = if (isPlainPreset && parsed?.freq == entry) {
+                        { SelectedCheck() }
+                    } else {
+                        null
+                    },
                     onClick = { onSelect(SimpleRecurrence(entry).toRRule()) },
                 )
             }
@@ -1251,88 +1423,195 @@ private fun RecurrencePickerDialog(
                 title = stringResource(R.string.event_edit_recurrence_custom),
                 position = positionOf(rowCount - 1, rowCount),
                 selected = current != null && !isPlainPreset,
+                trailing = if (current != null && !isPlainPreset) {
+                    { SelectedCheck() }
+                } else {
+                    null
+                },
                 onClick = { customMode = true },
             )
         } else {
-            Column(
-                verticalArrangement = Arrangement.spacedBy(8.dp),
-                modifier = Modifier.padding(horizontal = 24.dp),
-            ) {
-                Row(verticalAlignment = Alignment.CenterVertically) {
-                    Text(
-                        text = stringResource(R.string.event_edit_recurrence_every),
-                        style = MaterialTheme.typography.titleMedium,
-                    )
-                    Spacer(Modifier.width(12.dp))
-                    DialogAmountField(
-                        value = intervalText,
-                        onValueChange = { intervalText = it },
-                        placeholder = "1",
-                    )
-                    Spacer(Modifier.width(12.dp))
-                    DialogUnitDropdown(
-                        label = stringResource(recurrenceUnitLabel(freq)),
-                        entries = RecurrenceFreq.entries.map {
-                            stringResource(recurrenceUnitLabel(it))
-                        },
-                        onPick = { freq = RecurrenceFreq.entries[it] },
-                    )
-                }
-                if (freq == RecurrenceFreq.Weekly) {
-                    WeekdayToggleRow(
-                        selected = daysMask.toDaySet(),
-                        onToggle = { day -> daysMask = daysMask xor day.toMaskBit() },
-                        locale = locale,
-                    )
-                }
+            // Section gaps live on each block (not a parent spacedBy) so the
+            // weekday card's gap collapses *with* it under AnimatedVisibility —
+            // a parent arrangement would leave a residual gap that snaps shut.
+            Column(modifier = Modifier.fillMaxWidth()) {
+                // A live, human-readable read-out of the rule being built, so the
+                // effect of the controls below is never a guess. It renders
+                // *[customResult] itself* — the exact string OK would save — so it
+                // can never describe a different rule than the one that lands. When
+                // the form can't produce a rule, it says why instead of falling
+                // back to defaults and quietly disagreeing with the controls.
+                // minLines reserves the second line up front: without it the whole
+                // stack below shifts a line as the phrase grows with each weekday.
                 Text(
-                    text = stringResource(R.string.event_edit_recurrence_ends),
-                    style = MaterialTheme.typography.bodyMedium,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    text = customResult?.let { recurrenceText(it, locale) }
+                        ?: AnnotatedString(
+                            stringResource(R.string.event_edit_recurrence_incomplete),
+                        ),
+                    style = MaterialTheme.typography.titleMedium,
+                    color = if (customResult != null) {
+                        MaterialTheme.colorScheme.onSurface
+                    } else {
+                        MaterialTheme.colorScheme.error
+                    },
+                    minLines = 2,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(horizontal = 16.dp),
                 )
-            }
-            GroupedRow(
-                title = stringResource(R.string.event_edit_recurrence_end_never),
-                position = positionOf(0, 3),
-                selected = endMode == RecurrenceEndMode.Never,
-                onClick = { endMode = RecurrenceEndMode.Never },
-            )
-            GroupedRow(
-                title = stringResource(R.string.event_edit_recurrence_end_until),
-                summary = untilDate?.let {
-                    remember(it, locale) {
-                        DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM)
-                            .withLocale(locale).format(it.toJavaLocalDate())
-                    }
-                },
-                position = positionOf(1, 3),
-                selected = endMode == RecurrenceEndMode.Until,
-                onClick = {
-                    endMode = RecurrenceEndMode.Until
-                    showUntilPicker = true
-                },
-            )
-            GroupedRow(
-                title = stringResource(R.string.event_edit_recurrence_end_count),
-                position = positionOf(2, 3),
-                selected = endMode == RecurrenceEndMode.Count,
-                onClick = { endMode = RecurrenceEndMode.Count },
-            )
-            if (endMode == RecurrenceEndMode.Count) {
-                Row(
-                    verticalAlignment = Alignment.CenterVertically,
-                    modifier = Modifier.padding(horizontal = 24.dp, vertical = 4.dp),
+
+                // How often: an interval amount plus a frequency segmented row —
+                // all four units on show, no unit hidden behind a dropdown.
+                GroupedSurface(
+                    position = Position.Alone,
+                    modifier = Modifier
+                        .padding(top = 16.dp)
+                        .padding(horizontal = 16.dp),
                 ) {
-                    DialogAmountField(
-                        value = countText,
-                        onValueChange = { countText = it },
-                        placeholder = "10",
-                    )
-                    Spacer(Modifier.width(12.dp))
+                    Column(
+                        modifier = Modifier.padding(16.dp),
+                        verticalArrangement = Arrangement.spacedBy(16.dp),
+                    ) {
+                        Row(verticalAlignment = Alignment.CenterVertically) {
+                            Text(
+                                text = stringResource(R.string.event_edit_recurrence_every),
+                                style = MaterialTheme.typography.titleMedium,
+                            )
+                            Spacer(Modifier.width(12.dp))
+                            DialogAmountField(
+                                value = intervalText,
+                                onValueChange = { intervalText = it },
+                                placeholder = "1",
+                            )
+                        }
+                        SingleChoiceSegmentedButtonRow(modifier = Modifier.fillMaxWidth()) {
+                            RecurrenceFreq.entries.forEachIndexed { index, entry ->
+                                SegmentedButton(
+                                    selected = freq == entry,
+                                    onClick = { freq = entry },
+                                    shape = SegmentedButtonDefaults.itemShape(
+                                        index, RecurrenceFreq.entries.size,
+                                    ),
+                                    // Drop the default check-icon slot: four segments
+                                    // share one row, and its reserved width is what
+                                    // pushes longer labels ("Monate", "Wochen") into
+                                    // an ellipsis on a compact screen. Selection is
+                                    // already carried by the segment's fill.
+                                    icon = {},
+                                    label = {
+                                        Text(
+                                            text = stringResource(recurrenceUnitLabel(entry)),
+                                            maxLines = 1,
+                                        )
+                                    },
+                                )
+                            }
+                        }
+                    }
+                }
+
+                // Weekday picks — only meaningful on a weekly rule. The 16dp gap
+                // sits inside the animated block so it grows/shrinks with the card.
+                AnimatedVisibility(
+                    visible = freq == RecurrenceFreq.Weekly,
+                    enter = expandEnter(),
+                    exit = collapseExit(),
+                ) {
+                    GroupedSurface(
+                        position = Position.Alone,
+                        modifier = Modifier
+                            .padding(top = 16.dp)
+                            .padding(horizontal = 16.dp),
+                    ) {
+                        WeekdayToggleRow(
+                            selected = daysMask.toDaySet(),
+                            onToggle = { day -> daysMask = daysMask xor day.toMaskBit() },
+                            locale = locale,
+                            firstDay = firstDayOfWeek,
+                            modifier = Modifier.padding(16.dp),
+                        )
+                    }
+                }
+
+                // Ends: a connected never / on-a-date / after-N group, the count
+                // field folding into the bottom of the run when chosen.
+                Column(modifier = Modifier.padding(top = 16.dp)) {
                     Text(
-                        text = stringResource(R.string.event_edit_recurrence_times),
-                        style = MaterialTheme.typography.titleMedium,
+                        text = stringResource(R.string.event_edit_recurrence_ends),
+                        style = MaterialTheme.typography.labelLarge,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(start = 16.dp, bottom = 8.dp),
                     )
+                    GroupedRow(
+                        title = stringResource(R.string.event_edit_recurrence_end_never),
+                        position = Position.Top,
+                        selected = endMode == RecurrenceEndMode.Never,
+                        trailing = if (endMode == RecurrenceEndMode.Never) {
+                            { SelectedCheck() }
+                        } else {
+                            null
+                        },
+                        onClick = { endMode = RecurrenceEndMode.Never },
+                    )
+                    GroupedRow(
+                        title = stringResource(R.string.event_edit_recurrence_end_until),
+                        summary = untilSummary,
+                        position = Position.Middle,
+                        selected = endMode == RecurrenceEndMode.Until,
+                        trailing = if (endMode == RecurrenceEndMode.Until) {
+                            { SelectedCheck() }
+                        } else {
+                            null
+                        },
+                        onClick = {
+                            endMode = RecurrenceEndMode.Until
+                            showUntilPicker = true
+                        },
+                    )
+                    GroupedRow(
+                        title = stringResource(R.string.event_edit_recurrence_end_count),
+                        position = if (endMode == RecurrenceEndMode.Count) {
+                            Position.Middle
+                        } else {
+                            Position.Bottom
+                        },
+                        selected = endMode == RecurrenceEndMode.Count,
+                        trailing = if (endMode == RecurrenceEndMode.Count) {
+                            { SelectedCheck() }
+                        } else {
+                            null
+                        },
+                        onClick = { endMode = RecurrenceEndMode.Count },
+                    )
+                    // Animated for the same reason the weekday card is: this is the
+                    // picker's other collapsible block, and a bare `if` here made
+                    // the ends group snap while the card above it glided.
+                    AnimatedVisibility(
+                        visible = endMode == RecurrenceEndMode.Count,
+                        enter = expandEnter(),
+                        exit = collapseExit(),
+                    ) {
+                        GroupedSurface(
+                            position = Position.Bottom,
+                            modifier = Modifier.padding(horizontal = 16.dp),
+                        ) {
+                            Row(
+                                verticalAlignment = Alignment.CenterVertically,
+                                modifier = Modifier.padding(16.dp),
+                            ) {
+                                DialogAmountField(
+                                    value = countText,
+                                    onValueChange = { countText = it },
+                                    placeholder = "10",
+                                )
+                                Spacer(Modifier.width(12.dp))
+                                Text(
+                                    text = stringResource(R.string.event_edit_recurrence_times),
+                                    style = MaterialTheme.typography.titleMedium,
+                                )
+                            }
+                        }
+                    }
                 }
             }
         }
@@ -1347,7 +1626,13 @@ private fun RecurrencePickerDialog(
                 untilIso = it.toString()
                 showUntilPicker = false
             },
-            onDismiss = { showUntilPicker = false },
+            onDismiss = {
+                showUntilPicker = false
+                // Backing out of the date picker with nothing chosen would leave
+                // "on date" selected but dateless — a state that can't be saved and
+                // greys out OK with no visible cause. Fall back to "never".
+                if (untilIso == null) endMode = RecurrenceEndMode.Never
+            },
         )
     }
 }
@@ -1362,14 +1647,15 @@ private fun WeekdayToggleRow(
     selected: Set<DayOfWeek>,
     onToggle: (DayOfWeek) -> Unit,
     locale: Locale,
+    firstDay: DayOfWeek,
+    modifier: Modifier = Modifier,
 ) {
-    val days = remember(locale) {
-        val first = WeekFields.of(locale).firstDayOfWeek.toKotlinDayOfWeek()
-        (0 until 7).map { DayOfWeek(((first.isoDayNumber - 1 + it) % 7) + 1) }
+    val days = remember(firstDay) {
+        (0 until 7).map { DayOfWeek(((firstDay.isoDayNumber - 1 + it) % 7) + 1) }
     }
     Row(
         horizontalArrangement = Arrangement.SpaceBetween,
-        modifier = Modifier.fillMaxWidth(),
+        modifier = modifier.fillMaxWidth(),
     ) {
         days.forEach { day ->
             val isSelected = day in selected
@@ -1422,18 +1708,14 @@ private fun recurrenceUnitLabel(freq: RecurrenceFreq): Int = when (freq) {
     RecurrenceFreq.Yearly -> R.string.recurrence_unit_years
 }
 
-/** Corner shape for a card at [position] in a grouped run (mirrors GroupedRow). */
-private fun groupedShape(position: Position, full: Dp = 20.dp, small: Dp = 6.dp): Shape =
-    when (position) {
-        Position.Alone -> RoundedCornerShape(full)
-        Position.Top -> RoundedCornerShape(
-            topStart = full, topEnd = full, bottomStart = small, bottomEnd = small,
-        )
-        Position.Middle -> RoundedCornerShape(small)
-        Position.Bottom -> RoundedCornerShape(
-            topStart = small, topEnd = small, bottomStart = full, bottomEnd = full,
-        )
-    }
+/**
+ * Corner shape for a card at [position] in a grouped run. Delegates to the
+ * family primitive with the same radii [GroupedSurface] draws at rest — a local
+ * copy had drifted to 20dp, so a card sharing a run with GroupedRows had
+ * visibly tighter outer corners than the rows above it.
+ */
+private fun groupedShape(position: Position): Shape =
+    floretGroupedShape(position, full = 22.dp, small = 6.dp)
 
 /** The 2dp gap that visually separates grouped cards (none after the last). */
 private fun groupedGap(position: Position): Modifier = when (position) {
@@ -1747,12 +2029,21 @@ private fun ColorPickerDialog(
             modifier = Modifier.padding(horizontal = 24.dp, vertical = 8.dp),
         ) {
             if (palette.isNotEmpty()) {
+                // The event's current colour may not be in the curated palette
+                // (a thinned near-duplicate, or a raw colour set elsewhere) —
+                // append it so the selection ring has a home.
+                val swatches = palette.map { it.argb }.let {
+                    if (selected != null && selected !in it) it + selected else it
+                }
                 ColorSwatchRow(
-                    colors = palette.map { it.argb },
+                    colors = swatches,
                     selected = selected,
                     onSelect = { argb ->
-                        palette.firstOrNull { it.argb == argb }
-                            ?.let { onPickKey(it.key, it.argb) }
+                        val option = palette.firstOrNull { it.argb == argb }
+                        // The appended current colour has no provider key to
+                        // write — it is already the event's colour, so just
+                        // close.
+                        if (option != null) onPickKey(option.key, option.argb) else onDismiss()
                     },
                     dark = dark,
                 )
@@ -1867,6 +2158,21 @@ private fun EditCard(
     }
 }
 
+/**
+ * "2:00 PM – 3:00 PM", honouring the user's 12/24-hour setting. Collapses to one
+ * time when both land on the same minute (an instant event shouldn't read as a
+ * range against itself). Dates are deliberately absent — the rows above carry
+ * them.
+ */
+@Composable
+private fun formatTimeRange(start: LocalDateTime, end: LocalDateTime, locale: Locale): String {
+    val use24Hour = LocalUse24HourFormat.current
+    val timeFormat = remember(locale, use24Hour) { timeOfDayFormatter(use24Hour, locale) }
+    val from = timeFormat.format(start.time.toJavaLocalTime())
+    val to = timeFormat.format(end.time.toJavaLocalTime())
+    return if (from == to) from else "$from – $to"
+}
+
 /**
  * Borderless text input used inside the cards (and as the headline title).
  * Thin wrapper over the shared [InlineTextField] so the form and the rest of

app/src/main/java/de/jeanlucmakiola/calendula/ui/edit/EventEditUiState.kt

@@ -27,6 +27,8 @@ data class EventEditUiState(
      * neither list.
      */
     val hiddenFields: List<EventFormField> = emptyList(),
+    /** Recently picked zones, most recent first — the zone picker's shortlist. */
+    val recentTimeZones: List<String> = emptyList(),
     /** True while editing an existing event (the calendar is then fixed). */
     val isEditing: Boolean = false,
     /**

app/src/main/java/de/jeanlucmakiola/calendula/ui/edit/EventEditViewModel.kt

@@ -8,6 +8,7 @@ import de.jeanlucmakiola.calendula.data.calendar.NoSuchEventException
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
 import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
 import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
+import de.jeanlucmakiola.calendula.data.prefs.firstDayOfWeek
 import de.jeanlucmakiola.calendula.data.prefs.resolveDefaultReminder
 import de.jeanlucmakiola.calendula.domain.AccessLevel
 import de.jeanlucmakiola.calendula.domain.Availability
@@ -21,6 +22,7 @@ import de.jeanlucmakiola.calendula.domain.RecurringWriteScope
 import de.jeanlucmakiola.calendula.domain.populatedFields
 import de.jeanlucmakiola.calendula.domain.problems
 import de.jeanlucmakiola.calendula.domain.toEditSnapshot
+import de.jeanlucmakiola.calendula.ui.detail.EventDetailViewModel.Companion.NO_OCCURRENCE_TIME
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.Flow
@@ -38,6 +40,8 @@ import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
 import kotlinx.datetime.LocalDateTime
 import kotlinx.datetime.LocalTime
@@ -50,6 +54,36 @@ import kotlin.time.Duration.Companion.hours
 import kotlin.time.Instant
 import javax.inject.Inject
 
+/**
+ * Where a prefilled [EventEditViewModel.openImported] form came from — the two
+ * sources want different reminder handling (#49).
+ */
+enum class ImportSource {
+    /**
+     * An external `ACTION_INSERT` intent (another app/widget, e.g. Google Maps).
+     * It carries no reminders of its own, so the settings default is applied
+     * automatically, exactly like an in-app new event.
+     */
+    Insert,
+
+    /**
+     * A parsed single-event `.ics` file. Its own reminders are respected; the
+     * settings default is offered through [EventEditViewModel.importReminderPrompt]
+     * rather than silently applied or suppressed.
+     */
+    File,
+}
+
+/**
+ * A pending offer to swap an imported `.ics` event's reminders for the settings
+ * default (#49). [currentReminderCount] is what the file carried (0 or more);
+ * [defaultReminders] is what accepting would set.
+ */
+data class ImportReminderPrompt(
+    val currentReminderCount: Int,
+    val defaultReminders: List<Int>,
+)
+
 /**
  * Holds the event form being composed. The form's calendar id resolves to
  * (user pick > last used > first writable); the resolved value is what the UI
@@ -78,10 +112,16 @@ class EventEditViewModel @Inject constructor(
     // freezes the auto-applied default: switching calendars no longer overwrites
     // their choice. Reset with the form.
     private val _remindersTouched = MutableStateFlow(false)
+    // A one-time offer, raised when a .ics import opens, to replace the file's
+    // reminders with the settings default (#49). Null while there's nothing to ask.
+    private val _importReminderPrompt = MutableStateFlow<ImportReminderPrompt?>(null)
 
     /** True when the event to edit couldn't be loaded; the screen closes itself. */
     val loadFailed: StateFlow<Boolean> = _loadFailed.asStateFlow()
 
+    /** Pending "apply your default reminder?" offer for a `.ics` import; null when none. */
+    val importReminderPrompt: StateFlow<ImportReminderPrompt?> = _importReminderPrompt.asStateFlow()
+
     /**
      * The event being edited plus everything the form saw at load time.
      * For recurring events the write scope is chosen at save time; the
@@ -112,7 +152,17 @@ class EventEditViewModel @Inject constructor(
         val allDay: List<Int>,
         val timedOverrides: Map<Long, List<Int>>,
         val allDayOverrides: Map<Long, List<Int>>,
-    )
+    ) {
+        /** The default reminders for an event on [calendarId] of the given kind. */
+        fun resolveFor(calendarId: Long?, isAllDay: Boolean): List<Int> = resolveDefaultReminder(
+            timedGlobal = timed,
+            allDayGlobal = allDay,
+            timedOverrides = timedOverrides,
+            allDayOverrides = allDayOverrides,
+            calendarId = calendarId,
+            isAllDay = isAllDay,
+        )
+    }
 
     private data class ExternalInputs(
         val writable: List<CalendarSource>,
@@ -172,7 +222,8 @@ class EventEditViewModel @Inject constructor(
         ).flowOn(io),
         colorPalette,
         allCalendars,
-    ) { local, external, palette, allCalendars ->
+        settingsPrefs.recentTimeZones.flowOn(io),
+    ) { local, external, palette, allCalendars, recentTimeZones ->
         val form = local.form ?: return@combine null
         val resolvedId = form.calendarId
             ?: external.lastUsed?.takeIf { id -> external.writable.any { it.id == id } }
@@ -188,14 +239,19 @@ class EventEditViewModel @Inject constructor(
         val pickerCalendars =
             if (isManaged && resolvedCalendar != null) external.writable + resolvedCalendar
             else external.writable
-        val visibleFields = external.defaultFields + local.revealed
+        // An all-day event is date-anchored, so a zone is meaningless on it —
+        // the field is withheld from both lists rather than shown as a no-op.
+        val offerableFields = EventFormField.entries.toSet() -
+            if (resolved.isAllDay) setOf(EventFormField.Timezone) else emptySet()
+        val visibleFields = (external.defaultFields + local.revealed) intersect offerableFields
         EventEditUiState(
             form = resolved,
             calendars = pickerCalendars,
             problems = if (local.showProblems) resolved.problems() else emptySet(),
             saveState = local.saveState,
             visibleFields = visibleFields,
-            hiddenFields = (EventFormField.entries.toSet() - visibleFields).sorted(),
+            hiddenFields = (offerableFields - visibleFields).sorted(),
+            recentTimeZones = recentTimeZones,
             isEditing = local.editTarget != null,
             isManaged = isManaged,
             autofocusTitle = external.autofocusTitle,
@@ -213,6 +269,13 @@ class EventEditViewModel @Inject constructor(
             initialValue = null,
         )
 
+    /**
+     * First day of the week for ordering the recurrence weekday toggles — the
+     * app's "week starts on" preference, matching the calendar views (Auto
+     * falls back to the locale convention).
+     */
+    val firstDayOfWeek: StateFlow<DayOfWeek> = settingsPrefs.firstDayOfWeek(viewModelScope)
+
     /**
      * Initialise a fresh form for a new event on [date]. [startMinutes] (minutes
      * from midnight) anchors the start when the form is opened by tapping a slot
@@ -241,18 +304,39 @@ class EventEditViewModel @Inject constructor(
     }
 
     /**
-     * Seed a fresh event from a parsed `.ics` file (the single-event "open into
-     * the create form" path). [form] already carries the file's fields; its
-     * [EventForm.calendarId] is null so the calendar still resolves to the
-     * last-used/first-writable one, and reminders are frozen as touched so the
-     * settings default never overwrites what the file specified. No-op when a
-     * form is already open, so the prefill survives configuration changes.
+     * Seed a fresh event from a prefilled [form] — a parsed single-event `.ics`
+     * file ([ImportSource.File]) or an external `ACTION_INSERT` intent (another
+     * app/widget creating an event, e.g. Google Maps' "add to calendar";
+     * [ImportSource.Insert]; #30, #49). [EventForm.calendarId] is null so the
+     * calendar still resolves to the last-used/first-writable one.
+     *
+     * Reminders are handled per [source], because the two paths mean different
+     * things by "no reminders":
+     * - [ImportSource.Insert] carries no reminder semantics, so the settings
+     *   default is applied automatically like an in-app new event (a form that
+     *   somehow did carry reminders keeps them, frozen).
+     * - [ImportSource.File] owns its reminders, so they're frozen as-is; if a
+     *   settings default is configured and differs, [importReminderPrompt] offers
+     *   to swap it in rather than silently deciding for the user.
+     *
+     * No-op when a form is already open, so the prefill survives configuration
+     * changes.
      */
-    fun openImported(form: EventForm) {
+    fun openImported(form: EventForm, source: ImportSource) {
         if (_form.value != null || _editTarget.value != null) return
-        _remindersTouched.value = true
         _revealed.value = form.populatedFields()
         _form.value = form
+        when (source) {
+            ImportSource.Insert ->
+                if (form.reminders.isNotEmpty()) _remindersTouched.value = true
+                else applyDefaultReminder()
+
+            ImportSource.File -> {
+                // Respect the file's own reminders; never silently overwrite them.
+                _remindersTouched.value = true
+                maybePromptImportedReminderDefault(form)
+            }
+        }
     }
 
     /**
@@ -266,26 +350,12 @@ class EventEditViewModel @Inject constructor(
     private fun applyDefaultReminder(calendarId: Long? = null) {
         if (_editTarget.value != null || _remindersTouched.value) return
         viewModelScope.launch {
-            val defaults = combine(
-                settingsPrefs.defaultReminderMinutes,
-                settingsPrefs.defaultAllDayReminderMinutes,
-                settingsPrefs.perCalendarReminderOverride,
-                settingsPrefs.perCalendarAllDayReminderOverride,
-            ) { timed, allDay, timedOv, allDayOv ->
-                ReminderDefaults(timed, allDay, timedOv, allDayOv)
-            }.first()
+            val defaults = reminderDefaults()
             val targetId = calendarId ?: resolvedCalendarId.first()
             // Re-check after suspending: bail if the form closed or the user edited.
             val form = _form.value ?: return@launch
             if (_editTarget.value != null || _remindersTouched.value) return@launch
-            val reminders = resolveDefaultReminder(
-                timedGlobal = defaults.timed,
-                allDayGlobal = defaults.allDay,
-                timedOverrides = defaults.timedOverrides,
-                allDayOverrides = defaults.allDayOverrides,
-                calendarId = targetId,
-                isAllDay = form.isAllDay,
-            )
+            val reminders = defaults.resolveFor(targetId, form.isAllDay)
             _form.value = form.copy(reminders = reminders)
             // Surface the section so an auto-applied default is visible and
             // removable, even when Reminders isn't a default-shown field.
@@ -295,10 +365,60 @@ class EventEditViewModel @Inject constructor(
         }
     }
 
+    /** Snapshot the four settings-default reminder flows into one value. */
+    private suspend fun reminderDefaults(): ReminderDefaults = combine(
+        settingsPrefs.defaultReminderMinutes,
+        settingsPrefs.defaultAllDayReminderMinutes,
+        settingsPrefs.perCalendarReminderOverride,
+        settingsPrefs.perCalendarAllDayReminderOverride,
+    ) { timed, allDay, timedOv, allDayOv ->
+        ReminderDefaults(timed, allDay, timedOv, allDayOv)
+    }.first()
+
+    /**
+     * A `.ics` import respects the file's reminders, but an event opened from a
+     * file often has none while the user still expects their configured default.
+     * Rather than silently deciding, raise a one-time offer to swap in the
+     * settings default — but only when there's a real choice: a default is
+     * configured and it isn't already exactly what the file carried.
+     */
+    private fun maybePromptImportedReminderDefault(form: EventForm) {
+        viewModelScope.launch {
+            val targetId = resolvedCalendarId.first()
+            val default = reminderDefaults().resolveFor(targetId, form.isAllDay)
+            // Bail if the form closed or became an edit while we resolved.
+            val current = _form.value ?: return@launch
+            if (_editTarget.value != null) return@launch
+            if (default.isEmpty() || default == current.reminders) return@launch
+            _importReminderPrompt.value = ImportReminderPrompt(
+                currentReminderCount = current.reminders.size,
+                defaultReminders = default,
+            )
+        }
+    }
+
+    /** Accept the import prompt: replace the file's reminders with the default. */
+    fun applyImportedReminderDefault() {
+        val prompt = _importReminderPrompt.value ?: return
+        _importReminderPrompt.value = null
+        // Already frozen as touched by openImported; this just swaps the values.
+        update { it.copy(reminders = prompt.defaultReminders) }
+        _revealed.value = _revealed.value + EventFormField.Reminders
+    }
+
+    /** Decline the import prompt: keep the file's own reminders untouched. */
+    fun dismissImportedReminderPrompt() {
+        _importReminderPrompt.value = null
+    }
+
     /**
      * Load an existing event into the form. [beginMillis]/[endMillis] are the
-     * tapped occurrence's own times, like on the detail screen. No-op while a
-     * form is open, so user edits survive configuration changes.
+     * tapped occurrence's own times, like on the detail screen. An external
+     * "edit this event" (`ACTION_EDIT`) that names no occurrence passes
+     * [NO_OCCURRENCE_TIME]; the row's own DTSTART/DTEND is used then, so the
+     * form loads the event's real times instead of the epoch (mirrors the
+     * detail screen's #48 fallback). No-op while a form is open, so user edits
+     * survive configuration changes.
      */
     fun openForEdit(eventId: Long, beginMillis: Long, endMillis: Long) {
         if (_form.value != null || _editTarget.value != null) return
@@ -312,8 +432,12 @@ class EventEditViewModel @Inject constructor(
                 return@launch
             }
             val zone = TimeZone.currentSystemDefault()
-            val snapshot = detail.toEditSnapshot(beginMillis, endMillis, zone)
-            _editTarget.value = EditTarget(eventId, snapshot, beginMillis, endMillis, zone)
+            val begin = beginMillis.takeUnless { it == NO_OCCURRENCE_TIME }
+                ?: detail.instance.start.toEpochMilliseconds()
+            val end = endMillis.takeUnless { it == NO_OCCURRENCE_TIME }
+                ?: detail.instance.end.toEpochMilliseconds()
+            val snapshot = detail.toEditSnapshot(begin, end, zone)
+            _editTarget.value = EditTarget(eventId, snapshot, begin, end, zone)
             // Sections holding data must show even when not in the defaults.
             _revealed.value = snapshot.form.populatedFields()
             _form.value = snapshot.form
@@ -329,6 +453,7 @@ class EventEditViewModel @Inject constructor(
         _editTarget.value = null
         _loadFailed.value = false
         _remindersTouched.value = false
+        _importReminderPrompt.value = null
     }
 
     /** Unfold one optional field, picked in the "more fields" dialog. */
@@ -344,12 +469,28 @@ class EventEditViewModel @Inject constructor(
     fun setLocation(value: String) = update { it.copy(location = value) }
     fun setDescription(value: String) = update { it.copy(description = value) }
     fun setAllDay(value: Boolean) {
-        update { it.copy(isAllDay = value) }
+        // Going all-day drops any pinned zone: the times become bare dates that
+        // the provider stores UTC-anchored, so a zone could only misrepresent
+        // them. Coming back out of all-day leaves the event on the device zone,
+        // which is the same thing a fresh event gets.
+        update { it.copy(isAllDay = value, timezone = if (value) null else it.timezone) }
         // The default reminder differs for all-day vs timed; re-apply the
         // type-appropriate default unless the user has hand-edited it (guarded).
         applyDefaultReminder()
     }
 
+    /**
+     * Pin the event to [zoneId], or pass null to follow the device. The zone
+     * rides along as a recent so the picker can offer it without a search next
+     * time — only real picks are remembered, not the device fallback.
+     */
+    fun setTimezone(zoneId: String?) {
+        update { it.copy(timezone = zoneId) }
+        if (zoneId != null) {
+            viewModelScope.launch { withContext(io) { settingsPrefs.addRecentTimeZone(zoneId) } }
+        }
+    }
+
     /**
      * Switching calendars drops any chosen colour: a palette key is
      * account-scoped, and a raw colour may be invalid on the new calendar.
@@ -439,10 +580,15 @@ class EventEditViewModel @Inject constructor(
             _saveState.value = SaveUiState.Saved
             return
         }
+        // Changing the calendar moves the event (copy+delete — CALENDAR_ID can't
+        // be updated in place) and is inherently whole-series: an occurrence
+        // can't live in a different calendar than its series, so a move skips the
+        // scope dialog even for a recurring event.
+        val movingCalendar = target != null && form.calendarId != target.original.calendarId
         // Managed events are a yearly series whose editable fields (reminders,
         // notes, location) live on the series row — never offer the scope dialog,
         // which would split the series into an exception the sync then reverts.
-        if (target != null && target.original.rrule != null && !current.isManaged) {
+        if (target != null && target.original.rrule != null && !current.isManaged && !movingCalendar) {
             _saveState.value = SaveUiState.AwaitingScope
             return
         }
@@ -497,6 +643,17 @@ class EventEditViewModel @Inject constructor(
                 if (target == null) {
                     repository.createEvent(form)
                     prefs.setLastUsedCalendarId(requireNotNull(form.calendarId))
+                } else if (form.calendarId != target.original.calendarId) {
+                    // Move to the picked calendar (copy+delete), carrying any
+                    // field edits made in the same save. The target becomes the
+                    // last-used calendar, like a create does.
+                    repository.moveEvent(
+                        eventId = target.eventId,
+                        targetCalendarId = requireNotNull(form.calendarId),
+                        original = target.original,
+                        updated = form,
+                    )
+                    prefs.setLastUsedCalendarId(requireNotNull(form.calendarId))
                 } else {
                     when (scope) {
                         RecurringWriteScope.ThisEvent ->

app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthMorph.kt

@@ -0,0 +1,154 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import androidx.compose.animation.AnimatedVisibilityScope
+import androidx.compose.animation.ExperimentalSharedTransitionApi
+import androidx.compose.animation.SharedTransitionScope
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.compositionLocalOf
+import androidx.compose.ui.Modifier
+import kotlinx.datetime.LocalDate
+
+/**
+ * What lets the split style's compact grid *become* the full month rather than be
+ * swapped for it (#53).
+ *
+ * The two grids are separate composables — the compact one draws dots, the
+ * expanded one draws the paged style's bars and pills — so nothing about them is
+ * shared by construction. Tagging the pieces that mean the same thing on both
+ * sides with the same [MonthMorphKey] hands Compose enough to animate one into
+ * the other: a day's cell grows, its number rides along, and each dot travels out
+ * to the bar it stood for.
+ *
+ * It travels as a composition local rather than as parameters because the pieces
+ * sit five levels below where the scopes exist, and because a null default is
+ * exactly the right meaning for everyone else: the paged, continuous, and dense
+ * styles share the same row and cell composables, provide nothing, and pay
+ * nothing. Reduced motion provides nothing either, which leaves the plain
+ * cross-fade underneath.
+ */
+internal sealed interface MonthMorphKey {
+    /** A day's background pill — the structural anchor the rest rides on. */
+    data class Cell(val date: LocalDate) : MonthMorphKey
+
+    data class DayNumber(val date: LocalDate) : MonthMorphKey
+
+    /**
+     * One event *on one day*. Keyed by date as well as instance because a
+     * multi-day event has a dot on every day it covers but only one bar, drawn
+     * from where it starts: the start day's dot is the one that becomes the bar,
+     * and the rest are left unmatched on purpose. They fade where they stand
+     * while the bar sweeps out over them, which is the honest reading — one of
+     * them could not become the bar without the others teleporting into it.
+     */
+    data class Event(val date: LocalDate, val instanceId: Long) : MonthMorphKey
+
+    /**
+     * A day's "+N" marker. The compact grid writes it as a count beside the dots
+     * and the expanded one as a row of small dots under the bars, but they stand
+     * for the same events and appear on exactly the same days — both sides seat
+     * three and overflow the rest — so they are a matched pair, not two unrelated
+     * bits of text. Tagged, the marker travels with its day like everything else
+     * in the cell.
+     */
+    data class Overflow(val date: LocalDate) : MonthMorphKey
+
+    /**
+     * The selected day's outline. The expanded grid draws no outline — once the
+     * cells carry real event bars it is one mark too many — so this pairs the
+     * compact grid's outline with an *invisible* stand-in over the same cell
+     * there. Without one it had nowhere to travel and could only fade in place
+     * while everything around it moved.
+     */
+    data class Selection(val date: LocalDate) : MonthMorphKey
+
+    /** The grab handle, which slides from the pane's seam to the foot of the grid. */
+    data object Handle : MonthMorphKey
+}
+
+@OptIn(ExperimentalSharedTransitionApi::class)
+internal class MonthMorphScope(
+    val shared: SharedTransitionScope,
+    val visibility: AnimatedVisibilityScope,
+)
+
+internal val LocalMonthMorph = compositionLocalOf<MonthMorphScope?> { null }
+
+/**
+ * True while the grid is mid-morph, for content that has to stop clipping to let
+ * the travelling pieces through.
+ *
+ * A mark's two homes are in *different rows*: the dot for the 20th sits a third
+ * of the way down the compact grid, its bar most of the way down the expanded
+ * one. Clipped to the row it is arriving at, a mark spends the first half of its
+ * journey outside those bounds and is simply not drawn — so it appears from
+ * nowhere, part-way through, already near its destination. Rendering in place
+ * rather than in an overlay is what subjects them to that clip, and is worth
+ * keeping; the clip is what has to yield, and only while pieces are in flight.
+ */
+@OptIn(ExperimentalSharedTransitionApi::class)
+@Composable
+internal fun morphInFlight(): Boolean {
+    val morph = LocalMonthMorph.current ?: return false
+    return morph.shared.isTransitionActive
+}
+
+/**
+ * Tag content that is *the same thing* on both sides — a background pill, a day
+ * number — so it animates between its two positions and sizes.
+ *
+ * ### Why nothing renders in the overlay
+ *
+ * By default a travelling piece is painted into an overlay above the *entire*
+ * regular tree, so it can fly over anything in its way. That is right for a
+ * thumbnail crossing a screen, and wrong here: everything is moving inside one
+ * grid, and the overlay meant every untagged neighbour — the selection outline,
+ * the "+N" markers — spent the transition buried under pieces that had left the
+ * tree's z-order behind. Lifting each of them out in turn fixed the burying and
+ * bought a worse problem: they then floated over the grid on their own layer,
+ * out of step with it.
+ *
+ * Rendering in place puts everything back in one z-order and one clip, which is
+ * what makes the grid read as a single surface changing shape rather than a
+ * stack of pieces sliding past each other. Nothing here needs to escape its
+ * ancestors: the cells, marks and markers all travel within the grid.
+ */
+@OptIn(ExperimentalSharedTransitionApi::class)
+@Composable
+internal fun Modifier.morphElement(key: MonthMorphKey): Modifier {
+    val morph = LocalMonthMorph.current ?: return this
+    return with(morph.shared) {
+        this@morphElement.sharedElement(
+            sharedContentState = rememberSharedContentState(key),
+            animatedVisibilityScope = morph.visibility,
+            renderInOverlayDuringTransition = false,
+        )
+    }
+}
+
+/**
+ * Tag content that means the same thing but *is drawn differently* on each side —
+ * a 5dp dot and a titled bar — so only the bounds are shared and the contents
+ * cross-fade inside them.
+ *
+ * [ResizeMode.RemeasureToBounds][SharedTransitionScope.ResizeMode] rather than
+ * scaling: a bar's title laid out at the dot's 5dp and then scaled up would
+ * arrive as a smear. Remeasuring keeps the text at its real size throughout and
+ * simply clips it while there is no room, so what grows is the pill, not the type.
+ */
+@OptIn(ExperimentalSharedTransitionApi::class)
+@Composable
+internal fun Modifier.morphBounds(key: MonthMorphKey): Modifier {
+    val morph = LocalMonthMorph.current ?: return this
+    return with(morph.shared) {
+        this@morphBounds.sharedBounds(
+            sharedContentState = rememberSharedContentState(key),
+            animatedVisibilityScope = morph.visibility,
+            enter = fadeIn(),
+            exit = fadeOut(),
+            resizeMode = SharedTransitionScope.ResizeMode.RemeasureToBounds,
+            renderInOverlayDuringTransition = false,
+        )
+    }
+}

app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthStylePreview.kt

@@ -0,0 +1,284 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clipToBounds
+import androidx.compose.ui.layout.layout
+import androidx.compose.ui.unit.Constraints
+import androidx.compose.ui.graphics.TransformOrigin
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.input.pointer.PointerEventPass
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalConfiguration
+import androidx.compose.ui.semantics.clearAndSetSemantics
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.datetime.DateTimeUnit
+import kotlinx.datetime.DayOfWeek
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.YearMonth
+import kotlinx.datetime.atTime
+import kotlinx.datetime.plus
+import kotlinx.datetime.toInstant
+import kotlinx.datetime.toLocalDateTime
+import kotlin.time.Clock
+import kotlin.math.roundToInt
+
+/**
+ * A live, scaled-down Month view in a given [MonthViewStyle], for the settings
+ * chooser.
+ *
+ * It renders the *real* grid composables rather than a drawing of them, so the
+ * preview cannot drift from the thing it depicts: change a cell's shape or an
+ * event bar's colour and every preview follows automatically. The trick is
+ * [requiredSize] — it ignores the incoming constraints, so the grid lays itself
+ * out at a full phone width and a plausible viewport height, and a
+ * [graphicsLayer] scale shrinks the finished layout into the card.
+ *
+ * The month, today's position and the week start are all real; only the events
+ * are stand-ins, since the settings screen has no business querying the
+ * provider for a thumbnail.
+ */
+@Composable
+internal fun MonthStylePreview(
+    style: MonthViewStyle,
+    weekStart: DayOfWeek,
+    height: Dp,
+    modifier: Modifier = Modifier,
+) {
+    val screenWidth = LocalConfiguration.current.screenWidthDp.dp
+    val scale = height.value / VIRTUAL_HEIGHT.value
+    val zone = remember { TimeZone.currentSystemDefault() }
+    val today = remember(zone) { Clock.System.now().toLocalDateTime(zone).date }
+    val sample = remember(today, weekStart, zone) { sampleMonthState(today, weekStart, zone) }
+
+    Box(
+        modifier = modifier
+            .clipToBounds()
+            .background(MaterialTheme.colorScheme.surface)
+            // A preview is a picture, not a control: swallow touches before the
+            // grid's own clickables see them, and give screen readers one label
+            // instead of six weeks of day cells.
+            .pointerInput(Unit) {
+                awaitPointerEventScope {
+                    while (true) {
+                        awaitPointerEvent(PointerEventPass.Initial).changes
+                            .forEach { it.consume() }
+                    }
+                }
+            }
+            .clearAndSetSemantics { }
+            // Measure the grid at a full phone viewport but report the scaled
+            // size, so the node occupies exactly what it draws.
+            //
+            // Modifier.requiredSize would be the obvious way to force the larger
+            // measurement, but it *centres* content that overflows the incoming
+            // constraints — which pushed the grid to a negative offset and left
+            // only its bottom-right corner inside the clip.
+            .layout { measurable, _ ->
+                val fullWidth = screenWidth.roundToPx()
+                val fullHeight = VIRTUAL_HEIGHT.roundToPx()
+                val placeable = measurable.measure(Constraints.fixed(fullWidth, fullHeight))
+                layout((fullWidth * scale).roundToInt(), (fullHeight * scale).roundToInt()) {
+                    placeable.place(0, 0)
+                }
+            }
+            .graphicsLayer {
+                scaleX = scale
+                scaleY = scale
+                transformOrigin = TransformOrigin(0f, 0f)
+            },
+    ) {
+        Column(Modifier.fillMaxSize()) {
+            WeekdayHeader(weekStart = weekStart, showWeekNumbers = false)
+                when (style) {
+                    MonthViewStyle.Paged -> MonthGrid(
+                        state = sample.month,
+                        showWeekNumbers = false,
+                        onOpenDay = {},
+                    )
+                    MonthViewStyle.Continuous -> ContinuousMonthGrid(
+                        state = sample.continuous,
+                        listState = rememberLazyListState(
+                            initialFirstVisibleItemIndex = itemIndexForMonth(
+                                monthIndexOf(YearMonth(today.year, today.month)),
+                            ),
+                        ),
+                        showWeekNumbers = false,
+                        onOpenDay = {},
+                    )
+                    MonthViewStyle.Dense -> DenseMonthGrid(
+                        state = sample.continuous,
+                        listState = rememberLazyListState(
+                            // Start a week above today's, so the preview shows a
+                            // stream running past the viewport rather than one
+                            // beginning at its top edge.
+                            initialFirstVisibleItemIndex =
+                                weekIndexOf(today, weekStart) - 1,
+                        ),
+                        showWeekNumbers = false,
+                        onOpenDay = {},
+                    )
+                    MonthViewStyle.Split -> {
+                        SplitMonthGrid(
+                            state = sample.month,
+                            selected = today,
+                            showWeekNumbers = false,
+                            onSelectDay = {},
+                        )
+                        SplitDayPane(
+                            date = today,
+                            today = today,
+                            events = sample.month.instancesByDay[today].orEmpty(),
+                            zone = zone,
+                            onOpenDay = {},
+                            onEventClick = {},
+                            onCreateEvent = {},
+                            modifier = Modifier.fillMaxWidth().height(SPLIT_PANE_HEIGHT),
+                        )
+                    }
+                }
+            }
+    }
+}
+
+/**
+ * The viewport the preview pretends to be: a phone's width by the height a
+ * calendar view gets under the top bar. Scaling from a fixed height keeps the
+ * three styles comparable — each shows the same slice of screen.
+ */
+private val VIRTUAL_HEIGHT = 440.dp
+private val SPLIT_PANE_HEIGHT = 170.dp
+
+private class SampleMonth(
+    val month: MonthUiState.Success,
+    val continuous: ContinuousMonthUiState.Success,
+)
+
+/**
+ * A month's worth of stand-in events, laid out through the same
+ * [layoutMonthWeeks] / [clipWeekToMonth] the live views use — so the preview
+ * exercises the real span, lane and overflow logic rather than approximating it.
+ *
+ * Colours are raw ARGB on purpose: that is what the provider hands out for an
+ * event, so a token here would misrepresent what the grid actually renders.
+ */
+private fun sampleMonthState(
+    today: LocalDate,
+    weekStart: DayOfWeek,
+    zone: TimeZone,
+): SampleMonth {
+    val ym = YearMonth(today.year, today.month)
+    val first = LocalDate(ym.year, ym.month, 1)
+    val events = sampleEvents(first, today, zone)
+
+    val weeks = layoutMonthWeeks(ym, weekStart, events, zone)
+    val month = MonthUiState.Success(
+        month = ym,
+        today = today,
+        weeks = weeks,
+        instancesByDay = instancesByDay(weeks.flatMap { it.days }, events, zone),
+        zone = zone,
+    )
+
+    // The month either side of this one: enough for Continuous to show a block,
+    // the whitespace under it and the next month's header coming up, and for
+    // Dense to have somewhere to scroll in both directions.
+    val centre = monthIndexOf(ym)
+    val window = (centre - 1)..(centre + 1)
+    val continuous = ContinuousMonthUiState.Success(
+        today = today,
+        monthsByIndex = window.associateWith { index ->
+            val m = yearMonthForIndex(index)
+            layoutMonthWeeks(m, weekStart, events, zone).map { clipWeekToMonth(it, m) }
+        },
+        weeksByIndex = weekWindowFor(window, weekStart).associateWith { index ->
+            val days = (0 until 7).map {
+                weekStartForIndex(index, weekStart).plus(it, DateTimeUnit.DAY)
+            }
+            layoutCalendarWeek(days, events, zone)
+        },
+        weekStart = weekStart,
+    )
+    return SampleMonth(month, continuous)
+}
+
+private val SAMPLE_COLORS = listOf(
+    0xFF3F7BD4.toInt(),
+    0xFFCE5B4C.toInt(),
+    0xFF4E9A6A.toInt(),
+    0xFF8A63C7.toInt(),
+)
+
+private fun sampleEvents(
+    firstOfMonth: LocalDate,
+    today: LocalDate,
+    zone: TimeZone,
+): List<EventInstance> {
+    var id = 0L
+    fun next() = ++id
+
+    fun timed(day: LocalDate, hour: Int, length: Int, colorIndex: Int) = EventInstance(
+        instanceId = next(),
+        eventId = id,
+        calendarId = 1L,
+        title = SAMPLE_TITLES[(id.toInt() - 1) % SAMPLE_TITLES.size],
+        start = day.atTime(hour, 0).toInstant(zone),
+        end = day.atTime(hour + length, 0).toInstant(zone),
+        isAllDay = false,
+        color = SAMPLE_COLORS[colorIndex % SAMPLE_COLORS.size],
+        location = null,
+    )
+
+    fun allDay(from: LocalDate, days: Int, colorIndex: Int) = EventInstance(
+        instanceId = next(),
+        eventId = id,
+        calendarId = 1L,
+        title = SAMPLE_TITLES[(id.toInt() - 1) % SAMPLE_TITLES.size],
+        // All-day events sit at UTC midnights with an exclusive end.
+        start = from.atTime(0, 0).toInstant(TimeZone.UTC),
+        end = from.plus(days, DateTimeUnit.DAY).atTime(0, 0).toInstant(TimeZone.UTC),
+        isAllDay = true,
+        color = SAMPLE_COLORS[colorIndex % SAMPLE_COLORS.size],
+        location = null,
+    )
+
+    // Spread across the month so most weeks carry something, with one multi-day
+    // bar to show a span bridging cells and a busy today for the split pane.
+    return buildList {
+        add(allDay(firstOfMonth.plus(9, DateTimeUnit.DAY), days = 3, colorIndex = 2))
+        add(timed(firstOfMonth.plus(1, DateTimeUnit.DAY), 9, 1, 0))
+        add(timed(firstOfMonth.plus(4, DateTimeUnit.DAY), 14, 2, 1))
+        add(timed(firstOfMonth.plus(7, DateTimeUnit.DAY), 11, 1, 3))
+        add(timed(firstOfMonth.plus(15, DateTimeUnit.DAY), 10, 1, 0))
+        add(timed(firstOfMonth.plus(18, DateTimeUnit.DAY), 16, 1, 2))
+        add(timed(firstOfMonth.plus(22, DateTimeUnit.DAY), 8, 2, 1))
+        add(timed(firstOfMonth.plus(25, DateTimeUnit.DAY), 13, 1, 3))
+        // Today, so the split pane's list and the grid's dots both have content.
+        add(timed(today, 9, 1, 0))
+        add(timed(today, 12, 1, 1))
+        add(timed(today, 15, 2, 3))
+    }
+}
+
+private val SAMPLE_TITLES = listOf(
+    "Standup",
+    "Lunch",
+    "Review",
+    "Gym",
+    "Call",
+    "Workshop",
+    "Dentist",
+    "Trip",
+)

app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthUiState.kt

@@ -2,7 +2,9 @@ package de.jeanlucmakiola.calendula.ui.month
 
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.FailureReason
+import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
+import kotlinx.datetime.TimeZone
 import kotlinx.datetime.YearMonth
 
 /**
@@ -37,12 +39,85 @@ data class MonthWeek(
     val countByDay: Map<LocalDate, Int>,
 )
 
+/**
+ * The events occupying each lane of [day] — column [col] of this week — in lane
+ * order, capped at [laneCap] lanes.
+ *
+ * This is the same seating [spans]/[timedByDay] get when the paged grid draws a
+ * week: bars keep the lane the row layout gave them, and the day's timed events
+ * fill whatever slots are left, top-most first. Reading it here means the split
+ * style's dots and the paged style's bars describe a day in the *same order*, so
+ * dot _i_ and lane _i_ are the same event and one can morph into the other (#53).
+ *
+ * Deriving the dots independently — by distinct colour, as they first were —
+ * left dot _i_ standing for no particular event, and quietly merged two events
+ * that shared a calendar into a single dot.
+ */
+fun MonthWeek.laneEvents(col: Int, day: LocalDate, laneCap: Int): List<EventInstance> {
+    val byLane = arrayOfNulls<EventInstance>(laneCap)
+    spans.forEach { span ->
+        if (span.lane < laneCap && col in span.startCol..span.endCol) {
+            byLane[span.lane] = span.event
+        }
+    }
+    val free = (0 until laneCap).filter { byLane[it] == null }
+    timedByDay[day].orEmpty().take(free.size).forEachIndexed { i, event ->
+        byLane[free[i]] = event
+    }
+    return byLane.filterNotNull()
+}
+
+/**
+ * State for the continuous style (#38): a vertical stream of *self-contained*
+ * months rather than one undifferentiated run of weeks. Each month is keyed by
+ * absolute month index and carries only its own days — the boundary week keeps
+ * its seven columns so the grid geometry never shifts, but the neighbour month's
+ * dates are clipped out of it (see `clipWeekToMonth`) and render as blanks.
+ *
+ * The same loaded window is served two ways, because the Dense style is the same
+ * scroll with the seams taken out and it would be wasteful to query the provider
+ * twice for one range:
+ *
+ *  - [monthsByIndex] — the block layout, keyed by absolute month index, each week
+ *    clipped to its own month.
+ *  - [weeksByIndex] — the flowing layout, keyed by absolute week index, boundary
+ *    weeks left carrying both months.
+ *
+ * Both hold only the loaded window; indices outside it render as placeholders
+ * until the window catches up.
+ */
+sealed interface ContinuousMonthUiState {
+    data object Loading : ContinuousMonthUiState
+    data class Failure(val reason: FailureReason) : ContinuousMonthUiState
+    data class Success(
+        val today: LocalDate,
+        val monthsByIndex: Map<Int, List<MonthWeek>>,
+        val weeksByIndex: Map<Int, MonthWeek>,
+        val weekStart: DayOfWeek,
+    ) : ContinuousMonthUiState
+}
+
 sealed interface MonthUiState {
     data object Loading : MonthUiState
     data class Failure(val reason: FailureReason) : MonthUiState
+
+    /**
+     * [weeks] is what the grid draws; [instancesByDay] is the same events keyed by
+     * date and *uncapped*, so the split style's day pane can list everything on a
+     * date without a second provider query — the month grid range already covers
+     * it. All-day events sort first, then by start.
+     */
     data class Success(
         val month: YearMonth,
         val today: LocalDate,
         val weeks: List<MonthWeek>,
+        val instancesByDay: Map<LocalDate, List<EventInstance>> = emptyMap(),
+        /**
+         * Travels on the state rather than being read at the call site, for the
+         * same reason the agenda does it: a file-level constant would be fixed
+         * for the process lifetime and drift from the zone the events were laid
+         * out in after a device time-zone change.
+         */
+        val zone: TimeZone = TimeZone.currentSystemDefault(),
     ) : MonthUiState
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthViewModel.kt

@@ -6,7 +6,7 @@ import dagger.hilt.android.lifecycle.HiltViewModel
 import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
 import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
-import de.jeanlucmakiola.calendula.data.prefs.resolveFirstDay
+import de.jeanlucmakiola.calendula.data.prefs.firstDayOfWeek
 import de.jeanlucmakiola.calendula.domain.CalendarSource
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.FailureReason
@@ -20,21 +20,23 @@ import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.flowOn
-import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.datetime.DateTimeUnit
 import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
+import kotlinx.datetime.Month
 import kotlinx.datetime.TimeZone
 import kotlinx.datetime.YearMonth
 import kotlinx.datetime.atStartOfDayIn
 import kotlinx.datetime.atTime
+import kotlinx.datetime.daysUntil
 import kotlinx.datetime.minus
 import kotlinx.datetime.plus
 import kotlinx.datetime.toInstant
 import kotlinx.datetime.toLocalDateTime
-import java.util.Locale
 import kotlin.time.Clock
 import kotlin.time.Instant
 import javax.inject.Inject
@@ -48,16 +50,9 @@ class MonthViewModel @Inject constructor(
 ) : ViewModel() {
 
     private val zone = TimeZone.currentSystemDefault()
-    private val locale: Locale = Locale.getDefault()
 
     /** First day of the week, from the Settings preference (AUTO → locale). */
-    val weekStart: StateFlow<DayOfWeek> = settingsPrefs.weekStart
-        .map { it.resolveFirstDay(locale) }
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000L),
-            initialValue = DayOfWeek.MONDAY,
-        )
+    val weekStart: StateFlow<DayOfWeek> = settingsPrefs.firstDayOfWeek(viewModelScope)
 
     /** Whether to fade events that have already finished (display concern only). */
     val dimCompletedEvents: StateFlow<Boolean> = settingsPrefs.dimCompletedEvents
@@ -75,6 +70,14 @@ class MonthViewModel @Inject constructor(
             initialValue = false,
         )
 
+    /** How the grid is laid out and navigated (#38, #53). */
+    val viewStyle: StateFlow<MonthViewStyle> = settingsPrefs.monthViewStyle
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5_000L),
+            initialValue = MonthViewStyle.Paged,
+        )
+
     private val todayDate: LocalDate
         get() = Clock.System.now().toLocalDateTime(zone).date
 
@@ -82,8 +85,12 @@ class MonthViewModel @Inject constructor(
     val month: StateFlow<YearMonth> = _month
 
     val state: StateFlow<MonthUiState> =
-        combine(_month, weekStart) { ym, ws -> ym to ws }
-            .flatMapLatest { (ym, ws) ->
+        combine(_month, weekStart, viewStyle) { ym, ws, style -> Triple(ym, ws, style) }
+            .flatMapLatest { (ym, ws, style) ->
+                // The mirror of the gate below: the paged grid is what Paged and
+                // Split draw, so under a scrolling style this query is a month
+                // of provider work for a view that isn't on screen.
+                if (style.isScrolling) return@flatMapLatest flowOf(MonthUiState.Loading)
                 val range = monthGridRange(ym, ws, zone)
                 combine(
                     repository.calendars(),
@@ -100,21 +107,202 @@ class MonthViewModel @Inject constructor(
                 initialValue = MonthUiState.Loading,
             )
 
+    // --- Continuous + Dense styles (#38) ----------------------------------
+    //
+    // These scroll through every month there is, so they can't load "a month" —
+    // they load a sliding window of month indices around whatever is on screen.
+    // The window only moves when the visible range comes within WINDOW_EDGE
+    // months of a loaded edge, so a scroll re-queries occasionally rather than
+    // on every frame.
+    //
+    // The window also *starts small and grows*. A provider Instances query
+    // expands recurrences across its whole range, so opening straight onto a
+    // year of months made the first frame wait for eleven months of expansion
+    // when only one was about to be looked at. It now opens on INITIAL_PAD
+    // months, and each completed load widens by GROWTH_STEP in both directions
+    // until MAX_PAD — the months you can reach by scrolling arrive while you're
+    // still looking at the first one.
+
+    /** How far around the visible range we currently load; grows as loads land. */
+    @Volatile
+    private var loadPad = INITIAL_PAD
+
+    /** Last reported visible range, so a widening step can re-centre on it. */
+    @Volatile
+    private var visibleMonths = monthIndexOf(YearMonth(todayDate.year, todayDate.month))
+        .let { it..it }
+
+    private val _loadedMonths = MutableStateFlow(
+        monthIndexOf(YearMonth(todayDate.year, todayDate.month))
+            .let { clampMonthWindow(it - INITIAL_PAD..it + INITIAL_PAD) },
+    )
+
+    val continuousState: StateFlow<ContinuousMonthUiState> =
+        combine(_loadedMonths, weekStart, viewStyle) { window, ws, style ->
+            Triple(window, ws, style)
+        }
+            .flatMapLatest { (window, ws, style) ->
+                // Nothing to load for the paged and split styles — they have
+                // their own single-month flow, and querying a year of months
+                // behind them is pure waste.
+                if (!style.isScrolling) return@flatMapLatest flowOf(ContinuousMonthUiState.Loading)
+                // Widened to whole grid weeks at both ends: a month block still
+                // has to know about an event that starts in the boundary week's
+                // clipped-off days, or a bar running into the block would vanish.
+                val first = firstOfMonth(yearMonthForIndex(window.first)).startOfGridWeek(ws)
+                val last = firstOfMonth(yearMonthForIndex(window.last))
+                    .plus(1, DateTimeUnit.MONTH)
+                    .minus(1, DateTimeUnit.DAY)
+                    .startOfGridWeek(ws)
+                    .plus(6, DateTimeUnit.DAY)
+                val range = first.atStartOfDayIn(zone)..last.atTime(23, 59, 59).toInstant(zone)
+                combine(
+                    repository.calendars(),
+                    repository.instances(range),
+                ) { calendars, instances ->
+                    buildContinuousState(window, ws, style, calendars, instances)
+                }
+            }
+            // A load landing is the cue to reach further out. Widening from here
+            // rather than on a timer means each step waits for the previous one,
+            // so the ladder can never outrun the provider.
+            .onEach { if (it is ContinuousMonthUiState.Success) widenLoadedWindow() }
+            .catch { emit(ContinuousMonthUiState.Failure(FailureReason.ProviderUnavailable)) }
+            .flowOn(io)
+            .stateIn(
+                scope = viewModelScope,
+                started = SharingStarted.WhileSubscribed(5_000L),
+                initialValue = ContinuousMonthUiState.Loading,
+            )
+
+    /**
+     * Report which absolute month indices are on screen. Cheap to call on every
+     * scroll frame: it returns immediately unless the visible range has drifted
+     * close enough to a loaded edge to warrant a wider query.
+     */
+    fun onVisibleMonthsChanged(firstIndex: Int, lastIndex: Int) {
+        visibleMonths = firstIndex..lastIndex
+        nextLoadWindow(_loadedMonths.value, firstIndex, lastIndex, loadPad)
+            ?.let { _loadedMonths.value = clampMonthWindow(it) }
+    }
+
+    /**
+     * One rung up the ladder: reach [GROWTH_STEP] further in each direction,
+     * stopping at [MAX_PAD]. A no-op once there, so the provider notifications
+     * that re-emit the same window don't restart it.
+     */
+    private fun widenLoadedWindow() {
+        if (loadPad >= MAX_PAD) return
+        loadPad = (loadPad + GROWTH_STEP).coerceAtMost(MAX_PAD)
+        _loadedMonths.value = clampMonthWindow(
+            visibleMonths.first - loadPad..visibleMonths.last + loadPad,
+        )
+    }
+
+    private fun buildContinuousState(
+        window: IntRange,
+        weekStart: DayOfWeek,
+        style: MonthViewStyle,
+        calendars: List<CalendarSource>,
+        instances: List<EventInstance>,
+    ): ContinuousMonthUiState {
+        if (calendars.isEmpty()) {
+            return ContinuousMonthUiState.Failure(FailureReason.NoCalendarsConfigured)
+        }
+        // Bucketed once for the whole window: a row then takes the handful of
+        // events on its seven days instead of re-scanning a year of them.
+        val byDay = DayIndex(instances, zone)
+        // Only the style on screen is laid out. Building both doubled the work
+        // for a layout nothing was going to draw.
+        val months = if (style == MonthViewStyle.Continuous) {
+            window.associateWith { index ->
+                val ym = yearMonthForIndex(index)
+                layoutMonthWeeks(ym, weekStart, byDay, zone).map { clipWeekToMonth(it, ym) }
+            }
+        } else {
+            emptyMap()
+        }
+        val weeks = if (style == MonthViewStyle.Dense) {
+            weekWindowFor(window, weekStart).associateWith { index ->
+                val days = (0 until 7).map {
+                    weekStartForIndex(index, weekStart).plus(it, DateTimeUnit.DAY)
+                }
+                layoutCalendarWeek(days, byDay.eventsOn(days), zone)
+            }
+        } else {
+            emptyMap()
+        }
+        return ContinuousMonthUiState.Success(
+            today = todayDate,
+            monthsByIndex = months,
+            weeksByIndex = weeks,
+            weekStart = weekStart,
+        )
+    }
+
+    // --- Split style (#53) ------------------------------------------------
+    //
+    // The first selected-day concept in the app: the other views drill straight
+    // into a date, while the split style keeps one selected and lists it below
+    // the grid.
+
+    private val _selectedDate = MutableStateFlow(todayDate)
+    val selectedDate: StateFlow<LocalDate> = _selectedDate
+
+    /**
+     * Select [date], following it to its month if it sits in the grid's leading
+     * or trailing days — tapping a greyed-out day should show that day, not
+     * silently list a date the grid isn't pointing at.
+     */
+    fun selectDate(date: LocalDate) {
+        _selectedDate.value = date
+        val target = YearMonth(date.year, date.month)
+        if (target != _month.value) _month.value = target
+    }
+
+    /**
+     * Move the selection with the month: today if the new month holds it, else
+     * its 1st. Leaving the old date selected would list a day the grid no longer
+     * shows.
+     */
+    private fun realignSelection() {
+        _selectedDate.value = selectionForMonth(_month.value, todayDate)
+    }
+
     fun goToPrev() {
         _month.value = _month.value.minus(1, DateTimeUnit.MONTH)
+        realignSelection()
     }
 
     fun goToNext() {
         _month.value = _month.value.plus(1, DateTimeUnit.MONTH)
+        realignSelection()
     }
 
     fun goToToday() {
         _month.value = YearMonth(todayDate.year, todayDate.month)
+        _selectedDate.value = todayDate
+    }
+
+    /**
+     * Track [_month] to the month a scrolling style is showing. Those styles
+     * navigate by scroll position and never set [_month] themselves, so it would
+     * otherwise sit wherever paged navigation last left it (today's month, on a
+     * fresh open) — and a switch to a paged style, or a reseed of the other
+     * scrolling style's list, would jump there instead of holding position. The
+     * selection is realigned alongside it so that landing on the Split style
+     * shows a live day in the month on screen rather than a stale, off-month one.
+     */
+    fun syncScrollMonth(ym: YearMonth) {
+        if (_month.value == ym) return
+        _month.value = ym
+        _selectedDate.value = selectionForMonth(ym, todayDate)
     }
 
     /** Jump to the month containing [date] (drawer jump-to-date). */
     fun goToDate(date: LocalDate) {
         _month.value = YearMonth(date.year, date.month)
+        _selectedDate.value = date
     }
 
     private fun buildState(
@@ -126,10 +314,13 @@ class MonthViewModel @Inject constructor(
         if (calendars.isEmpty()) {
             return MonthUiState.Failure(FailureReason.NoCalendarsConfigured)
         }
+        val weeks = layoutMonthWeeks(ym, weekStart, instances, zone)
         return MonthUiState.Success(
             month = ym,
             today = todayDate,
-            weeks = layoutMonthWeeks(ym, weekStart, instances, zone),
+            weeks = weeks,
+            instancesByDay = instancesByDay(weeks.flatMap { it.days }, instances, zone),
+            zone = zone,
         )
     }
 }
@@ -148,41 +339,124 @@ internal fun layoutMonthWeeks(
     weekStart: DayOfWeek,
     instances: List<EventInstance>,
     zone: TimeZone,
+): List<MonthWeek> = layoutMonthWeeks(ym, weekStart, DayIndex(instances, zone), zone)
+
+/**
+ * As above, but reusing a [DayIndex] already built for a wider range — what the
+ * scrolling styles need, since they lay out many months from one query and
+ * rebuilding the index per month would put the cost straight back.
+ */
+internal fun layoutMonthWeeks(
+    ym: YearMonth,
+    weekStart: DayOfWeek,
+    byDay: DayIndex,
+    zone: TimeZone,
 ): List<MonthWeek> {
-    val firstOfMonth = LocalDate(ym.year, ym.month, 1)
-    val gridStart = firstOfMonth.startOfGridWeek(weekStart)
-    val leadOffset = ((firstOfMonth.dayOfWeek.ordinal - weekStart.ordinal) + 7) % 7
-    val daysInMonth =
-        java.time.YearMonth.of(ym.year, ym.month.ordinal + 1).lengthOfMonth()
-    val weekCount = (leadOffset + daysInMonth + 6) / 7
+    val gridStart = firstOfMonth(ym).startOfGridWeek(weekStart)
+    val weekCount = weekRowsInMonth(ym, weekStart)
 
     return (0 until weekCount).map { row ->
         val days = (0 until 7).map { gridStart.plus(row * 7 + it, DateTimeUnit.DAY) }
-        val weekEvents = instances.filter { ev -> days.any { ev.coversDay(it, zone) } }
-        val (bars, singles) = weekEvents.partition { ev ->
-            ev.isAllDay || days.count { ev.coversDay(it, zone) } > 1
-        }
-        val spans = layoutAllDay(bars, days, zone).map { s ->
-            MonthSpan(
-                event = s.event,
-                startCol = s.startCol,
-                endCol = s.endCol,
-                lane = s.lane,
-                continuesLeft = s.event.coversDay(days.first().minus(1, DateTimeUnit.DAY), zone),
-                continuesRight = s.event.coversDay(days.last().plus(1, DateTimeUnit.DAY), zone),
-            )
-        }
-        MonthWeek(
-            days = days,
-            spans = spans,
-            timedByDay = days.associateWith { d ->
-                singles.filter { it.coversDay(d, zone) }.sortedBy { it.start }
-            },
-            countByDay = days.associateWith { d -> weekEvents.count { it.coversDay(d, zone) } },
-        )
+        layoutCalendarWeek(days, byDay.eventsOn(days), zone)
     }
 }
 
+/**
+ * Events bucketed by the dates they cover, built once per load.
+ *
+ * [layoutCalendarWeek] opens by filtering the instances it was handed down to
+ * the ones touching its seven days. That is fine for a single month's grid, but
+ * the scrolling styles lay out a hundred-odd rows from one query, and scanning
+ * *every* instance in an eleven-month window for each of them made the work grow
+ * with the number of enabled calendars until opening the view stalled.
+ *
+ * Membership is decided by [coversDay] itself rather than by re-deriving the
+ * rule from the timestamps: the all-day and timed cases have enough edge cases
+ * between them (UTC anchoring, exclusive ends, zero-length events at midnight)
+ * that a second implementation would drift. The walk only visits an event's own
+ * candidate days, so the check runs a couple of times per event rather than once
+ * per event per row.
+ */
+internal class DayIndex(instances: List<EventInstance>, private val zone: TimeZone) {
+
+    private val byDay: Map<LocalDate, List<EventInstance>> = buildMap<LocalDate, MutableList<EventInstance>> {
+        instances.forEach { event ->
+            // All-day events are anchored to UTC midnights; timed ones to the
+            // device zone. Either way the candidate span is the event's own
+            // dates, which is one or two days for almost everything.
+            val anchor = if (event.isAllDay) TimeZone.UTC else zone
+            var day = event.start.toLocalDateTime(anchor).date
+            val lastCandidate = event.end.toLocalDateTime(anchor).date
+            while (day <= lastCandidate) {
+                if (event.coversDay(day, zone)) getOrPut(day) { mutableListOf() }.add(event)
+                day = day.plus(1, DateTimeUnit.DAY)
+            }
+        }
+    }
+
+    /** Every event touching any of [days], each listed once, in input order. */
+    fun eventsOn(days: List<LocalDate>): List<EventInstance> {
+        if (days.isEmpty()) return emptyList()
+        val hits = days.flatMap { byDay[it].orEmpty() }
+        // A multi-day event is bucketed on each date it covers, so a row that
+        // holds several of its days would otherwise list it several times.
+        return if (hits.size < 2) hits else hits.distinctBy { it.instanceId }
+    }
+}
+
+/**
+ * Resolve one week row's events for rendering. Split out of [layoutMonthWeeks] so
+ * the continuous style — which streams weeks rather than months and so has no
+ * enclosing [YearMonth] to slice by — lays each row out identically.
+ *
+ * [days] must be the row's seven consecutive dates, in display order.
+ */
+internal fun layoutCalendarWeek(
+    days: List<LocalDate>,
+    instances: List<EventInstance>,
+    zone: TimeZone,
+): MonthWeek {
+    val weekEvents = instances.filter { ev -> days.any { ev.coversDay(it, zone) } }
+    val (bars, singles) = weekEvents.partition { ev ->
+        ev.isAllDay || days.count { ev.coversDay(it, zone) } > 1
+    }
+    val spans = layoutAllDay(bars, days, zone).map { s ->
+        MonthSpan(
+            event = s.event,
+            startCol = s.startCol,
+            endCol = s.endCol,
+            lane = s.lane,
+            continuesLeft = s.event.coversDay(days.first().minus(1, DateTimeUnit.DAY), zone),
+            continuesRight = s.event.coversDay(days.last().plus(1, DateTimeUnit.DAY), zone),
+        )
+    }
+    return MonthWeek(
+        days = days,
+        spans = spans,
+        timedByDay = days.associateWith { d ->
+            singles.filter { it.coversDay(d, zone) }.sortedBy { it.start }
+        },
+        countByDay = days.associateWith { d -> weekEvents.count { it.coversDay(d, zone) } },
+    )
+}
+
+/**
+ * Every event touching each of [days], all-day first then by start time. Unlike
+ * [MonthWeek.timedByDay] this keeps multi-day and all-day events on every date
+ * they cover and applies no display cap, so the split style's day pane can list a
+ * date in full without querying the provider again.
+ */
+internal fun instancesByDay(
+    days: List<LocalDate>,
+    instances: List<EventInstance>,
+    zone: TimeZone,
+): Map<LocalDate, List<EventInstance>> =
+    days.associateWith { day ->
+        instances
+            .filter { it.coversDay(day, zone) }
+            .sortedWith(compareByDescending<EventInstance> { it.isAllDay }.thenBy { it.start })
+    }
+
 /**
  * The on-screen grid spans 6 weeks anchored on [weekStart]. Includes the
  * trailing days of the previous month and the leading days of the next month.
@@ -200,6 +474,198 @@ internal fun monthGridRange(
     return start..end
 }
 
+/**
+ * The sliding window's shape.
+ *
+ * [INITIAL_PAD] is what the first frame waits for — one month either side of the
+ * visible one, so opening the view costs about what the paged style costs. Each
+ * completed load then reaches [GROWTH_STEP] further out until [MAX_PAD], filling
+ * in the months a scroll could reach while the first ones are already on screen.
+ *
+ * [WINDOW_EDGE] is how close the visible range may drift to a loaded edge before
+ * it reloads. It is always kept below the current pad — a trigger at or beyond
+ * the pad would re-fire the moment its own reload landed.
+ */
+private const val INITIAL_PAD = 1
+private const val GROWTH_STEP = 2
+private const val MAX_PAD = 5
+private const val WINDOW_EDGE = 2
+
+/** The reload trigger for a given pad, held strictly inside it. */
+internal fun edgeForPad(pad: Int): Int = minOf(WINDOW_EDGE, pad - 1).coerceAtLeast(0)
+
+/**
+ * Which day the split style should select when the grid lands on [month]:
+ * [today] when the month holds it, otherwise the 1st. Pure so the rule can be
+ * tested without standing up a view model and a provider behind it.
+ */
+internal fun selectionForMonth(month: YearMonth, today: LocalDate): LocalDate =
+    if (YearMonth(today.year, today.month) == month) {
+        today
+    } else {
+        LocalDate(month.year, month.month, 1)
+    }
+
+/**
+ * The window to load for a visible range, or null to keep the current one.
+ *
+ * Kept pure and separate from the view model so the hysteresis — the reason a
+ * scroll doesn't re-query the provider on every frame — is testable on its own.
+ */
+internal fun nextLoadWindow(
+    loaded: IntRange,
+    firstVisible: Int,
+    lastVisible: Int,
+    pad: Int = MAX_PAD,
+): IntRange? {
+    val edge = edgeForPad(pad)
+    val comfortablyInside =
+        firstVisible - edge >= loaded.first && lastVisible + edge <= loaded.last
+    if (comfortablyInside) return null
+    return (firstVisible - pad)..(lastVisible + pad)
+}
+
+/**
+ * The continuous grid addresses months by an absolute index, so the list has one
+ * stable, gap-free coordinate space to scroll through and key its items by.
+ * Index 0 is January 1900; the list runs to [continuousMonthCount].
+ *
+ * Unlike the week indexing this replaced, the coordinate space doesn't depend on
+ * the week-start preference — changing it reflows the rows *inside* a month
+ * block but never moves the block, so a scroll position stays put.
+ */
+private const val MONTH_INDEX_EPOCH_YEAR = 1900
+private const val MONTH_INDEX_END_YEAR = 2100
+
+internal fun monthIndexOf(ym: YearMonth): Int =
+    (ym.year - MONTH_INDEX_EPOCH_YEAR) * 12 + ym.month.ordinal
+
+internal fun yearMonthForIndex(index: Int): YearMonth = YearMonth(
+    MONTH_INDEX_EPOCH_YEAR + index / 12,
+    Month.entries[index % 12],
+)
+
+/** Total months the continuous grid scrolls through (1900 → 2100). */
+internal fun continuousMonthCount(): Int =
+    (MONTH_INDEX_END_YEAR - MONTH_INDEX_EPOCH_YEAR + 1) * 12
+
+/**
+ * Each month occupies two LazyColumn items — its sticky header and the block of
+ * week rows under it — so the two coordinate spaces differ by a factor of two.
+ * Scrolling to a month means scrolling to its header.
+ */
+internal fun itemIndexForMonth(monthIndex: Int): Int = monthIndex * 2
+
+internal fun monthIndexForItem(itemIndex: Int): Int = itemIndex / 2
+
+/**
+ * Hold a load window inside the months that actually exist. The pad
+ * [nextLoadWindow] adds can otherwise push an index past either end of the
+ * 1900–2100 span, and [yearMonthForIndex] has no month to hand back for one.
+ */
+internal fun clampMonthWindow(window: IntRange): IntRange {
+    val last = continuousMonthCount() - 1
+    return window.first.coerceIn(0, last)..window.last.coerceIn(0, last)
+}
+
+internal fun firstOfMonth(ym: YearMonth): LocalDate = LocalDate(ym.year, ym.month, 1)
+
+/**
+ * The Dense style addresses *weeks* by absolute index instead: it has no month
+ * blocks to key by, and a row's identity has to survive the months around it
+ * scrolling past. Index 0 is the first week of 1900 under the active week-start,
+ * so — like the month space — every index is non-negative and the LazyColumn's
+ * item indices and week indices are the same number.
+ *
+ * Unlike month indices these *do* shift with the week-start preference, which is
+ * why the list state is keyed on it.
+ */
+private val WEEK_INDEX_EPOCH = LocalDate(1900, 1, 1)
+private val WEEK_INDEX_END = LocalDate(2100, 12, 31)
+
+internal fun weekIndexOf(date: LocalDate, weekStart: DayOfWeek): Int {
+    val base = WEEK_INDEX_EPOCH.startOfGridWeek(weekStart)
+    return base.daysUntil(date.startOfGridWeek(weekStart)) / 7
+}
+
+internal fun weekStartForIndex(index: Int, weekStart: DayOfWeek): LocalDate =
+    WEEK_INDEX_EPOCH.startOfGridWeek(weekStart).plus(index * 7, DateTimeUnit.DAY)
+
+/** Total weeks the Dense grid scrolls through (1900 → 2100). */
+internal fun continuousWeekCount(weekStart: DayOfWeek): Int =
+    weekIndexOf(WEEK_INDEX_END, weekStart) + 1
+
+/** Which month a Dense row belongs to, for reporting the visible range. */
+internal fun monthIndexForWeek(weekIndex: Int, weekStart: DayOfWeek): Int {
+    // The row's midweek day: a boundary week is reported as whichever month owns
+    // most of it, the same rule the title uses.
+    val midweek = weekStartForIndex(weekIndex, weekStart).plus(3, DateTimeUnit.DAY)
+    return monthIndexOf(YearMonth(midweek.year, midweek.month))
+}
+
+/**
+ * Every week index the months in [window] touch — the Dense rows one month-window
+ * load covers. Widened by a week at each end so the boundary rows either side are
+ * laid out too, rather than flickering as placeholders.
+ */
+internal fun weekWindowFor(window: IntRange, weekStart: DayOfWeek): IntRange {
+    val first = weekIndexOf(firstOfMonth(yearMonthForIndex(window.first)), weekStart) - 1
+    val lastMonthEnd = firstOfMonth(yearMonthForIndex(window.last))
+        .plus(1, DateTimeUnit.MONTH)
+        .minus(1, DateTimeUnit.DAY)
+    return first..(weekIndexOf(lastMonthEnd, weekStart) + 1)
+}
+
+/** How many week rows [ym] needs under [weekStart] — 4 (a non-leap February), 5 or 6. */
+internal fun weekRowsInMonth(ym: YearMonth, weekStart: DayOfWeek): Int {
+    val first = firstOfMonth(ym)
+    val leadOffset = ((first.dayOfWeek.ordinal - weekStart.ordinal) + 7) % 7
+    val daysInMonth = java.time.YearMonth.of(ym.year, ym.month.ordinal + 1).lengthOfMonth()
+    return (leadOffset + daysInMonth + 6) / 7
+}
+
+/**
+ * Strip everything outside [month] from a boundary week row, for the continuous
+ * style's self-contained month blocks.
+ *
+ * The seven [MonthWeek.days] stay put — the row keeps its column geometry, and
+ * the grid decides which cells to draw blank — but the neighbour month's events
+ * are removed: its pills and counts go, and a bar reaching in from (or out into)
+ * it is cut back to the month's own columns. A bar cut this way keeps a flat
+ * cap, which is what says "this continues past the block" rather than "it ends
+ * here".
+ */
+internal fun clipWeekToMonth(week: MonthWeek, month: YearMonth): MonthWeek {
+    val inMonth = week.days.map { it.year == month.year && it.month == month.month }
+    val firstCol = inMonth.indexOfFirst { it }
+    val lastCol = inMonth.indexOfLast { it }
+    // Can't happen for a row of the month's own grid, but a caller-proof no-op
+    // beats an out-of-range crash.
+    if (firstCol == -1) {
+        return week.copy(spans = emptyList(), timedByDay = emptyMap(), countByDay = emptyMap())
+    }
+    val spans = week.spans.mapNotNull { span ->
+        val start = maxOf(span.startCol, firstCol)
+        val end = minOf(span.endCol, lastCol)
+        if (start > end) {
+            null
+        } else {
+            span.copy(
+                startCol = start,
+                endCol = end,
+                continuesLeft = span.continuesLeft || start > span.startCol,
+                continuesRight = span.continuesRight || end < span.endCol,
+            )
+        }
+    }
+    val own = week.days.filterIndexed { col, _ -> inMonth[col] }
+    return week.copy(
+        spans = spans,
+        timedByDay = week.timedByDay.filterKeys { it in own },
+        countByDay = week.countByDay.filterKeys { it in own },
+    )
+}
+
 internal fun LocalDate.startOfGridWeek(weekStart: DayOfWeek): LocalDate {
     // DayOfWeek.ordinal: MONDAY=0..SUNDAY=6 → identical to ISO ordering.
     val offset = ((dayOfWeek.ordinal - weekStart.ordinal) + 7) % 7

app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthViewStyle.kt

@@ -0,0 +1,60 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import androidx.annotation.StringRes
+import de.jeanlucmakiola.calendula.R
+
+/**
+ * How the Month view lays itself out (#38, #53).
+ *
+ * One setting rather than two independent toggles: "vertical scrolling" and
+ * "month plus agenda" would otherwise multiply into four combinations to build
+ * and test, most of which nobody asked for.
+ *
+ * [Split] does **not** replace or disable the Agenda view — that stays a forward
+ * multi-day window with its own range model, while the split pane lists a single
+ * selected day.
+ */
+enum class MonthViewStyle {
+    /** Month pages, swiped left/right. Full event bars and pills per day. */
+    Paged,
+
+    /**
+     * Months stacked into one vertical scroll, each a self-contained block under
+     * its own sticky header: a block shows only its own days, and whitespace
+     * separates it from the next (#38).
+     */
+    Continuous,
+
+    /**
+     * [Continuous] with the seams taken out: one uninterrupted stream of weeks
+     * where months flow into each other. Each date appears exactly once — paging
+     * repeats a boundary week at both ends — and the 1st names its month, the
+     * only marker of where one ends.
+     */
+    Dense,
+
+    /** Compact dots-only grid over a list of the selected day's events (#53). */
+    Split,
+}
+
+/** Both vertically scrolling styles, which share a data window and a list state. */
+val MonthViewStyle.isScrolling: Boolean
+    get() = this == MonthViewStyle.Continuous || this == MonthViewStyle.Dense
+
+@get:StringRes
+val MonthViewStyle.labelRes: Int
+    get() = when (this) {
+        MonthViewStyle.Paged -> R.string.month_style_paged
+        MonthViewStyle.Continuous -> R.string.month_style_continuous
+        MonthViewStyle.Dense -> R.string.month_style_dense
+        MonthViewStyle.Split -> R.string.month_style_split
+    }
+
+@get:StringRes
+val MonthViewStyle.descriptionRes: Int
+    get() = when (this) {
+        MonthViewStyle.Paged -> R.string.month_style_paged_summary
+        MonthViewStyle.Continuous -> R.string.month_style_continuous_summary
+        MonthViewStyle.Dense -> R.string.month_style_dense_summary
+        MonthViewStyle.Split -> R.string.month_style_split_summary
+    }

app/src/main/java/de/jeanlucmakiola/calendula/ui/search/SearchScreen.kt

@@ -54,10 +54,11 @@ import de.jeanlucmakiola.floret.identity.predictiveBack
 import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.floret.components.InlineTextField
 import de.jeanlucmakiola.floret.components.Position
-import de.jeanlucmakiola.calendula.ui.common.currentLocale
+import de.jeanlucmakiola.floret.locale.currentLocale
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
+import de.jeanlucmakiola.calendula.ui.common.eventFill
 import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.common.timeOfDayFormatter
-import de.jeanlucmakiola.floret.components.pastelize
 import de.jeanlucmakiola.floret.components.positionOf
 import java.time.Instant as JavaInstant
 import java.time.ZoneId
@@ -192,6 +193,7 @@ private fun SearchResultRow(
     onClick: () -> Unit,
 ) {
     val dark = isSystemInDarkTheme()
+    val soften = LocalSoftenColors.current
     GroupedRow(
         modifier = modifier,
         title = event.title,
@@ -203,7 +205,7 @@ private fun SearchResultRow(
                 modifier = Modifier
                     .size(width = 6.dp, height = 36.dp)
                     .clip(RoundedCornerShape(3.dp))
-                    .background(pastelize(event.color, dark)),
+                    .background(eventFill(event.color, dark, soften)),
             )
         },
         onClick = onClick,

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/MonthViewStylePicker.kt

@@ -0,0 +1,112 @@
+package de.jeanlucmakiola.calendula.ui.settings
+
+import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.snap
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.draw.clipToBounds
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import de.jeanlucmakiola.calendula.R
+import de.jeanlucmakiola.calendula.ui.common.PickerDescription
+import de.jeanlucmakiola.calendula.ui.month.MonthStylePreview
+import de.jeanlucmakiola.calendula.ui.month.MonthViewStyle
+import de.jeanlucmakiola.calendula.ui.month.descriptionRes
+import de.jeanlucmakiola.calendula.ui.month.labelRes
+import de.jeanlucmakiola.floret.components.FullScreenPicker
+import de.jeanlucmakiola.floret.components.GroupedRow
+import de.jeanlucmakiola.floret.components.SelectedCheck
+import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.floret.identity.rememberReduceMotion
+import kotlinx.datetime.DayOfWeek
+
+/**
+ * The Month view style chooser (#38, #53).
+ *
+ * A live, scaled-down Month view sits above the options and changes as you pick
+ * one, so the choice is made by looking rather than by reading "Continuous" and
+ * guessing. Selecting therefore applies immediately and leaves the picker open —
+ * closing on tap would hide the very thing the screen is for. Back exits, the
+ * same as the App name picker, which stays open for the same reason.
+ *
+ * Under the preview sits the selected style's own one-line blurb, then the
+ * family's standard picker shape: connected single-line grouped rows with a
+ * tonal highlight and [SelectedCheck] on the current one.
+ */
+@Composable
+internal fun MonthViewStylePicker(
+    selected: MonthViewStyle,
+    weekStart: DayOfWeek,
+    onSelect: (MonthViewStyle) -> Unit,
+    onDismiss: () -> Unit,
+) {
+    val options = MonthViewStyle.entries
+    val reduceMotion = rememberReduceMotion()
+    FullScreenPicker(
+        title = stringResource(R.string.settings_month_view_style),
+        onDismiss = onDismiss,
+        predictiveBack = true,
+    ) {
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 12.dp, vertical = 8.dp)
+                .height(PREVIEW_HEIGHT),
+            contentAlignment = Alignment.Center,
+        ) {
+            Crossfade(
+                targetState = selected,
+                animationSpec = if (reduceMotion) snap() else tween(durationMillis = 250),
+                label = "month-style-preview",
+            ) { shown ->
+                // The preview renders the real grid at phone size and scales it
+                // down, so its own corners are square — the frame rounds it.
+                Box(
+                    modifier = Modifier
+                        .clip(PREVIEW_SHAPE)
+                        .background(MaterialTheme.colorScheme.surface)
+                        .clipToBounds(),
+                ) {
+                    MonthStylePreview(
+                        style = shown,
+                        weekStart = weekStart,
+                        height = PREVIEW_HEIGHT,
+                    )
+                }
+            }
+        }
+        // The selected style's own blurb lives here, under its preview, rather
+        // than on every row — the rows stay single-line and dense, and the words
+        // describe exactly what is being shown above.
+        PickerDescription(stringResource(selected.descriptionRes))
+        options.forEachIndexed { index, style ->
+            val isSelected = style == selected
+            GroupedRow(
+                title = stringResource(style.labelRes),
+                position = positionOf(index, options.size),
+                selected = isSelected,
+                trailing = if (isSelected) {
+                    { SelectedCheck() }
+                } else {
+                    null
+                },
+                // Applies straight away; the preview above is the confirmation,
+                // so there is nothing to dismiss for.
+                onClick = { onSelect(style) },
+            )
+        }
+    }
+}
+
+private val PREVIEW_HEIGHT = 280.dp
+private val PREVIEW_SHAPE = RoundedCornerShape(12.dp)

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsScreen.kt

@@ -23,6 +23,8 @@ import androidx.compose.animation.slideInHorizontally
 import androidx.compose.animation.slideOutHorizontally
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -42,8 +44,8 @@ import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
 import androidx.compose.material.icons.filled.BugReport
 import androidx.compose.material.icons.filled.Cake
 import androidx.compose.material.icons.filled.CalendarMonth
-import androidx.compose.material.icons.filled.Dashboard
 import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.filled.Dashboard
 import androidx.compose.material.icons.filled.DragHandle
 import androidx.compose.material.icons.filled.SwapVert
 import androidx.compose.material.icons.filled.ExpandLess
@@ -75,6 +77,7 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.colorResource
@@ -93,6 +96,7 @@ import androidx.lifecycle.LifecycleEventObserver
 import androidx.lifecycle.compose.LocalLifecycleOwner
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.calendula.R
+import de.jeanlucmakiola.calendula.data.appname.LauncherName
 import de.jeanlucmakiola.calendula.data.contacts.hasContactsPermission
 import de.jeanlucmakiola.calendula.data.prefs.PastEventDisplay
 import de.jeanlucmakiola.floret.reminders.ReminderOverride
@@ -100,6 +104,7 @@ import de.jeanlucmakiola.floret.reminders.reminderOverrideFor
 import de.jeanlucmakiola.calendula.data.prefs.ThemeMode
 import de.jeanlucmakiola.calendula.data.prefs.TimeFormatPref
 import de.jeanlucmakiola.calendula.data.prefs.WeekStartPref
+import de.jeanlucmakiola.calendula.data.prefs.resolveFirstDay
 import de.jeanlucmakiola.calendula.domain.EventFormField
 import de.jeanlucmakiola.calendula.domain.contacts.SpecialDateType
 import de.jeanlucmakiola.calendula.qs.NewEventTileService
@@ -121,6 +126,7 @@ import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.floret.components.InlineTextField
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
 import de.jeanlucmakiola.calendula.ui.common.QuickSwitchConfig
+import de.jeanlucmakiola.calendula.ui.month.labelRes
 import de.jeanlucmakiola.floret.components.ReorderableColumn
 import de.jeanlucmakiola.floret.components.ReorderableRowHeight
 import de.jeanlucmakiola.calendula.ui.common.icon
@@ -131,10 +137,12 @@ import de.jeanlucmakiola.floret.components.Position
 import de.jeanlucmakiola.calendula.ui.common.REMINDER_PRESETS
 import de.jeanlucmakiola.calendula.ui.common.ReminderDefaultPicker
 import de.jeanlucmakiola.calendula.ui.common.TimePickerAlert
+import de.jeanlucmakiola.floret.components.SelectedCheck
 import de.jeanlucmakiola.floret.components.positionOf
 import de.jeanlucmakiola.calendula.ui.common.reminderLeadTimeLabel
+import de.jeanlucmakiola.calendula.ui.common.SnoozeDurationPicker
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarSlideSpec
-import de.jeanlucmakiola.calendula.ui.common.currentLocale
+import de.jeanlucmakiola.floret.locale.currentLocale
 import de.jeanlucmakiola.calendula.ui.common.eventFormFieldIcon
 import de.jeanlucmakiola.calendula.ui.common.eventFormFieldLabel
 import de.jeanlucmakiola.calendula.ui.theme.BundledFont
@@ -486,8 +494,10 @@ private fun AppearanceScreen(
     var showPastEvents by remember { mutableStateOf(false) }
     var showBrandFont by remember { mutableStateOf(false) }
     var showPlainFont by remember { mutableStateOf(false) }
+    var showAppName by remember { mutableStateOf(false) }
 
     val fonts by viewModel.fontState.collectAsStateWithLifecycle()
+    val launcherName by viewModel.launcherName.collectAsStateWithLifecycle()
     // A picked file that didn't parse as a font: tell the user and keep the old choice.
     val context = LocalContext.current
     val importFailedMessage = stringResource(R.string.settings_font_import_failed)
@@ -516,7 +526,7 @@ private fun AppearanceScreen(
             } else {
                 stringResource(R.string.settings_dynamic_color_unavailable)
             },
-            position = Position.Bottom,
+            position = Position.Middle,
             trailing = {
                 Switch(
                     checked = state.dynamicColor,
@@ -530,6 +540,18 @@ private fun AppearanceScreen(
                 null
             },
         )
+        GroupedRow(
+            title = stringResource(R.string.settings_soften_colors),
+            summary = stringResource(R.string.settings_soften_colors_summary),
+            position = Position.Bottom,
+            trailing = {
+                Switch(
+                    checked = state.softenColors,
+                    onCheckedChange = viewModel::setSoftenColors,
+                )
+            },
+            onClick = { viewModel.setSoftenColors(!state.softenColors) },
+        )
 
         Spacer(Modifier.height(16.dp))
 
@@ -558,6 +580,18 @@ private fun AppearanceScreen(
             position = Position.Top,
             onClick = { showDefaultView = true },
         )
+        GroupedRow(
+            title = stringResource(R.string.settings_today_toolbar),
+            summary = stringResource(R.string.settings_today_toolbar_summary),
+            position = Position.Middle,
+            trailing = {
+                Switch(
+                    checked = state.todayButtonInToolbar,
+                    onCheckedChange = viewModel::setTodayButtonInToolbar,
+                )
+            },
+            onClick = { viewModel.setTodayButtonInToolbar(!state.todayButtonInToolbar) },
+        )
         GroupedRow(
             title = stringResource(R.string.settings_week_start),
             summary = weekStartLabel(state.weekStart),
@@ -630,6 +664,18 @@ private fun AppearanceScreen(
             position = Position.Middle,
             onClick = { showAgendaWidgetRange = true },
         )
+        GroupedRow(
+            title = stringResource(R.string.settings_agenda_show_today),
+            summary = stringResource(R.string.settings_agenda_show_today_hint),
+            position = Position.Middle,
+            trailing = {
+                Switch(
+                    checked = state.agendaShowToday,
+                    onCheckedChange = viewModel::setAgendaShowToday,
+                )
+            },
+            onClick = { viewModel.setAgendaShowToday(!state.agendaShowToday) },
+        )
         GroupedRow(
             title = stringResource(R.string.settings_agenda_range_bar),
             summary = stringResource(R.string.settings_agenda_range_bar_hint),
@@ -642,8 +688,58 @@ private fun AppearanceScreen(
             },
             onClick = { viewModel.setAgendaShowRangeBar(!state.agendaShowRangeBar) },
         )
+
+        Spacer(Modifier.height(16.dp))
+
+        // App name — chooses the launcher label between "Calendula" and "Calendar"
+        // (issue #44). Own group: it's a launcher/system concern, not calendar
+        // formatting. A sub-page chooser (not a switch), matching the app's other
+        // "choose one" settings and leaving room for more names later.
+        GroupedRow(
+            title = stringResource(R.string.settings_app_name),
+            summary = launcherNameLabel(launcherName),
+            position = Position.Alone,
+            onClick = { showAppName = true },
+        )
     }
 
+    if (showAppName) {
+        FullScreenPicker(
+            title = stringResource(R.string.settings_app_name),
+            onDismiss = { showAppName = false },
+            predictiveBack = true,
+        ) {
+            // Show both names as launcher-mark previews so the user sees what
+            // they'd switch to, not just the current state. Tapping applies
+            // immediately and highlights — the picker stays open so the change is
+            // visible; back exits.
+            Text(
+                text = stringResource(R.string.settings_app_name_summary),
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                textAlign = TextAlign.Center,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 24.dp),
+            )
+            Spacer(Modifier.height(24.dp))
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 16.dp),
+                horizontalArrangement = Arrangement.spacedBy(16.dp),
+            ) {
+                LauncherName.entries.forEach { option ->
+                    AppNameOptionCard(
+                        name = option,
+                        selected = launcherName == option,
+                        onClick = { viewModel.setLauncherName(option) },
+                        modifier = Modifier.weight(1f),
+                    )
+                }
+            }
+        }
+    }
     if (showTheme) {
         OptionPicker(
             title = stringResource(R.string.settings_theme),
@@ -753,12 +849,24 @@ private fun ViewsScreen(
     viewModel: SettingsViewModel,
     onBack: () -> Unit,
 ) {
+    var showMonthStyle by remember { mutableStateOf(false) }
+
     CollapsingScaffold(
         title = stringResource(R.string.settings_section_views),
         onBack = onBack,
     ) {
         val config = state.quickSwitchConfig
 
+        // Per-view layout, above the cross-view switcher/order settings below.
+        SectionHeader(stringResource(R.string.settings_month_header))
+        GroupedRow(
+            title = stringResource(R.string.settings_month_view_style),
+            summary = stringResource(state.monthViewStyle.labelRes),
+            position = Position.Alone,
+            onClick = { showMonthStyle = true },
+        )
+
+        Spacer(Modifier.height(24.dp))
         SectionHeader(stringResource(R.string.settings_quick_switch_header))
         SettingsHint(stringResource(R.string.settings_quick_switch_hint))
         Spacer(Modifier.height(8.dp))
@@ -804,6 +912,16 @@ private fun ViewsScreen(
             )
         }
     }
+
+    if (showMonthStyle) {
+        MonthViewStylePicker(
+            selected = state.monthViewStyle,
+            // The preview is a real grid, so it uses the real week start too.
+            weekStart = state.weekStart.resolveFirstDay(currentLocale()),
+            onSelect = viewModel::setMonthViewStyle,
+            onDismiss = { showMonthStyle = false },
+        )
+    }
 }
 
 /** One reorderable view row: the view's icon and name, an optional [trailing]
@@ -1056,13 +1174,7 @@ private fun NotificationsScreen(
             },
             position = Position.Top,
             trailing = if (batteryExempt) {
-                {
-                    Icon(
-                        imageVector = Icons.Default.Check,
-                        contentDescription = null,
-                        tint = MaterialTheme.colorScheme.primary,
-                    )
-                }
+                { SelectedCheck() }
             } else {
                 null
             },
@@ -1174,10 +1286,9 @@ private fun NotificationsScreen(
     }
 
     if (showSnooze) {
-        OptionPicker(
+        SnoozeDurationPicker(
             title = stringResource(R.string.settings_snooze_duration),
-            predictiveBack = true,
-            options = SNOOZE_PRESETS,
+            presets = SNOOZE_PRESETS,
             selected = state.snoozeMinutes,
             label = { snoozeDurationLabel(it) },
             onSelect = { viewModel.setSnoozeMinutes(it) },
@@ -1668,6 +1779,98 @@ private fun openUrl(context: Context, url: String) {
     runCatching { context.startActivity(intent) }
 }
 
+/** The display name for a launcher-label choice (issue #44). */
+@Composable
+private fun launcherNameLabel(name: LauncherName): String = stringResource(
+    when (name) {
+        LauncherName.CALENDULA -> R.string.app_name
+        LauncherName.CALENDAR -> R.string.app_name_calendar_alias
+    },
+)
+
+/**
+ * One selectable launcher-name preview in the App name picker (issue #44): the
+ * app's launcher mark over the name, framed as a card. The active one carries a
+ * primary border, a tinted container and a check; tapping selects it. The mark
+ * is the same for both — only the label changes — so the card previews exactly
+ * what the home screen will read.
+ */
+@Composable
+private fun AppNameOptionCard(
+    name: LauncherName,
+    selected: Boolean,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    val shape = RoundedCornerShape(24.dp)
+    val borderColor = if (selected) {
+        MaterialTheme.colorScheme.primary
+    } else {
+        MaterialTheme.colorScheme.outlineVariant
+    }
+    val containerColor = if (selected) {
+        MaterialTheme.colorScheme.primaryContainer.copy(alpha = 0.4f)
+    } else {
+        MaterialTheme.colorScheme.surfaceContainerHigh
+    }
+    Column(
+        modifier = modifier
+            .clip(shape)
+            .background(containerColor)
+            .border(width = if (selected) 2.dp else 1.dp, color = borderColor, shape = shape)
+            .clickable(onClick = onClick)
+            .padding(vertical = 20.dp, horizontal = 16.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.spacedBy(12.dp),
+    ) {
+        // The adaptive launcher mark, reconstructed as a squircle (as in the
+        // onboarding BrandHero) so it renders identically everywhere.
+        Box(
+            modifier = Modifier
+                .size(64.dp)
+                .clip(RoundedCornerShape(18.dp))
+                .background(colorResource(R.color.ic_launcher_background)),
+        ) {
+            Image(
+                painter = painterResource(R.drawable.ic_launcher_foreground),
+                contentDescription = null,
+                modifier = Modifier.fillMaxSize(),
+            )
+        }
+        Text(
+            text = launcherNameLabel(name),
+            style = MaterialTheme.typography.titleMedium,
+            color = MaterialTheme.colorScheme.onSurface,
+            textAlign = TextAlign.Center,
+            maxLines = 1,
+        )
+        // Selection indicator: a filled check when active, an empty ring otherwise.
+        Box(
+            modifier = Modifier
+                .size(24.dp)
+                .clip(CircleShape)
+                .background(if (selected) MaterialTheme.colorScheme.primary else Color.Transparent)
+                .then(
+                    if (selected) {
+                        Modifier
+                    } else {
+                        Modifier.border(1.dp, MaterialTheme.colorScheme.outlineVariant, CircleShape)
+                    },
+                ),
+            contentAlignment = Alignment.Center,
+        ) {
+            if (selected) {
+                Icon(
+                    imageVector = Icons.Filled.Check,
+                    contentDescription = null,
+                    tint = MaterialTheme.colorScheme.onPrimary,
+                    modifier = Modifier.size(16.dp),
+                )
+            }
+        }
+    }
+}
+
 @Composable
 private fun themeLabel(mode: ThemeMode): String = stringResource(
     when (mode) {
@@ -1809,13 +2012,7 @@ private fun FontOptionRow(
             }
         },
         trailing = if (selected) {
-            {
-                Icon(
-                    imageVector = Icons.Default.Check,
-                    contentDescription = null,
-                    tint = MaterialTheme.colorScheme.primary,
-                )
-            }
+            { SelectedCheck() }
         } else {
             null
         },

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsUiState.kt

@@ -13,6 +13,7 @@ import de.jeanlucmakiola.calendula.ui.agenda.AgendaRange
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
 import de.jeanlucmakiola.calendula.ui.common.QuickSwitchConfig
+import de.jeanlucmakiola.calendula.ui.month.MonthViewStyle
 
 /**
  * Settings screen state (M4). Persisted preferences are instant to read, so
@@ -24,6 +25,8 @@ data class SettingsUiState(
     val themeMode: ThemeMode = ThemeMode.SYSTEM,
     val dynamicColor: Boolean = true,
     val dynamicColorAvailable: Boolean = true,
+    /** Whether raw provider colours are softened to theme-fitting pastels (#36). */
+    val softenColors: Boolean = true,
     val weekStart: WeekStartPref = WeekStartPref.Auto,
     /** Clock convention for time labels (v2.11). AUTO follows the system setting. */
     val timeFormat: TimeFormatPref = TimeFormatPref.AUTO,
@@ -35,16 +38,22 @@ data class SettingsUiState(
     val dimCompletedEvents: Boolean = false,
     /** Whether the Month grid shows calendar-week numbers in a left gutter (#25). */
     val showWeekNumbers: Boolean = false,
+    /** Whether the jump-to-today control sits in the top bar instead of the FAB (#60). */
+    val todayButtonInToolbar: Boolean = false,
     /** How far ahead the in-app Agenda screen shows events (v2.11). */
     val agendaScreenRange: AgendaRange = AgendaRange.Month,
     /** How far ahead the agenda widget shows events (v2.11). */
     val agendaWidgetRange: AgendaRange = AgendaRange.Month,
+    /** Whether the agenda (screen + widget) always anchors today at the top (#35). */
+    val agendaShowToday: Boolean = true,
     /** Whether the agenda shows its top range bar — header + switcher (v2.11). */
     val agendaShowRangeBar: Boolean = true,
     /** The calendar view the app opens on, and the home of the view back stack (M1). */
     val defaultView: CalendarView = CalendarView.Week,
     /** Which views the top-bar quick-switch button cycles through, and their order (#24). */
     val quickSwitchConfig: QuickSwitchConfig = QuickSwitchConfig.Default,
+    /** How the Month view lays itself out: pages, continuous scroll, or split (#38, #53). */
+    val monthViewStyle: MonthViewStyle = MonthViewStyle.Paged,
     /** Order of the views in the navigation drawer (#24); every view is always listed. */
     val drawerViewOrder: List<CalendarView> = IMPLEMENTED_VIEWS,
     /** Optional event-form fields shown by default (rest behind "more fields"). */

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsViewModel.kt

@@ -10,6 +10,8 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import dagger.hilt.android.qualifiers.ApplicationContext
+import de.jeanlucmakiola.calendula.data.appname.LauncherName
+import de.jeanlucmakiola.calendula.data.appname.LauncherNameManager
 import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.contacts.SpecialDatesCalendarSpec
 import de.jeanlucmakiola.calendula.data.contacts.SpecialDatesScheduler
@@ -33,16 +35,20 @@ import de.jeanlucmakiola.calendula.ui.agenda.AgendaRange
 import de.jeanlucmakiola.calendula.ui.agenda.storageValue
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.QuickSwitchConfig
+import de.jeanlucmakiola.calendula.ui.month.MonthViewStyle
 import de.jeanlucmakiola.calendula.ui.theme.AppFontSettings
 import de.jeanlucmakiola.calendula.ui.theme.FONT_CUSTOM_TOKEN
 import de.jeanlucmakiola.calendula.widget.agenda.AGENDA_PAST_DISPLAY_KEY
 import de.jeanlucmakiola.calendula.widget.agenda.AGENDA_RANGE_KEY
+import de.jeanlucmakiola.calendula.widget.agenda.AGENDA_SHOW_TODAY_STATE_KEY
 import de.jeanlucmakiola.calendula.widget.agenda.AgendaWidget
 import de.jeanlucmakiola.calendula.widget.month.MonthWidget
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.catch
@@ -61,6 +67,7 @@ class SettingsViewModel @Inject constructor(
     repository: CalendarRepository,
     private val specialDatesEngine: SpecialDatesSyncEngine,
     specialDatesSpec: SpecialDatesCalendarSpec,
+    private val launcherNameManager: LauncherNameManager,
     @IoDispatcher private val io: CoroutineDispatcher,
     @ApplicationContext private val appContext: Context,
 ) : ViewModel() {
@@ -116,14 +123,25 @@ class SettingsViewModel @Inject constructor(
                 prefs.agendaScreenRange,
                 prefs.agendaWidgetRange,
                 prefs.timeFormat,
-                // Two grid-display toggles folded into one flow so they fit this
-                // group — the outer combine is already at its five-arg limit.
-                combine(prefs.showHourLines, prefs.showWeekNumbers, ::Pair),
-            ) { view, screenRange, widgetRange, timeFormat, gridToggles ->
+                // Display toggles folded into one flow so they fit this group —
+                // the outer combine is already at its five-arg limit.
+                combine(
+                    prefs.showHourLines,
+                    prefs.showWeekNumbers,
+                    prefs.agendaShowToday,
+                    prefs.softenCalendarColors,
+                    prefs.todayButtonInToolbar,
+                ) { hourLines, weekNumbers, showToday, soften, todayInToolbar ->
+                    DisplayToggles(hourLines, weekNumbers, showToday, soften, todayInToolbar)
+                },
+            ) { view, screenRange, widgetRange, timeFormat, toggles ->
                 ViewSettings(
                     view, screenRange, widgetRange, timeFormat,
-                    showHourLines = gridToggles.first,
-                    showWeekNumbers = gridToggles.second,
+                    showHourLines = toggles.showHourLines,
+                    showWeekNumbers = toggles.showWeekNumbers,
+                    agendaShowToday = toggles.agendaShowToday,
+                    softenColors = toggles.softenColors,
+                    todayButtonInToolbar = toggles.todayButtonInToolbar,
                 )
             },
             combine(
@@ -133,8 +151,12 @@ class SettingsViewModel @Inject constructor(
                 prefs.dimCompletedEvents,
                 // View customisation (#24) folded into one flow so it fits this
                 // group — the outer combine is already at its five-arg limit.
-                combine(prefs.quickSwitchConfig, prefs.drawerViewOrder) { quickSwitch, drawer ->
-                    ViewCustomization(quickSwitch, drawer)
+                combine(
+                    prefs.quickSwitchConfig,
+                    prefs.drawerViewOrder,
+                    prefs.monthViewStyle,
+                ) { quickSwitch, drawer, monthStyle ->
+                    ViewCustomization(quickSwitch, drawer, monthStyle)
                 },
             ) { showRangeBar, autofocus, pastEvents, dimCompleted, viewCustomization ->
                 MiscSettings(showRangeBar, autofocus, pastEvents, dimCompleted, viewCustomization)
@@ -147,12 +169,16 @@ class SettingsViewModel @Inject constructor(
                 timeFormat = views.timeFormat,
                 showHourLines = views.showHourLines,
                 showWeekNumbers = views.showWeekNumbers,
+                agendaShowToday = views.agendaShowToday,
+                softenColors = views.softenColors,
+                todayButtonInToolbar = views.todayButtonInToolbar,
                 agendaShowRangeBar = misc.showRangeBar,
                 autofocusEventTitle = misc.autofocusEventTitle,
                 pastEventDisplay = misc.pastEventDisplay,
                 dimCompletedEvents = misc.dimCompletedEvents,
                 quickSwitchConfig = misc.viewCustomization.quickSwitch,
                 drawerViewOrder = misc.viewCustomization.drawerOrder,
+                monthViewStyle = misc.viewCustomization.monthViewStyle,
                 allowColorOnUnsupportedCalendars = defaults.allowColor,
                 defaultReminderMinutes = defaults.defaultReminder,
                 defaultAllDayReminderMinutes = defaults.allDayReminder,
@@ -187,6 +213,28 @@ class SettingsViewModel @Inject constructor(
         initialValue = AppFontSettings(),
     )
 
+    /**
+     * The launcher-label choice (issue #44). Backed by the manifest aliases'
+     * component-enabled state rather than a stored preference, so it's read
+     * imperatively via [LauncherNameManager] and held here in its own flow — the
+     * main settings combine is already at its arity limit and this isn't a
+     * DataStore flow anyway.
+     *
+     * Seeded with the manifest default and corrected off-thread rather than read
+     * in the initializer: `getComponentEnabledSetting` is a binder round-trip to
+     * system_server, and this ViewModel is constructed on the main thread while
+     * Settings is opening. The row it feeds is well below the fold, so the
+     * one-frame correction is never visible.
+     */
+    private val _launcherName = MutableStateFlow(LauncherName.CALENDULA)
+    val launcherName: StateFlow<LauncherName> = _launcherName.asStateFlow()
+
+    init {
+        viewModelScope.launch {
+            _launcherName.value = withContext(io) { launcherNameManager.current() }
+        }
+    }
+
     // Emitted when a picked font file couldn't be read as a font; the screen
     // surfaces it and the previous selection stays put.
     private val _fontImportFailed = MutableSharedFlow<Unit>(extraBufferCapacity = 1)
@@ -220,6 +268,17 @@ class SettingsViewModel @Inject constructor(
         val timeFormat: TimeFormatPref,
         val showHourLines: Boolean,
         val showWeekNumbers: Boolean,
+        val agendaShowToday: Boolean,
+        val softenColors: Boolean,
+        val todayButtonInToolbar: Boolean,
+    )
+
+    private data class DisplayToggles(
+        val showHourLines: Boolean,
+        val showWeekNumbers: Boolean,
+        val agendaShowToday: Boolean,
+        val softenColors: Boolean,
+        val todayButtonInToolbar: Boolean,
     )
 
     private data class MiscSettings(
@@ -233,6 +292,7 @@ class SettingsViewModel @Inject constructor(
     private data class ViewCustomization(
         val quickSwitch: QuickSwitchConfig,
         val drawerOrder: List<CalendarView>,
+        val monthViewStyle: MonthViewStyle,
     )
 
     /** Contact special-dates sub-page (issue #15); its own flow — the main state is full. */
@@ -332,6 +392,19 @@ class SettingsViewModel @Inject constructor(
         viewModelScope.launch { prefs.setDynamicColor(enabled) }
     }
 
+    fun setSoftenColors(enabled: Boolean) {
+        viewModelScope.launch {
+            prefs.setSoftenCalendarColors(enabled)
+            // Both widgets paint event colours through the same softener, so a
+            // change has to redraw them too (they read the flag in their data
+            // preamble, like is24Hour).
+            widgetRefreshMutex.withLock {
+                AgendaWidget().updateAll(appContext)
+                MonthWidget().updateAll(appContext)
+            }
+        }
+    }
+
     fun setFont(role: FontRole, token: String) {
         viewModelScope.launch {
             when (role) {
@@ -398,6 +471,22 @@ class SettingsViewModel @Inject constructor(
         viewModelScope.launch { prefs.setAgendaShowRangeBar(enabled) }
     }
 
+    fun setAgendaShowToday(enabled: Boolean) {
+        viewModelScope.launch {
+            prefs.setAgendaShowToday(enabled)
+            // The agenda widget reads this reactively, so push it into each
+            // instance's Glance state and recompose — same reliable-update path as
+            // setPastEventDisplay (updateAll alone won't re-run the data preamble).
+            widgetRefreshMutex.withLock {
+                val manager = GlanceAppWidgetManager(appContext)
+                manager.getGlanceIds(AgendaWidget::class.java).forEach { id ->
+                    updateAppWidgetState(appContext, id) { it[AGENDA_SHOW_TODAY_STATE_KEY] = enabled }
+                }
+                AgendaWidget().updateAll(appContext)
+            }
+        }
+    }
+
     fun setTimeFormat(pref: TimeFormatPref) {
         viewModelScope.launch { prefs.setTimeFormat(pref) }
     }
@@ -410,6 +499,26 @@ class SettingsViewModel @Inject constructor(
         viewModelScope.launch { prefs.setShowWeekNumbers(enabled) }
     }
 
+    fun setTodayButtonInToolbar(enabled: Boolean) {
+        viewModelScope.launch { prefs.setTodayButtonInToolbar(enabled) }
+    }
+
+    /**
+     * Switch the launcher label between "Calendula" and "Calendar" (issue #44).
+     * The card highlights immediately, then settles on whatever the component
+     * state actually reports — the two `setComponentEnabledSetting` calls are
+     * binder round-trips, so they don't belong on the main thread either.
+     */
+    fun setLauncherName(name: LauncherName) {
+        _launcherName.value = name
+        viewModelScope.launch {
+            _launcherName.value = withContext(io) {
+                launcherNameManager.set(name)
+                launcherNameManager.current()
+            }
+        }
+    }
+
     fun setPastEventDisplay(mode: PastEventDisplay) {
         viewModelScope.launch {
             prefs.setPastEventDisplay(mode)
@@ -460,6 +569,10 @@ class SettingsViewModel @Inject constructor(
         viewModelScope.launch { prefs.updateQuickSwitch { it.copy(order = order) } }
     }
 
+    fun setMonthViewStyle(style: MonthViewStyle) {
+        viewModelScope.launch { prefs.setMonthViewStyle(style) }
+    }
+
     fun setDrawerViewOrder(order: List<CalendarView>) {
         viewModelScope.launch { prefs.setDrawerViewOrder(order) }
     }

app/src/main/java/de/jeanlucmakiola/calendula/ui/week/WeekScreen.kt

@@ -5,7 +5,6 @@ import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.animateDpAsState
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.gestures.detectHorizontalDragGestures
 import androidx.compose.foundation.gestures.detectTapGestures
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
@@ -49,7 +48,6 @@ import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
@@ -77,20 +75,26 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.hasEnded
+import de.jeanlucmakiola.calendula.ui.common.formatCalendarTitle
 import de.jeanlucmakiola.calendula.ui.common.CalendarDrawer
 import de.jeanlucmakiola.calendula.ui.common.CalendarFabColumn
+import de.jeanlucmakiola.calendula.ui.common.TodayAction
 import de.jeanlucmakiola.calendula.ui.common.CalendarFailure
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
 import de.jeanlucmakiola.calendula.ui.common.EventDimAlpha
 import de.jeanlucmakiola.calendula.ui.common.LocalDimCutoff
+import de.jeanlucmakiola.calendula.ui.common.LocalSoftenColors
+import de.jeanlucmakiola.calendula.ui.common.eventFill
+import de.jeanlucmakiola.calendula.ui.common.eventInk
 import de.jeanlucmakiola.calendula.ui.common.NowLine
 import de.jeanlucmakiola.calendula.ui.common.rememberCurrentMinute
 import de.jeanlucmakiola.calendula.ui.common.ViewSwitcherPill
 import de.jeanlucmakiola.calendula.ui.common.calendarSlideTransition
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarFadeSpec
+import de.jeanlucmakiola.calendula.ui.common.rememberCalendarPageSwipe
 import de.jeanlucmakiola.floret.identity.rememberReduceMotion
-import de.jeanlucmakiola.calendula.ui.common.currentLocale
+import de.jeanlucmakiola.floret.locale.currentLocale
 import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.common.LocalShowHourLines
 import de.jeanlucmakiola.calendula.ui.common.formatHourLabel
@@ -98,7 +102,6 @@ import de.jeanlucmakiola.calendula.ui.common.formatMinuteOfDay
 import de.jeanlucmakiola.calendula.ui.common.hourSeparatorLines
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarSlideSpec
 import de.jeanlucmakiola.calendula.ui.common.next
-import de.jeanlucmakiola.floret.components.pastelize
 import de.jeanlucmakiola.floret.time.isoWeekNumber
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
@@ -114,6 +117,10 @@ import kotlin.math.roundToInt
 
 private val HOUR_HEIGHT = 56.dp
 private val GUTTER_WIDTH = 48.dp
+/** Start inset for the gutter's content (week badge + hour labels) so it centres
+ *  on the top bar's hamburger: with a 48dp gutter, 8dp lands the centre at 28dp
+ *  (the app bar's 4dp inset + 24dp half icon button). */
+private val GUTTER_CONTENT_START_INSET = 8.dp
 private val MIN_EVENT_HEIGHT = 24.dp
 private val ALL_DAY_ROW_HEIGHT = 24.dp
 private val ALL_DAY_VERTICAL_PADDING = 6.dp
@@ -137,6 +144,7 @@ fun WeekScreen(
     onCreateEvent: (LocalDate, Int?) -> Unit,
     quickSwitchViews: List<CalendarView> = IMPLEMENTED_VIEWS,
     drawerViewOrder: List<CalendarView> = IMPLEMENTED_VIEWS,
+    todayInToolbar: Boolean = false,
     modifier: Modifier = Modifier,
     viewModel: WeekViewModel = hiltViewModel(),
 ) {
@@ -174,6 +182,13 @@ fun WeekScreen(
         else -> true
     }
 
+    // Drives whether the title carries the year. Falls back to the clock only
+    // while the first load is in flight, when there is no state to read today from.
+    val currentYear = when (val s = state) {
+        is WeekUiState.Success -> s.today.year
+        else -> Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault()).date.year
+    }
+
     // Slide direction for the week transition: +1 = next, -1 = prev, 0 = jump.
     var slideDir by remember { mutableIntStateOf(0) }
     val goNext = { slideDir = 1; viewModel.goToNext() }
@@ -222,16 +237,19 @@ fun WeekScreen(
             topBar = {
                 WeekTopBar(
                     weekStart = weekStart,
+                    currentYear = currentYear,
                     selectedView = selectedView,
                     onCycleView = { onSelectView(selectedView.next(quickSwitchViews)) },
                     onOpenDrawer = { scope.launch { drawerState.open() } },
                     onOpenSearch = onOpenSearch,
+                    showTodayButton = todayInToolbar,
+                    onToday = jumpToToday,
                     scrollBehavior = scrollBehavior,
                 )
             },
             floatingActionButton = {
                 CalendarFabColumn(
-                    todayVisible = !isOnCurrentWeek,
+                    todayVisible = !isOnCurrentWeek && !todayInToolbar,
                     todayText = stringResource(R.string.week_today_action),
                     onToday = jumpToToday,
                     onCreate = {
@@ -277,8 +295,6 @@ private fun WeekContent(
     modifier: Modifier = Modifier,
 ) {
     val density = LocalDensity.current
-    val threshold = with(density) { 24.dp.toPx() }
-    var dragAccum by remember { mutableFloatStateOf(0f) }
     val slideSpec = rememberCalendarSlideSpec()
     val fadeSpec = rememberCalendarFadeSpec()
     val reduceMotion = rememberReduceMotion()
@@ -310,20 +326,7 @@ private fun WeekContent(
     // vertical scroll: a horizontal drag only crosses *this* detector's slop,
     // while a vertical drag is consumed by the inner scroll first — so the two
     // gestures coexist without fighting.
-    val swipeModifier = Modifier.pointerInput(Unit) {
-        detectHorizontalDragGestures(
-            onDragStart = { dragAccum = 0f },
-            onDragEnd = {
-                when {
-                    dragAccum < -threshold -> onSwipeNext()
-                    dragAccum > threshold -> onSwipePrev()
-                }
-                dragAccum = 0f
-            },
-            onDragCancel = { dragAccum = 0f },
-            onHorizontalDrag = { _, drag -> dragAccum += drag },
-        )
-    }
+    val swipeModifier = rememberCalendarPageSwipe(onSwipeNext, onSwipePrev)
 
     AnimatedContent(
         targetState = state,
@@ -389,16 +392,20 @@ private fun WeekSuccess(
 @Composable
 private fun WeekTopBar(
     weekStart: LocalDate,
+    currentYear: Int,
     selectedView: CalendarView,
     onCycleView: () -> Unit,
     onOpenDrawer: () -> Unit,
     onOpenSearch: () -> Unit,
+    showTodayButton: Boolean,
+    onToday: () -> Unit,
     scrollBehavior: androidx.compose.material3.TopAppBarScrollBehavior,
 ) {
+    val locale = currentLocale()
     TopAppBar(
         title = {
             Text(
-                text = formatWeekRange(weekStart),
+                text = formatWeekTitle(weekStart, locale, currentYear),
                 style = MaterialTheme.typography.titleLarge,
             )
         },
@@ -411,6 +418,7 @@ private fun WeekTopBar(
             }
         },
         actions = {
+            TodayAction(show = showTodayButton, onToday = onToday)
             IconButton(onClick = onOpenSearch) {
                 Icon(
                     imageVector = Icons.Default.Search,
@@ -448,9 +456,10 @@ private fun WeekDayHeader(
             .padding(top = 4.dp, bottom = 8.dp),
     ) {
         // Mirror the day-column layout (empty weekday line + spacer) so the
-        // badge lines up vertically with the date numbers.
+        // badge lines up vertically with the date numbers. The start inset centres
+        // the badge on the top bar's hamburger (see GUTTER_CONTENT_START_INSET).
         Column(
-            modifier = Modifier.width(GUTTER_WIDTH),
+            modifier = Modifier.width(GUTTER_WIDTH).padding(start = GUTTER_CONTENT_START_INSET),
             horizontalAlignment = Alignment.CenterHorizontally,
         ) {
             Text(text = " ", style = MaterialTheme.typography.labelSmall)
@@ -584,9 +593,11 @@ private fun AllDayBar(
     val title = event.title.ifBlank { stringResource(R.string.event_untitled) }
     val dimCutoff = LocalDimCutoff.current
     val dimmed = dimCutoff != null && event.hasEnded(dimCutoff)
+    val soften = LocalSoftenColors.current
+    val fill = eventFill(event.color, dark, soften)
     Box(
         modifier = (if (dimmed) modifier.alpha(EventDimAlpha) else modifier)
-            .background(pastelize(event.color, dark), RoundedCornerShape(4.dp))
+            .background(fill, RoundedCornerShape(4.dp))
             .clickable(onClick = onClick)
             .padding(horizontal = 6.dp, vertical = 2.dp)
             .semantics { contentDescription = title },
@@ -597,7 +608,7 @@ private fun AllDayBar(
             style = MaterialTheme.typography.labelSmall,
             maxLines = 1,
             overflow = TextOverflow.Ellipsis,
-            color = Color.Black.copy(alpha = 0.8f),
+            color = eventInk(fill),
         )
     }
 }
@@ -621,10 +632,12 @@ private fun Timeline(
         // soft corners are permanent at any scroll position (not just at the
         // day's start/end).
         Row(modifier = Modifier.fillMaxSize()) {
-            // Hour gutter (scrolls in sync with the day columns)
+            // Hour gutter (scrolls in sync with the day columns). Same start inset
+            // as the header badge so the labels sit under it and on the hamburger.
             Column(
                 modifier = Modifier
                     .width(GUTTER_WIDTH)
+                    .padding(start = GUTTER_CONTENT_START_INSET)
                     .fillMaxHeight()
                     .verticalScroll(scrollState),
             ) {
@@ -774,9 +787,11 @@ private fun EventBlock(
     val titleMaxLines = (contentHeight / titleLineHeight).toInt().coerceAtLeast(1)
     val dimCutoff = LocalDimCutoff.current
     val dimmed = dimCutoff != null && block.event.hasEnded(dimCutoff)
+    val soften = LocalSoftenColors.current
+    val fill = eventFill(block.event.color, dark, soften)
     Box(
         modifier = (if (dimmed) modifier.alpha(EventDimAlpha) else modifier)
-            .background(pastelize(block.event.color, dark), RoundedCornerShape(4.dp))
+            .background(fill, RoundedCornerShape(4.dp))
             .clickable(onClick = onClick)
             .padding(horizontal = 4.dp, vertical = 2.dp)
             .semantics { contentDescription = "$title, $timeLabel" },
@@ -787,7 +802,7 @@ private fun EventBlock(
                 style = MaterialTheme.typography.labelMedium,
                 maxLines = titleMaxLines,
                 overflow = TextOverflow.Ellipsis,
-                color = Color.Black.copy(alpha = 0.85f),
+                color = eventInk(fill, alpha = 0.85f),
             )
             if (showTime) {
                 Text(
@@ -795,7 +810,7 @@ private fun EventBlock(
                     style = MaterialTheme.typography.labelSmall,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis,
-                    color = Color.Black.copy(alpha = 0.6f),
+                    color = eventInk(fill, alpha = 0.6f),
                 )
             }
         }
@@ -841,18 +856,29 @@ private fun WeekLoading() {
 private fun minToHm(min: Int, is24Hour: Boolean, locale: java.util.Locale): String =
     formatMinuteOfDay(min, is24Hour, locale)
 
-private fun formatWeekRange(weekStart: LocalDate): String {
-    val locale = Locale.getDefault()
-    val end = weekStart.plus(6, kotlinx.datetime.DateTimeUnit.DAY)
-    val monthName = { d: LocalDate ->
-        java.time.Month.of(d.month.ordinal + 1).getDisplayName(JavaTextStyle.SHORT, locale)
-    }
-    return if (weekStart.month == end.month && weekStart.year == end.year) {
-        "${weekStart.day}.–${end.day}. ${monthName(weekStart)} ${weekStart.year}"
-    } else if (weekStart.year == end.year) {
-        "${weekStart.day}. ${monthName(weekStart)} – ${end.day}. ${monthName(end)} ${end.year}"
-    } else {
-        "${weekStart.day}. ${monthName(weekStart)} ${weekStart.year} – " +
-            "${end.day}. ${monthName(end)} ${end.year}"
-    }
+/**
+ * The week's title: just the month [weekStart] falls in.
+ *
+ * The day numbers are already in the column headers directly below, so spelling
+ * out "13.–19. Jul" restates them in the widest string in the bar. Naming the
+ * month of [weekStart] means a week straddling a boundary keeps the outgoing
+ * month until it is fully gone — a week is seven contiguous days, so the earlier
+ * month has a day in it exactly while [weekStart] is still inside it. That also
+ * makes the *month* depend on nothing but [weekStart], so it cannot drift with
+ * the direction you paged in from.
+ *
+ * The *year* is decided from the whole week, not just its start: a week running
+ * Dec 28 – Jan 3 has four of its seven visible columns in the new year, so
+ * "December" with no year would be actively misleading while the reader is
+ * looking straight at January dates.
+ */
+private fun formatWeekTitle(weekStart: LocalDate, locale: Locale, currentYear: Int): String {
+    val weekEnd = weekStart.plus(6, kotlinx.datetime.DateTimeUnit.DAY)
+    return formatCalendarTitle(
+        date = java.time.LocalDate.of(weekStart.year, weekStart.month.ordinal + 1, 1),
+        locale = locale,
+        currentYear = currentYear,
+        skeleton = "LLLL",
+        forceYear = weekEnd.year != weekStart.year,
+    )
 }

app/src/main/java/de/jeanlucmakiola/calendula/widget/WidgetData.kt

@@ -60,12 +60,20 @@ sealed interface AgendaWidgetData {
         val days: List<AgendaDay>,
         /** Resolved clock convention for event time labels (the time-format pref). */
         val is24Hour: Boolean,
+        /** Whether event colours are softened to pastels, or shown raw (#36). */
+        val soften: Boolean,
         /** First day of the week, for the calendar-aligned "this week" range. */
         val weekStart: DayOfWeek,
         /** Saved range pref — the fallback when an instance has no Glance state yet. */
         val savedRange: AgendaRange,
         /** Saved past-event display pref — the fallback before Glance state is set. */
         val savedPastDisplay: PastEventDisplay,
+        /**
+         * Saved "always show today" pref (#35) — anchors today at the top with a
+         * placeholder even when it has no events left. The fallback read reactively
+         * from Glance state before an instance has its own state set.
+         */
+        val savedShowToday: Boolean,
         /** Snapshot instant the data was read at, for "has this event ended?" tests. */
         val now: Instant,
     ) : AgendaWidgetData
@@ -117,21 +125,26 @@ internal suspend fun Context.loadAgendaWidgetData(): AgendaWidgetData {
     val prefs = ep.settingsPrefs()
     val savedRange = prefs.agendaWidgetRange.first()
     val savedPastDisplay = prefs.pastEventDisplay.first()
+    val showToday = prefs.agendaShowToday.first()
     val weekStart = prefs.weekStart.first().resolveFirstDay(Locale.getDefault())
     // Load the widest selectable window once; the displayed range is sliced in
     // the composition from Glance state, so changing the range is a plain
     // recomposition and never depends on the widget session restarting.
     val window = agendaRange(anchor, AgendaRange.MAX_CUSTOM_DAYS - 1, zone)
+    val windowEnd = anchor.plus(AgendaRange.MAX_CUSTOM_DAYS - 1, DateTimeUnit.DAY)
     val instances = ep.calendarRepository().instances(window).first()
     val is24Hour = prefs.timeFormat.first()
         .is24Hour(android.text.format.DateFormat.is24HourFormat(this))
+    val soften = prefs.softenCalendarColors.first()
     return AgendaWidgetData.Ready(
         today = anchor,
-        days = groupAgendaDays(anchor, instances, zone),
+        days = groupAgendaDays(anchor, windowEnd, instances, zone),
         is24Hour = is24Hour,
+        soften = soften,
         weekStart = weekStart,
         savedRange = savedRange,
         savedPastDisplay = savedPastDisplay,
+        savedShowToday = showToday,
         now = Clock.System.now(),
     )
 }

app/src/main/java/de/jeanlucmakiola/calendula/widget/WidgetScale.kt

@@ -0,0 +1,70 @@
+package de.jeanlucmakiola.calendula.widget
+
+import androidx.compose.ui.unit.DpSize
+import androidx.compose.ui.unit.dp
+
+/**
+ * Size tiers a widget scales its typography and metrics across (#51).
+ *
+ * Shared by every Glance widget so the bucketing rule can't drift between them:
+ * each widget keeps its own metrics table, but they all agree on *when* a widget
+ * counts as compact, regular, large or extra-large. Both widgets already declare
+ * [androidx.glance.appwidget.SizeMode.Exact], so the composition sees the live
+ * size via `LocalSize.current` and passes it to [scaleFor].
+ *
+ * Kept in a pure, Glance-free file (only `compose.ui.unit`) so the bucketing is
+ * covered by plain JVM tests.
+ */
+internal enum class WidgetScale { COMPACT, REGULAR, LARGE, XLARGE }
+
+/**
+ * Chrome a widget spends before its first content row: outer vertical padding
+ * plus a header row and its spacer. Subtracted from the raw height so the height
+ * thresholds below talk about *usable* space rather than gross widget height.
+ */
+private val CHROME_HEIGHT = 60.dp
+
+/**
+ * Buckets a live widget size into a [WidgetScale] by **width**.
+ *
+ * Width is the right axis: it governs how much of a title fits on a row, so it's
+ * what should drive type size. Height only decides how many rows are visible — a
+ * tall, narrow widget wants *more events*, not bigger text — so it never raises
+ * the tier. It does act as a **cap**, though: a genuinely squashed widget is
+ * stepped back down so it can't keep oversized type in a sliver of space.
+ *
+ * The width thresholds are spread across the range a phone can actually produce
+ * (~180dp up to roughly the screen width) rather than over a theoretical range,
+ * so the tiers are reachable in practice. Calibrated on-device (Pixel / Nova): a
+ * compact 222dp-wide widget stays COMPACT (the app's baseline, unchanged) and a
+ * full-width 378dp one reaches LARGE. XLARGE is reserved for genuinely wide
+ * surfaces — tablets, foldables, landscape — where the extra size reads well.
+ *
+ * The height cap is deliberately generous: it exists to catch a widget squashed
+ * to one or two rows, **not** to gate ordinary placements. A full-width widget at
+ * the usual three cells tall (~270dp) must still reach the tier its width earned
+ * — that is exactly the resize #51 reports, and an aggressive cap would make the
+ * whole feature a no-op for it.
+ */
+internal fun scaleFor(size: DpSize): WidgetScale {
+    val byWidth = when {
+        size.width < 260.dp -> WidgetScale.COMPACT
+        size.width < 330.dp -> WidgetScale.REGULAR
+        size.width < 420.dp -> WidgetScale.LARGE
+        else -> WidgetScale.XLARGE
+    }
+    // Height can only ever pull the tier *down*, never push it up: a squashed
+    // widget would otherwise keep the big type its width earned and look absurd
+    // in the little space left. Keeping this a cap (rather than a second scaling
+    // axis) is what preserves "tall and narrow shows more events, not bigger
+    // text". Thresholds are usable height — roughly one, two and three rows of
+    // breathing room once the header is paid for.
+    val usable = size.height - CHROME_HEIGHT
+    val heightCap = when {
+        usable < 70.dp -> WidgetScale.COMPACT
+        usable < 130.dp -> WidgetScale.REGULAR
+        usable < 200.dp -> WidgetScale.LARGE
+        else -> WidgetScale.XLARGE
+    }
+    return minOf(byWidth, heightCap)
+}

app/src/main/java/de/jeanlucmakiola/calendula/widget/agenda/AgendaScale.kt

@@ -0,0 +1,150 @@
+package de.jeanlucmakiola.calendula.widget.agenda
+
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.TextUnit
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import de.jeanlucmakiola.calendula.widget.WidgetScale
+
+/**
+ * Horizontal layout constants for an agenda event row. These don't scale with the
+ * tier — a wider stripe or gap would eat title width, which is the thing the row
+ * is short of — but [TEXT_INDENT] is *derived* from them so the day header and
+ * the "nothing left today" line can never drift out of alignment with the event
+ * title column the way a hardcoded 19dp could.
+ */
+internal val ROW_H_PAD = 4.dp
+internal val STRIPE_WIDTH = 5.dp
+internal val STRIPE_GAP = 10.dp
+
+/** Left indent that lines non-event text up with the event title column. */
+internal val TEXT_INDENT = ROW_H_PAD + STRIPE_WIDTH + STRIPE_GAP
+
+/**
+ * The width band a *default* agenda placement can land in, per
+ * `app/src/main/res/xml/appwidget_info_agenda.xml` (`android:minWidth="180dp"`,
+ * `android:targetCellWidth="3"`). Measured at 222dp on a Pixel running Nova, but
+ * launcher cell grids vary, so the whole band — not one measured point — has to
+ * stay [WidgetScale.COMPACT] for the "default size is unchanged" promise of #51
+ * to hold. A test pins that.
+ *
+ * If the provider's `targetCellWidth` ever changes, this band and the first
+ * width threshold in [de.jeanlucmakiola.calendula.widget.scaleFor] must be
+ * revisited together.
+ */
+internal val AGENDA_DEFAULT_WIDTH_BAND = 180.dp..255.dp
+
+/**
+ * Every size the agenda widget varies by tier. Values that genuinely shouldn't
+ * grow (the horizontal row constants above, corner radii) stay constants rather
+ * than routing through here.
+ */
+internal data class AgendaMetrics(
+    val title: TextUnit,        // header "Upcoming"
+    val dayHeader: TextUnit,    // day label ("Today · …")
+    val eventTitle: TextUnit,   // event title line
+    val eventTime: TextUnit,    // time/location line
+    val placeholder: TextUnit,  // "no more events today" (#35)
+    val message: TextUnit,      // empty/permission centred message
+    val stripeH: Dp,            // coloured event stripe height
+    val iconImage: Dp,          // header action icon glyph
+    val iconBox: Dp,            // header action touch target
+    val rowVPad: Dp,            // event row vertical padding
+    val dayHeaderTopPad: Dp,    // space above a day header
+) {
+    /**
+     * Resolves the stripe height against the user's system font scale.
+     *
+     * The stripe is a [Dp] but the two text lines it sits beside are `sp`, so
+     * they scale with the accessibility font setting and the stripe does not —
+     * at "Largest" the text outgrows the stripe and it visibly under-runs the row
+     * it is supposed to mark. Multiplying by the same factor keeps them locked,
+     * and at the default scale of 1.0 reproduces the tier's value exactly.
+     */
+    fun scaledForFont(fontScale: Float): AgendaMetrics =
+        if (fontScale == 1f) this else copy(stripeH = stripeH * fontScale)
+}
+
+/*
+ * Type sizes are anchored to the Material 3 type scale (see the `material-3`
+ * skill's typography reference) rather than invented: 16sp is Title Medium, 14sp
+ * Body Medium / Title Small, 12sp Body Small, 16sp Body Large, 22sp Title Large.
+ *
+ * Two documented deviations:
+ *
+ *  ‡ COMPACT's 13sp day header is off-scale. It is held there deliberately —
+ *    COMPACT reproduces the widget's original constants verbatim so a
+ *    default-sized widget looks exactly as it did (#51), and snapping it to
+ *    Title Small (14sp) would break that promise for a 1sp gain.
+ *
+ *  † Above Title Medium the M3 scale jumps 16 → 22 → 24 with nothing in between,
+ *    which is far too coarse for four widget tiers. Where a role would force a
+ *    ≥1.4x step between adjacent tiers we hold an interpolated value instead and
+ *    mark it. The endpoints stay on real roles.
+ */
+
+private val COMPACT_METRICS = AgendaMetrics(
+    title = 16.sp,       // M3 Title Medium
+    dayHeader = 13.sp,   // ‡ off-scale, holds the #51 baseline
+    eventTitle = 14.sp,  // M3 Body Medium
+    eventTime = 12.sp,   // M3 Body Small
+    placeholder = 14.sp, // M3 Body Medium
+    message = 14.sp,     // M3 Body Medium
+    stripeH = 36.dp,
+    iconImage = 22.dp,
+    iconBox = 40.dp,
+    rowVPad = 4.dp,
+    dayHeaderTopPad = 10.dp,
+)
+
+private val REGULAR_METRICS = AgendaMetrics(
+    title = 18.sp,       // †
+    dayHeader = 14.sp,   // M3 Title Small
+    eventTitle = 16.sp,  // M3 Body Large
+    eventTime = 14.sp,   // M3 Body Medium
+    placeholder = 16.sp, // M3 Body Large
+    message = 16.sp,     // M3 Body Large
+    stripeH = 40.dp,
+    iconImage = 24.dp,
+    iconBox = 44.dp,
+    rowVPad = 5.dp,
+    dayHeaderTopPad = 11.dp,
+)
+
+private val LARGE_METRICS = AgendaMetrics(
+    title = 20.sp,       // †
+    dayHeader = 16.sp,   // M3 Title Medium
+    eventTitle = 18.sp,  // †
+    eventTime = 14.sp,   // M3 Body Medium — the secondary line steps more slowly
+    placeholder = 18.sp, // †                on purpose, so the title keeps its
+    message = 18.sp,     // †                lead and the hierarchy survives.
+    stripeH = 46.dp,
+    iconImage = 26.dp,
+    iconBox = 48.dp,
+    rowVPad = 6.dp,
+    dayHeaderTopPad = 12.dp,
+)
+
+private val XLARGE_METRICS = AgendaMetrics(
+    title = 22.sp,       // M3 Title Large
+    dayHeader = 18.sp,   // †
+    eventTitle = 20.sp,  // †
+    eventTime = 16.sp,   // M3 Body Large
+    placeholder = 20.sp, // †
+    message = 20.sp,     // †
+    stripeH = 52.dp,
+    iconImage = 28.dp,
+    iconBox = 52.dp,
+    rowVPad = 8.dp,
+    dayHeaderTopPad = 14.dp,
+)
+
+/** Indexed by [WidgetScale.ordinal] so lookup allocates nothing per recomposition. */
+private val AGENDA_METRICS = listOf(
+    COMPACT_METRICS,
+    REGULAR_METRICS,
+    LARGE_METRICS,
+    XLARGE_METRICS,
+)
+
+internal fun metricsFor(scale: WidgetScale): AgendaMetrics = AGENDA_METRICS[scale.ordinal]

app/src/main/java/de/jeanlucmakiola/calendula/widget/agenda/AgendaWidget.kt

@@ -5,7 +5,7 @@ import android.content.res.Configuration
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
+import androidx.datastore.preferences.core.booleanPreferencesKey
 import androidx.datastore.preferences.core.stringPreferencesKey
 import androidx.glance.ColorFilter
 import androidx.glance.GlanceId
@@ -13,9 +13,11 @@ import androidx.glance.GlanceModifier
 import androidx.glance.GlanceTheme
 import androidx.glance.Image
 import androidx.glance.ImageProvider
+import androidx.glance.LocalSize
 import androidx.glance.action.ActionParameters
 import androidx.glance.action.clickable
 import androidx.glance.appwidget.GlanceAppWidget
+import androidx.glance.appwidget.SizeMode
 import androidx.glance.appwidget.action.ActionCallback
 import androidx.glance.appwidget.action.actionRunCallback
 import androidx.glance.appwidget.action.actionStartActivity
@@ -48,14 +50,19 @@ import de.jeanlucmakiola.calendula.data.prefs.parsePastEventDisplay
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.hasEnded
 import de.jeanlucmakiola.calendula.ui.agenda.AgendaRange
+import de.jeanlucmakiola.calendula.ui.agenda.AgendaTimeLabel
+import de.jeanlucmakiola.calendula.ui.agenda.agendaTimeLabel
+import de.jeanlucmakiola.calendula.ui.agenda.anchorTodayIfMissing
 import de.jeanlucmakiola.calendula.ui.agenda.dayCount
 import de.jeanlucmakiola.calendula.ui.agenda.parseAgendaRange
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.EventDimAlpha
 import de.jeanlucmakiola.calendula.ui.common.formatTimeOfDay
-import de.jeanlucmakiola.floret.components.pastelize
+import de.jeanlucmakiola.floret.locale.localizedDateFormatter
+import de.jeanlucmakiola.calendula.ui.common.eventFill
 import de.jeanlucmakiola.calendula.widget.AgendaWidgetData
 import de.jeanlucmakiola.calendula.widget.CalendulaGlanceTheme
+import de.jeanlucmakiola.calendula.widget.scaleFor
 import de.jeanlucmakiola.calendula.widget.loadAgendaWidgetData
 import de.jeanlucmakiola.calendula.widget.systemZone
 import de.jeanlucmakiola.calendula.widget.today
@@ -65,7 +72,6 @@ import kotlinx.datetime.TimeZone
 import kotlinx.datetime.plus
 import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Instant
-import java.time.format.TextStyle as JavaTextStyle
 import java.util.Locale
 
 /**
@@ -91,10 +97,31 @@ internal val AGENDA_RANGE_KEY = stringPreferencesKey("agenda_range")
  */
 internal val AGENDA_PAST_DISPLAY_KEY = stringPreferencesKey("agenda_past_display")
 
+/**
+ * Per-instance Glance state key holding the "always show today" toggle (#35).
+ * Read reactively in the composition for the same reason as [AGENDA_RANGE_KEY] —
+ * so toggling the setting reflects on the live widget without depending on the
+ * `provideGlance` preamble re-running.
+ */
+internal val AGENDA_SHOW_TODAY_STATE_KEY = booleanPreferencesKey("agenda_show_today")
+
 class AgendaWidget : GlanceAppWidget() {
 
     override val stateDefinition = PreferencesGlanceStateDefinition
 
+    // Exact so the composition sees the widget's live size and can scale type/rows
+    // from it ([scaleFor]/[metricsFor]); at the default size that resolves to
+    // COMPACT, i.e. the layout is unchanged (#51). MonthWidget already does the
+    // same.
+    //
+    // Note Exact still asks Glance for one RemoteViews per host size (typically
+    // portrait + landscape) where the old SizeMode.Single produced exactly one —
+    // so the serialized payload roughly doubles. That is why the row list below is
+    // capped: an uncapped agenda (the range goes up to AgendaRange.MAX_CUSTOM_DAYS
+    // = 365) could otherwise push the RemoteViews past the binder transaction
+    // limit and the host would just show "Problem loading widget".
+    override val sizeMode = SizeMode.Exact
+
     override suspend fun provideGlance(context: Context, id: GlanceId) {
         val data = context.loadAgendaWidgetData()
         val dark = (context.resources.configuration.uiMode and
@@ -114,24 +141,41 @@ class RefreshAgendaAction : ActionCallback {
     }
 }
 
+/**
+ * Upper bound on rows handed to the [LazyColumn], so the serialized RemoteViews
+ * stays well inside the binder transaction limit regardless of range and calendar
+ * size (see the [SizeMode.Exact] note above). Far more than fits on screen — a
+ * user scrolling a home-screen widget past a hundred rows is not a case worth
+ * risking a failed update for.
+ */
+private const val MAX_AGENDA_ROWS = 100
+
 /** Flat row model so the [LazyColumn] can mix day headers and events. */
 private sealed interface AgendaRow {
     data class Header(val date: LocalDate, val today: LocalDate) : AgendaRow
-    data class Event(val event: EventInstance) : AgendaRow
+    data class Event(val date: LocalDate, val event: EventInstance) : AgendaRow
+    /** "Nothing left today" line under an anchored, event-less today (#35). */
+    data class Placeholder(val date: LocalDate) : AgendaRow
 }
 
 @Composable
 private fun AgendaWidgetBody(data: AgendaWidgetData, dark: Boolean) {
+    // Type and row metrics scale with the widget's live size (SizeMode.Exact); a
+    // short/compact widget resolves to COMPACT, leaving the layout unchanged (#51).
+    // The stripe is then re-resolved against the system font scale so it tracks the
+    // sp-sized text beside it instead of drifting at large accessibility settings.
+    val fontScale = androidx.glance.LocalContext.current.resources.configuration.fontScale
+    val metrics = metricsFor(scaleFor(LocalSize.current)).scaledForFont(fontScale)
     Column(
         modifier = GlanceModifier
             .fillMaxSize()
             .background(GlanceTheme.colors.surface)
             .padding(horizontal = 8.dp, vertical = 6.dp),
     ) {
-        AgendaHeader()
+        AgendaHeader(metrics)
         Spacer(GlanceModifier.height(4.dp))
         when (data) {
-            AgendaWidgetData.NeedsPermission -> WidgetMessage(R.string.widget_needs_permission)
+            AgendaWidgetData.NeedsPermission -> WidgetMessage(R.string.widget_needs_permission, metrics)
             is AgendaWidgetData.Ready -> {
                 // Range read reactively from per-instance Glance state (falls back
                 // to the saved pref for a freshly placed widget), then the wide
@@ -139,43 +183,62 @@ private fun AgendaWidgetBody(data: AgendaWidgetData, dark: Boolean) {
                 val range = parseAgendaRange(currentState(AGENDA_RANGE_KEY), data.savedRange)
                 val pastDisplay =
                     parsePastEventDisplay(currentState(AGENDA_PAST_DISPLAY_KEY), data.savedPastDisplay)
+                val showToday = currentState(AGENDA_SHOW_TODAY_STATE_KEY) ?: data.savedShowToday
                 val rangeEnd = data.today.plus(
                     range.dayCount(data.today, data.weekStart) - 1,
                     DateTimeUnit.DAY,
                 )
                 // Slice to the chosen range, then drop finished events (and any day
                 // they leave empty) when the mode is Hide — so "Upcoming" really is.
-                val visibleDays = data.days
-                    .filter { it.date <= rangeEnd }
-                    .let { days ->
-                        if (pastDisplay == PastEventDisplay.HIDE) {
-                            days.mapNotNull { day ->
-                                val remaining = day.events.filterNot { it.hasEnded(data.now) }
-                                if (remaining.isEmpty()) null else day.copy(events = remaining)
+                // Finally re-anchor today (as an empty placeholder day) when the
+                // "always show today" pref is on and today has no events left (#35).
+                val visibleDays = anchorTodayIfMissing(
+                    days = data.days
+                        .filter { it.date <= rangeEnd }
+                        .let { days ->
+                            if (pastDisplay == PastEventDisplay.HIDE) {
+                                days.mapNotNull { day ->
+                                    val remaining = day.events.filterNot { it.hasEnded(data.now) }
+                                    if (remaining.isEmpty()) null else day.copy(events = remaining)
+                                }
+                            } else {
+                                days
                             }
-                        } else {
-                            days
-                        }
-                    }
+                        },
+                    today = data.today,
+                    enabled = showToday,
+                )
                 if (visibleDays.isEmpty()) {
-                    WidgetMessage(R.string.agenda_empty_title)
+                    WidgetMessage(R.string.agenda_empty_title, metrics)
                 } else {
                     val rows = buildList {
                         visibleDays.forEach { day ->
                             add(AgendaRow.Header(day.date, data.today))
-                            day.events.forEach { add(AgendaRow.Event(it)) }
+                            if (day.events.isEmpty()) {
+                                add(AgendaRow.Placeholder(day.date))
+                            } else {
+                                day.events.forEach { add(AgendaRow.Event(day.date, it)) }
+                            }
                         }
                     }
+                        // Bound the payload, then drop a day header the cut left
+                        // stranded with nothing under it.
+                        .take(MAX_AGENDA_ROWS)
+                        .dropLastWhile { it is AgendaRow.Header }
                     LazyColumn(modifier = GlanceModifier.fillMaxSize()) {
                         items(rows.size) { index ->
                             when (val row = rows[index]) {
-                                is AgendaRow.Header -> DayHeaderRow(row.date, row.today)
+                                is AgendaRow.Header -> DayHeaderRow(row.date, row.today, metrics)
+                                is AgendaRow.Placeholder -> PlaceholderRow(row.date, metrics)
                                 is AgendaRow.Event -> EventRow(
                                     event = row.event,
+                                    day = row.date,
                                     dark = dark,
+                                    soften = data.soften,
                                     is24Hour = data.is24Hour,
                                     dimmed = pastDisplay == PastEventDisplay.DIM &&
                                         row.event.hasEnded(data.now),
+                                    metrics = metrics,
                                 )
                             }
                         }
@@ -187,7 +250,7 @@ private fun AgendaWidgetBody(data: AgendaWidgetData, dark: Boolean) {
 }
 
 @Composable
-private fun AgendaHeader() {
+private fun AgendaHeader(metrics: AgendaMetrics) {
     val context = androidx.glance.LocalContext.current
     Row(
         modifier = GlanceModifier.fillMaxWidth().padding(horizontal = 4.dp),
@@ -199,7 +262,7 @@ private fun AgendaHeader() {
             text = context.getString(R.string.widget_agenda_title),
             style = TextStyle(
                 color = GlanceTheme.colors.primary,
-                fontSize = 16.sp,
+                fontSize = metrics.title,
                 fontWeight = FontWeight.Medium,
             ),
             modifier = GlanceModifier
@@ -212,6 +275,7 @@ private fun AgendaHeader() {
             resId = R.drawable.ic_widget_refresh,
             contentDescription = context.getString(R.string.widget_refresh),
             onClick = GlanceModifier.clickable(actionRunCallback<RefreshAgendaAction>()),
+            metrics = metrics,
         )
         IconButton(
             resId = R.drawable.ic_widget_add,
@@ -221,39 +285,77 @@ private fun AgendaHeader() {
                     MainActivity.openCreateIntent(context, today(systemZone())),
                 ),
             ),
+            metrics = metrics,
         )
     }
 }
 
 @Composable
-private fun IconButton(resId: Int, contentDescription: String, onClick: GlanceModifier) {
+private fun IconButton(
+    resId: Int,
+    contentDescription: String,
+    onClick: GlanceModifier,
+    metrics: AgendaMetrics,
+) {
     Box(
-        modifier = GlanceModifier.size(40.dp).then(onClick),
+        modifier = GlanceModifier.size(metrics.iconBox).then(onClick),
         contentAlignment = Alignment.Center,
     ) {
         Image(
             provider = ImageProvider(resId),
             contentDescription = contentDescription,
             colorFilter = ColorFilter.tint(GlanceTheme.colors.onSurfaceVariant),
-            modifier = GlanceModifier.size(22.dp),
+            modifier = GlanceModifier.size(metrics.iconImage),
         )
     }
 }
 
 @Composable
-private fun DayHeaderRow(date: LocalDate, today: LocalDate) {
+private fun DayHeaderRow(date: LocalDate, today: LocalDate, metrics: AgendaMetrics) {
     val context = androidx.glance.LocalContext.current
     Text(
         text = agendaDayLabel(context, date, today),
         style = TextStyle(
             color = if (date == today) GlanceTheme.colors.primary
             else GlanceTheme.colors.onSurfaceVariant,
-            fontSize = 13.sp,
+            fontSize = metrics.dayHeader,
             fontWeight = FontWeight.Medium,
         ),
         modifier = GlanceModifier
             .fillMaxWidth()
-            .padding(start = 8.dp, end = 8.dp, top = 10.dp, bottom = 4.dp)
+            .padding(
+                start = 8.dp,
+                end = 8.dp,
+                top = metrics.dayHeaderTopPad,
+                bottom = metrics.rowVPad,
+            )
+            .clickable(
+                actionStartActivity(
+                    MainActivity.openDateIntent(context, date, CalendarView.Agenda),
+                ),
+            ),
+    )
+}
+
+/**
+ * "No more events today" under an anchored, event-less today (#35). Kept plain —
+ * a muted line indented to the event titles — since the widget's event rows are
+ * plain too (a stripe + text, not cards), so a card here would look out of place.
+ */
+@Composable
+private fun PlaceholderRow(date: LocalDate, metrics: AgendaMetrics) {
+    val context = androidx.glance.LocalContext.current
+    Text(
+        text = context.getString(R.string.agenda_no_more_today),
+        style = TextStyle(color = GlanceTheme.colors.onSurfaceVariant, fontSize = metrics.placeholder),
+        modifier = GlanceModifier
+            .fillMaxWidth()
+            .padding(
+                start = TEXT_INDENT,
+                end = 8.dp,
+                top = 2.dp,
+                bottom = metrics.rowVPad + 2.dp,
+            )
             .clickable(
                 actionStartActivity(
                     MainActivity.openDateIntent(context, date, CalendarView.Agenda),
@@ -263,19 +365,27 @@ private fun DayHeaderRow(date: LocalDate, today: LocalDate) {
 }
 
 @Composable
-private fun EventRow(event: EventInstance, dark: Boolean, is24Hour: Boolean, dimmed: Boolean) {
+private fun EventRow(
+    event: EventInstance,
+    day: LocalDate,
+    dark: Boolean,
+    soften: Boolean,
+    is24Hour: Boolean,
+    dimmed: Boolean,
+    metrics: AgendaMetrics,
+) {
     val context = androidx.glance.LocalContext.current
     val title = event.title.ifBlank { context.getString(R.string.event_untitled) }
     // Glance has no generic alpha modifier, so dim by fading the colour stripe and
     // dropping both text lines to the lower-emphasis on-surface-variant tone.
-    val stripeColor = pastelize(event.color, dark).let {
+    val stripeColor = eventFill(event.color, dark, soften).let {
         if (dimmed) it.copy(alpha = EventDimAlpha) else it
     }
     val titleColor = if (dimmed) GlanceTheme.colors.onSurfaceVariant else GlanceTheme.colors.onSurface
     Row(
         modifier = GlanceModifier
             .fillMaxWidth()
-            .padding(horizontal = 4.dp, vertical = 4.dp)
+            .padding(horizontal = ROW_H_PAD, vertical = metrics.rowVPad)
             .clickable(
                 actionStartActivity(
                     MainActivity.openEventIntent(
@@ -291,29 +401,29 @@ private fun EventRow(event: EventInstance, dark: Boolean, is24Hour: Boolean, dim
     ) {
         Box(
             modifier = GlanceModifier
-                .width(5.dp)
-                .height(36.dp)
+                .width(STRIPE_WIDTH)
+                .height(metrics.stripeH)
                 .cornerRadius(3.dp)
                 .background(stripeColor),
         ) {}
-        Spacer(GlanceModifier.width(10.dp))
+        Spacer(GlanceModifier.width(STRIPE_GAP))
         Column(modifier = GlanceModifier.defaultWeight()) {
             Text(
                 text = title,
                 maxLines = 1,
-                style = TextStyle(color = titleColor, fontSize = 14.sp),
+                style = TextStyle(color = titleColor, fontSize = metrics.eventTitle),
             )
             Text(
-                text = eventTimeSummary(context, event, is24Hour),
+                text = eventTimeSummary(context, event, day, is24Hour),
                 maxLines = 1,
-                style = TextStyle(color = GlanceTheme.colors.onSurfaceVariant, fontSize = 12.sp),
+                style = TextStyle(color = GlanceTheme.colors.onSurfaceVariant, fontSize = metrics.eventTime),
             )
         }
     }
 }
 
 @Composable
-private fun WidgetMessage(resId: Int) {
+private fun WidgetMessage(resId: Int, metrics: AgendaMetrics) {
     val context = androidx.glance.LocalContext.current
     Box(
         modifier = GlanceModifier.fillMaxSize().padding(16.dp),
@@ -321,7 +431,7 @@ private fun WidgetMessage(resId: Int) {
     ) {
         Text(
             text = context.getString(resId),
-            style = TextStyle(color = GlanceTheme.colors.onSurfaceVariant, fontSize = 14.sp),
+            style = TextStyle(color = GlanceTheme.colors.onSurfaceVariant, fontSize = metrics.message),
         )
     }
 }
@@ -337,17 +447,26 @@ private fun agendaDayLabel(context: Context, date: LocalDate, today: LocalDate):
     }
     val locale = Locale.getDefault()
     val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
-    val weekday = java.dayOfWeek.getDisplayName(JavaTextStyle.SHORT, locale)
-    val monthName = java.month.getDisplayName(JavaTextStyle.SHORT, locale)
-    val formatted = "$weekday, ${date.day} $monthName"
+    // Weekday + date in the locale's own field order (compact: no year), rather
+    // than a hardcoded day-month layout.
+    val formatted = localizedDateFormatter(locale, "EEEdMMM").format(java)
     return if (relative != null) "$relative · $formatted" else formatted
 }
 
-private fun eventTimeSummary(context: Context, event: EventInstance, is24Hour: Boolean): String {
-    val time = if (event.isAllDay) {
-        context.getString(R.string.event_detail_all_day)
-    } else {
-        "${formatTime(event.start, is24Hour)} – ${formatTime(event.end, is24Hour)}"
+private fun eventTimeSummary(
+    context: Context,
+    event: EventInstance,
+    day: LocalDate,
+    is24Hour: Boolean,
+): String {
+    val time = when (val label = agendaTimeLabel(event, day, zone())) {
+        AgendaTimeLabel.AllDay -> context.getString(R.string.event_detail_all_day)
+        is AgendaTimeLabel.Starts ->
+            context.getString(R.string.agenda_span_starts, formatTime(label.start, is24Hour))
+        is AgendaTimeLabel.Ends ->
+            context.getString(R.string.agenda_span_ends, formatTime(label.end, is24Hour))
+        is AgendaTimeLabel.Range ->
+            "${formatTime(label.start, is24Hour)} – ${formatTime(label.end, is24Hour)}"
     }
     val location = event.location?.takeIf { it.isNotBlank() }
     return if (location != null) "$time · $location" else time

app/src/main/java/de/jeanlucmakiola/calendula/widget/month/MonthWidget.kt

@@ -3,7 +3,6 @@ package de.jeanlucmakiola.calendula.widget.month
 import android.content.Context
 import android.content.res.Configuration
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.datastore.preferences.core.intPreferencesKey
@@ -50,14 +49,18 @@ import de.jeanlucmakiola.calendula.MainActivity
 import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
-import de.jeanlucmakiola.floret.components.pastelize
+import de.jeanlucmakiola.calendula.ui.common.formatCalendarTitle
 import de.jeanlucmakiola.calendula.ui.month.MonthWeek
 import de.jeanlucmakiola.calendula.ui.month.layoutMonthWeeks
+import de.jeanlucmakiola.calendula.ui.common.eventFill
+import de.jeanlucmakiola.calendula.ui.common.eventInk
 import de.jeanlucmakiola.calendula.widget.CalendulaGlanceTheme
 import de.jeanlucmakiola.calendula.widget.MonthWidgetSource
 import de.jeanlucmakiola.calendula.widget.loadMonthWidgetSource
 import de.jeanlucmakiola.calendula.widget.systemZone
 import de.jeanlucmakiola.calendula.widget.today
+import de.jeanlucmakiola.calendula.widget.widgetEntryPoint
+import kotlinx.coroutines.flow.first
 import androidx.compose.ui.unit.Dp
 import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
@@ -76,9 +79,6 @@ private val LANE_HEIGHT = 14.dp
 private val DAY_NUMBER_HEIGHT = 18.dp
 private val GRID_HPADDING = 8.dp
 
-/** Dark ink that reads on the pastelized event fills, like the in-app MonthBar. */
-private val EventInk = ColorProvider(Color(0xDE000000))
-
 private fun currentMonthIndex(zone: TimeZone): Int {
     val t = today(zone)
     return t.year * 12 + t.month.ordinal
@@ -107,9 +107,12 @@ class MonthWidget : GlanceAppWidget() {
         val source = context.loadMonthWidgetSource()
         val dark = (context.resources.configuration.uiMode and
             Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES
+        // Read fresh (not through the cached source) so toggling the softener
+        // redraws with the new choice; it's one cheap DataStore read.
+        val soften = context.widgetEntryPoint().settingsPrefs().softenCalendarColors.first()
         provideContent {
             CalendulaGlanceTheme {
-                MonthWidgetBody(source = source, dark = dark)
+                MonthWidgetBody(source = source, dark = dark, soften = soften)
             }
         }
     }
@@ -140,7 +143,7 @@ class ResetMonthAction : ActionCallback {
 }
 
 @Composable
-private fun MonthWidgetBody(source: MonthWidgetSource, dark: Boolean) {
+private fun MonthWidgetBody(source: MonthWidgetSource, dark: Boolean, soften: Boolean) {
     Column(
         modifier = GlanceModifier
             .fillMaxSize()
@@ -160,7 +163,7 @@ private fun MonthWidgetBody(source: MonthWidgetSource, dark: Boolean) {
                 val colW = (LocalSize.current.width - GRID_HPADDING * 2) / 7
                 val weeks = layoutMonthWeeks(ym, source.weekStart, source.instances, zone)
 
-                MonthHeader(label = monthLabel(ym))
+                MonthHeader(label = monthLabel(ym, source.today.year))
                 Spacer(GlanceModifier.height(2.dp))
                 WeekdayHeader(weekStart = source.weekStart, colW = colW)
                 weeks.forEach { week ->
@@ -169,6 +172,7 @@ private fun MonthWidgetBody(source: MonthWidgetSource, dark: Boolean) {
                         currentMonth = ym.month,
                         today = source.today,
                         dark = dark,
+                        soften = soften,
                         colW = colW,
                         modifier = GlanceModifier.defaultWeight(),
                     )
@@ -278,6 +282,7 @@ private fun WeekRow(
     currentMonth: Month,
     today: LocalDate,
     dark: Boolean,
+    soften: Boolean,
     colW: Dp,
     modifier: GlanceModifier,
 ) {
@@ -297,7 +302,7 @@ private fun WeekRow(
         // One lane row per event row. A multi-day span is a single Box spanning
         // its columns (colW * n) so it's connected with no seam and rounded ends.
         repeat(MAX_LANES) { lane ->
-            LaneRow(week = week, lane = lane, dark = dark, colW = colW)
+            LaneRow(week = week, lane = lane, dark = dark, soften = soften, colW = colW)
             Spacer(GlanceModifier.height(1.dp))
         }
         OverflowRow(week = week, colW = colW)
@@ -346,7 +351,7 @@ private fun DayNumber(date: LocalDate, isToday: Boolean, inMonth: Boolean, colW:
 }
 
 @Composable
-private fun LaneRow(week: MonthWeek, lane: Int, dark: Boolean, colW: Dp) {
+private fun LaneRow(week: MonthWeek, lane: Int, dark: Boolean, soften: Boolean, colW: Dp) {
     val context = LocalContext.current
     Row(modifier = GlanceModifier.fillMaxWidth()) {
         var col = 0
@@ -354,12 +359,12 @@ private fun LaneRow(week: MonthWeek, lane: Int, dark: Boolean, colW: Dp) {
             val span = week.spans.firstOrNull { it.lane == lane && col in it.startCol..it.endCol }
             if (span != null) {
                 val cols = span.endCol - col + 1
-                SpanBar(event = span.event, dark = dark, width = colW * cols)
+                SpanBar(event = span.event, dark = dark, soften = soften, width = colW * cols)
                 col = span.endCol + 1
             } else {
                 val timed = timedEventAt(week, lane, col, week.days[col])
                 if (timed != null) {
-                    SpanBar(event = timed, dark = dark, width = colW)
+                    SpanBar(event = timed, dark = dark, soften = soften, width = colW)
                 } else {
                     // Empty lane cell: a tap opens that day, so blank space in a
                     // day column is a day-open target just like the number is.
@@ -378,8 +383,9 @@ private fun LaneRow(week: MonthWeek, lane: Int, dark: Boolean, colW: Dp) {
 
 /** A single connected, rounded event bar [width] wide with its clipped title. */
 @Composable
-private fun SpanBar(event: EventInstance, dark: Boolean, width: Dp) {
+private fun SpanBar(event: EventInstance, dark: Boolean, soften: Boolean, width: Dp) {
     val context = LocalContext.current
+    val fill = eventFill(event.color, dark, soften)
     Box(
         modifier = GlanceModifier
             .width(width)
@@ -402,13 +408,13 @@ private fun SpanBar(event: EventInstance, dark: Boolean, width: Dp) {
             modifier = GlanceModifier
                 .fillMaxSize()
                 .cornerRadius(4.dp)
-                .background(pastelize(event.color, dark)),
+                .background(fill),
             contentAlignment = Alignment.CenterStart,
         ) {
             Text(
                 text = event.title.ifBlank { context.getString(R.string.event_untitled) },
                 maxLines = 1,
-                style = TextStyle(color = EventInk, fontSize = 9.sp),
+                style = TextStyle(color = ColorProvider(eventInk(fill)), fontSize = 9.sp),
                 modifier = GlanceModifier.padding(horizontal = 3.dp),
             )
         }
@@ -475,9 +481,13 @@ private fun PermissionMessage() {
     }
 }
 
-private fun monthLabel(month: YearMonth): String {
-    val locale = Locale.getDefault()
-    val name = java.time.Month.of(month.month.ordinal + 1)
-        .getDisplayName(JavaTextStyle.FULL, locale)
-    return "$name ${month.year}"
-}
+// Locale.getDefault() rather than currentLocale(): Glance has no
+// LocalConfiguration, and the widget is re-rendered on a configuration change
+// anyway (same convention as AgendaWidget).
+private fun monthLabel(month: YearMonth, currentYear: Int): String =
+    formatCalendarTitle(
+        date = java.time.LocalDate.of(month.year, month.month.ordinal + 1, 1),
+        locale = Locale.getDefault(),
+        currentYear = currentYear,
+        skeleton = "LLLL",
+    )

app/src/main/res/values-de/strings.xml

@@ -310,7 +310,7 @@
     <string name="settings_language">App-Sprache</string>
     <string name="settings_language_auto">Systemstandard</string>
     <!-- Hub category subtitles -->
-    <string name="settings_appearance_subtitle">Design, Standartansicht, Wochenstart</string>
+    <string name="settings_appearance_subtitle">Design, Standardansicht, Wochenstart</string>
     <string name="settings_event_form_subtitle">Standardfelder für neue Termine</string>
     <string name="settings_notifications_subtitle">Termin-Erinnerungen</string>
     <string name="settings_section_about">Über</string>
@@ -474,4 +474,20 @@
     <string name="special_dates_default_title_birthday">Geburtstag von {name} ({year})</string>
     <string name="special_dates_default_title_anniversary">Jahrestag von {name} ({year})</string>
     <string name="special_dates_default_title_custom">{name}</string>
+    <string name="settings_week_numbers">Kalenderwochen</string>
+    <string name="settings_week_numbers_summary">Kalenderwochen der Monatsansicht anzeigen</string>
+    <string name="calendars_export_title">Kalender exportieren</string>
+    <string name="calendars_export_hint">Wähle aus, welche Kalender in die .ics-Datei aufgenommen werden sollen.</string>
+    <string name="calendars_export_action">Exportieren</string>
+    <string name="calendars_restore_header">Wiederherstellen</string>
+    <string name="calendars_restore_action">Aus .ics-Datei wiederherstellen</string>
+    <string name="calendars_restore_hint">Importiere Ereignisse aus einem Backup oder einer anderen Kalender-App.</string>
+    <string name="import_done_dedup_note">Bereits im Kalender vorhandene Ereignisse wurden übersprungen.</string>
+    <string name="import_done_added_label">Hinzugefügt</string>
+    <string name="import_done_skipped_label">Duplikate</string>
+    <string name="import_button">Importieren</string>
+    <plurals name="import_title_count">
+        <item quantity="one">%d Ereignis wird importiert</item>
+        <item quantity="other">%d Ereignisse werden importiert</item>
+    </plurals>
 </resources>

app/src/main/res/values-es/strings.xml

@@ -403,15 +403,15 @@
     <string name="shortcut_new_event_long">Crear un nuevo evento</string>
     <string name="settings_qs_tile">Añadir mosaico de ajustes rápidos</string>
     <string name="settings_qs_tile_hint">Añadir un recuadro de \"nuevo evento\" al panel de ajustes rápidos.</string>
-    <string name="crash_dialog_title">Calendula ha fallado</string>
-    <string name="crash_dialog_message">Calendula se cerro de forma inesperada la ultima vez. Puedes ayudar a solucionarlo enviando un reporte del problema. Este permanece en tu dispositivo hasta que decidas enviarlo, y no contiene información personal o contenido de tu calendario — solo los detalles técnicos de mas abajo.</string>
+    <string name="crash_dialog_title">%1$s ha fallado</string>
+    <string name="crash_dialog_message">%1$s se cerro de forma inesperada la ultima vez. Puedes ayudar a solucionarlo enviando un reporte del problema. Este permanece en tu dispositivo hasta que decidas enviarlo, y no contiene información personal o contenido de tu calendario — solo los detalles técnicos de mas abajo.</string>
     <string name="crash_dialog_report">Reportar</string>
     <string name="crash_dialog_dismiss">No por ahora</string>
     <string name="crash_report_issue_title">Reporte de error</string>
-    <string name="crash_report_clip_label">Reporte de error de Calendula</string>
+    <string name="crash_report_clip_label">Reporte de error de %1$s</string>
     <string name="crash_report_copied">Reporte copiado a tu porta papeles</string>
     <string name="crash_report_open_failed">No se pudo abrir el sistema de seguimiento de errores. El reporte es en tu portapapeles.</string>
-    <string name="crash_report_body_template">Gracias por reportar un error en Calendula. Por favor añade todo lo que recuerdas sobre lo que estabas haciendo y luego publicalo.\n\n### que sucedió\n\n\n### reporte de error\n%1$s\n</string>
+    <string name="crash_report_body_template">Gracias por reportar un error en %1$s. Por favor añade todo lo que recuerdas sobre lo que estabas haciendo y luego publicalo.\n\n### que sucedió\n\n\n### reporte de error\n%2$s\n</string>
     <string name="crash_report_body_paste">_(el reporte es demasiado largo para este link — pegalo aquí desde su portapeles.)_</string>
     <string name="event_attendee_resource">Recurso</string>
     <string name="settings_section_about">Acerca de</string>
@@ -466,4 +466,31 @@
     <string name="settings_special_dates_grant">Permitir acceso</string>
     <string name="dialog_save">Guardar</string>
     <string name="settings_font_system">Igual que el sistema</string>
+    <string name="import_reminder_prompt_title">¿Aplicar tus recordatorios por defecto?</string>
+    <string name="import_reminder_prompt_body_none">Este evento fue importado sin ningún recordatorio.</string>
+    <plurals name="import_reminder_prompt_body_existing">
+        <item quantity="one">Este evento fue importado con %1$d recordatorio.</item>
+        <item quantity="many">Este evento fue portado con %1$d recordatorios.</item>
+        <item quantity="other">Este evento fue importado con %1$d recordatorios.</item>
+    </plurals>
+    <string name="import_reminder_prompt_apply">Aplicar por defecto</string>
+    <string name="import_reminder_prompt_keep">Mantener como esta</string>
+    <string name="back">Atras</string>
+    <string name="settings_week_numbers">Números de semana</string>
+    <string name="settings_week_numbers_summary">Muestra los números de las semanas en la vista mensual</string>
+    <string name="calendars_export_title">Exportar calendarios</string>
+    <string name="calendars_export_hint">Escoge que calendarios incluir en el archivo .ics</string>
+    <string name="calendars_export_action">Exportar</string>
+    <string name="calendars_restore_header">Restaurar</string>
+    <string name="calendars_restore_action">Restaurar por archivo .ics</string>
+    <string name="calendars_restore_hint">Importar eventos desde un respaldo u otra aplicación de calendario.</string>
+    <string name="import_done_dedup_note">Se omitieron los eventos ya presentes en el calendario.</string>
+    <string name="import_done_added_label">Añadido</string>
+    <string name="import_done_skipped_label">Duplicados</string>
+    <string name="import_button">Importar</string>
+    <plurals name="import_title_count">
+        <item quantity="one">Importando %d evento</item>
+        <item quantity="many">Importando %d eventos</item>
+        <item quantity="other">Importando %d eventos</item>
+    </plurals>
 </resources>

app/src/main/res/values-fr/strings.xml

@@ -6,4 +6,151 @@
         <item>Days</item>
         <item>Weeks</item>
     </string-array>
+    <string name="app_name">Calendrier</string>
+    <string name="app_tagline">Un calendrier moderne.</string>
+    <string name="state_loading">Chargement…</string>
+    <string name="state_retry">Réessayer</string>
+    <string name="state_failure_unknown">Une erreur s\'est produit.</string>
+    <string name="state_failure_permission">Un accès au Calendrier est nécessaire.</string>
+    <string name="state_failure_permission_action">Autoriser l\'accès</string>
+    <string name="state_failure_no_calendars">Aucun calendrier configuré.</string>
+    <string name="state_failure_no_calendars_action">Ouvrir les paramètres du calendrier.</string>
+    <string name="state_failure_provider">Ne peut pas lire le calendrier.</string>
+    <string name="permission_rationale_title">Tous les évènements ont été trouvés.</string>
+    <string name="permission_rationale_body">Calendula a besoin d\'avoir accès à votre calendrier pour afficher et accéder aux événements. C\'est tout ce dont nous avons besoin, aucune données ne sort de votre appareil.</string>
+    <string name="permission_request_button">Autoriser l\'accès au calendrier</string>
+    <string name="permission_denied_title">Accès au calendrier refusé.</string>
+    <string name="permission_denied_body">Calendula ne peut pas afficher les évènements si elle ne peut pas accéder au calendrier. Vous pouvez l\'autoriser à tout moment dans les paramètres.</string>
+    <string name="permission_open_settings_button">Ouvrir les paramètres.</string>
+    <string name="permission_retry_button">Essayer à nouveau</string>
+    <string name="permission_benefit_private_title">Reste sur votre appareil</string>
+    <string name="permission_benefit_private_body">Vos calendriers sont lus localement et ne quittent jamais le téléphone.</string>
+    <string name="permission_benefit_sync_title">Tous vos calendriers, réunis</string>
+    <string name="permission_benefit_privacy_title">Aucun suivi, jamais</string>
+    <string name="permission_benefit_privacy_body">Aucune collecte de données, aucune analyse, pas de pubs</string>
+    <string name="permission_privacy_footnote">Reste sur votre appareil - Pas d\'utilisation d\'Internet</string>
+    <string name="month_prev">Mois précédent</string>
+    <string name="month_next">Prochain mois</string>
+    <string name="month_today_action">Aujourd\'hui</string>
+    <string name="month_more_actions">Plus d\'actions</string>
+    <string name="month_open_menu">Ouvrir le menu</string>
+    <string name="month_action_settings">Paramètres</string>
+    <string name="month_a11y_today_prefix">Aujourd\'hui</string>
+    <string name="week_today_action">Cette semaine</string>
+    <string name="day_today_action">Aujourd\'hui</string>
+    <string name="event_detail_back">Retour</string>
+    <string name="event_detail_edit">Modifier</string>
+    <string name="event_detail_delete">Supprimer</string>
+    <string name="event_detail_share">Partager</string>
+    <string name="event_share_chooser_title">Evénement partagé</string>
+    <string name="event_share_failed">Impossible de partager cet événement.</string>
+    <string name="event_delete_title">Evénement supprimé ?</string>
+    <string name="event_delete_body">Cet événement est retiré de votre calendrier et de chaque appareil auquel il est synchronisé.</string>
+    <string name="event_delete_recurring_title">Supprimer l\'événement récurrent</string>
+    <string name="event_delete_option_occurrence">Seulement cet événement</string>
+    <string name="event_delete_option_following">Cet événement et tous ceux qui suivent</string>
+    <string name="event_delete_option_series">Tous les événements de la série</string>
+    <string name="event_edit_recurring_title">Modifier l\'événement récurrent</string>
+    <string name="event_delete_failed">Impossible de supprimer l\'événement</string>
+    <string name="event_delete_write_denied">Calendula a besoin des droits d\'écriture pour supprimer des événements</string>
+    <string name="dialog_cancel">Annuler</string>
+    <string name="dialog_ok">OK</string>
+    <string name="event_edit_new_title">Nouvel événement</string>
+    <string name="event_edit_close">Fermer</string>
+    <string name="event_edit_save">Sauvegarder</string>
+    <string name="event_edit_title_hint">Ajouter un titre</string>
+    <string name="event_edit_managed_hint">dirigé par \"%1$s\" - titre, date, et répétitions sont synchronisés avec les contacts. Pour rappel, vous pouvez modifier la localisation et les notes à tout instant.</string>
+    <string name="event_edit_starts">Début</string>
+    <string name="event_edit_ends">Fin</string>
+    <string name="event_edit_error_end_before_start">La fin commence avant le début</string>
+    <string name="event_edit_error_no_calendar">Aucun calendrier n\'est disponible en écriture</string>
+    <string name="event_edit_save_failed">Impossible d\'enregistrer l\'événement</string>
+    <string name="event_edit_write_denied">Calendula a besoin des droits d\'écriture pour créer un événement</string>
+    <string name="event_edit_more_fields">Plus de champs</string>
+    <string name="event_edit_add">Ajouter</string>
+    <string name="event_edit_add_reminder">Ajouter un rappel</string>
+    <string name="event_edit_remove_reminder">Supprimer le rappel</string>
+    <string name="event_edit_attendees">Invités</string>
+    <string name="event_edit_add_guest">Ajouter un invité</string>
+    <string name="event_edit_add_guest_hint">Ajouter un invité à partir d\'un email…</string>
+    <string name="event_edit_add_guest_from_contacts">Ajouter à partir des contacts</string>
+    <string name="event_edit_location_from_contacts">Sélectionner une adresse dans les contacts</string>
+    <string name="event_edit_remove_guest">Retirer un invité</string>
+    <string name="event_edit_attendee_required">Requis</string>
+    <string name="event_edit_attendee_optional">Optionnel</string>
+    <string name="event_edit_attendees_note_synced">Calendula n\'envoie pas d\'invitations. Votre calendrier par défaut peut envoyer des e-mails aux invités lors de la synchronisation.</string>
+    <string name="event_edit_attendees_note_local">Stocké sur cet appareil. Personne d\'autres n\'y a accès.</string>
+    <string name="event_edit_reminder_custom">Personnaliser</string>
+    <string name="reminder_unit_minutes">minutes</string>
+    <string name="reminder_unit_hours">heures</string>
+    <string name="reminder_unit_days">jours</string>
+    <string name="reminder_unit_weeks">semaines</string>
+    <string name="event_edit_availability">Disponibilité</string>
+    <string name="event_edit_visibility">Visibilité</string>
+    <string name="event_edit_color">Couleur</string>
+    <string name="event_edit_color_default">Couleur du calendrier</string>
+    <string name="event_edit_color_custom">Personnaliser la couleur</string>
+    <string name="event_edit_color_reset">Réinitialiser</string>
+    <string name="event_edit_color_unsupported">Non disponible pour ce calendrier</string>
+    <string name="event_edit_color_unsupported_hint">Ce calendrier ne propose aucun ensemble de couleurs. Vous pouvez autoriser des couleurs personnalisées pour ces calendriers dans les paramètres.</string>
+    <string name="event_edit_color_sync_warning">Ce calendrier pourrait retirer ou remplacer la couleur lors de sa prochaine synchronisation.</string>
+    <string name="event_edit_conflict_title">L\'événement a changé ailleurs</string>
+    <string name="event_edit_conflict_body">Durant l\'édition, cet événement a été altéré - par la synchronisation ou une autre application. Voulez-vous enregistrer ou annuler vos modifications ?</string>
+    <string name="event_edit_conflict_overwrite">Enregistrer mes modifications</string>
+    <string name="event_edit_conflict_overwrite_hint">Seuls les champs que vous modifiez remplacent l\'altération externe</string>
+    <string name="event_edit_conflict_discard">Annuler mes modifications</string>
+    <string name="event_edit_conflict_discard_hint">L’événement reste tel qu’il est maintenant</string>
+    <string name="event_edit_gone_title">Evénement supprimé</string>
+    <string name="event_edit_gone_body">Cet événement a été supprimé entre-temps, par exemple sur un autre appareil. Vos modifications ne peuvent plus être enregistrées.</string>
+    <string name="import_reminder_prompt_title">Appliquer votre rappel par défaut ?</string>
+    <string name="import_reminder_prompt_body_none">Cet événement a été importé sans aucun rappel.</string>
+    <plurals name="import_reminder_prompt_body_existing">
+        <item quantity="one">Cet événement a été importé avec %1$d rappel.</item>
+        <item quantity="many">Cet événement a été importé avec %1$d rappels.</item>
+        <item quantity="other">Cet événement a été importé avec %1$d rappels.</item>
+    </plurals>
+    <string name="import_reminder_prompt_apply">Appliquer par défaut</string>
+    <string name="import_reminder_prompt_keep">Garder tel quel</string>
+    <string name="event_edit_recurrence_none">Pas de répétitions</string>
+    <string name="event_edit_recurrence_custom">Personnaliser</string>
+    <string name="event_edit_recurrence_every">Chaque</string>
+    <string name="recurrence_unit_days">jours</string>
+    <string name="recurrence_unit_weeks">semaines</string>
+    <string name="recurrence_unit_months">mois</string>
+    <string name="recurrence_unit_years">années</string>
+    <string name="event_edit_recurrence_ends">Fin</string>
+    <string name="event_edit_recurrence_end_never">Jamais</string>
+    <string name="event_edit_recurrence_end_until">A une date</string>
+    <string name="event_edit_recurrence_end_count">Après un nombre de fois</string>
+    <string name="event_edit_recurrence_times">fois</string>
+    <string name="event_edit_error_recurrence_ends_before_start">Les répétitions s\'arrêtent avant le début de l\'événement</string>
+    <string name="event_availability_busy">Occupé</string>
+    <string name="event_access_default">Par défaut</string>
+    <string name="event_access_public">Publique</string>
+    <string name="event_detail_all_day">Journée entière</string>
+    <string name="event_detail_calendar">Calendrier</string>
+    <string name="event_detail_calendar_unknown">Calendrier non reconnu</string>
+    <string name="event_detail_location">Lieux</string>
+    <string name="event_detail_description">Description</string>
+    <string name="event_detail_attendees">participants</string>
+    <string name="event_detail_recurrence">Récurrence</string>
+    <string name="event_detail_recurring">Evénement répété</string>
+    <string name="recurrence_daily">Tous les jours</string>
+    <string name="recurrence_weekly">Toutes les semaines</string>
+    <string name="recurrence_monthly">Tous les mois</string>
+    <string name="recurrence_yearly">Tous les ans</string>
+    <string name="recurrence_every_n_days">Tous les %1$d jours</string>
+    <string name="recurrence_every_n_weeks">Toutes les %1$d semaines</string>
+    <string name="recurrence_every_n_months">Tous les %1$d mois</string>
+    <string name="recurrence_every_n_years">Tous les %1$d ans</string>
+    <string name="recurrence_on_days">%1$s sur %2$s</string>
+    <string name="recurrence_with_until">%1$s jusqu\'à %2$s</string>
+    <string name="recurrence_with_count">%1$s, %2$d fois</string>
+    <string name="event_detail_not_found">Cet événement n\'existe plus.</string>
+    <string name="event_attendee_accepted">Accepté</string>
+    <string name="event_attendee_declined">Refusé</string>
+    <string name="event_attendee_tentative">Provisoire</string>
+    <string name="event_attendee_needs_action">Aucune réponse</string>
+    <string name="event_attendee_unknown">—</string>
+    <string name="event_detail_reminders">Rappels</string>
 </resources>

app/src/main/res/values-it/strings.xml

@@ -16,17 +16,17 @@
     <string name="state_failure_no_calendars">Nessun calendario configurato.</string>
     <string name="state_failure_no_calendars_action">Apri le impostazioni calendario di sistema</string>
     <string name="state_failure_provider">Errore nella lettura del calendario.</string>
-    <string name="permission_rationale_title">Guarda tutti i tuoi eventi, magnificamente</string>
-    <string name="permission_rationale_body">Calendula ha bisogno di accedere al tuo calendario per mostrare e gestire gli eventi. È l\'unica cosa che ti chiederà.</string>
+    <string name="permission_rationale_title">Gestisci magnificamente tutti i tuoi eventi</string>
+    <string name="permission_rationale_body">Calendula ha bisogno di accedere al tuo calendario per mostrare e gestire gli eventi. È l\'unica cosa di cui ha bisogno e nessuna informazione lascerà mai il tuo dispositivo.</string>
     <string name="permission_request_button">Concedi l\'accesso al calendario</string>
     <string name="permission_denied_title">Accesso al calendario negato</string>
     <string name="permission_denied_body">Calendula non può mostrare gli eventi senza accesso al calendario. Puoi concederlo dalle impostazioni di sistema.</string>
     <string name="permission_open_settings_button">Apri le impostazioni di sistema</string>
     <string name="permission_retry_button">Riprova</string>
     <string name="permission_benefit_private_title">Rimane sul tuo dispositivo</string>
-    <string name="permission_benefit_private_body">I tuoi calendari sono letti localmente e non lasciano mai il tuo telefono.</string>
+    <string name="permission_benefit_private_body">I tuoi calendari sono letti localmente e non lasciano mai il tuo dispositivo.</string>
     <string name="permission_benefit_sync_title">Tutti i tuoi calendari, insieme</string>
-    <string name="permission_benefit_sync_body">Google, CalDAV, locali - qualsiasi calendario sincronizzato sul dispositivo semplicemente compare.</string>
+    <string name="permission_benefit_sync_body">Google, CalDAV, locali - qualsiasi calendario sincronizzato sul dispositivo, semplicemente, compare.</string>
     <string name="permission_benefit_privacy_title">Nessun tracking, per sempre</string>
     <string name="permission_benefit_privacy_body">Zero telemetria, zero analytics, zero pubblicità.</string>
     <string name="permission_privacy_footnote">Rimane sul tuo dispositivo - nessun accesso a internet</string>
@@ -38,7 +38,7 @@
     <string name="month_action_settings">Impostazioni</string>
     <string name="month_a11y_today_prefix">Oggi</string>
     <string name="week_today_action">Questa settimana</string>
-    <string name="week_number_label">Wk</string>
+    <string name="week_number_label">Sett.</string>
     <string name="day_today_action">Oggi</string>
     <string name="event_detail_back">Indietro</string>
     <string name="event_detail_edit">Modifica</string>
@@ -73,14 +73,14 @@
     <string name="event_edit_remove_reminder">Rimuovi promemoria</string>
     <string name="event_edit_attendees">Partecipanti</string>
     <string name="event_edit_add_guest">Aggiungi partecipante</string>
-    <string name="event_edit_add_guest_hint">Aggiungi un partecipante via email…</string>
+    <string name="event_edit_add_guest_hint">Aggiungi un partecipante tramite indirizzo email…</string>
     <string name="event_edit_add_guest_from_contacts">Aggiungi dai contatti</string>
     <string name="event_edit_location_from_contacts">Scegli un indirizzo dai contatti</string>
     <string name="event_edit_remove_guest">Rimuovi partecipante</string>
     <string name="event_edit_attendee_required">Obbligatorio</string>
     <string name="event_edit_attendee_optional">Facoltativo</string>
     <string name="event_edit_attendees_note_synced">Calendula non manda gli inviti agli eventi. Il tuo account calendario potrà inviare le email ai partecipanti al momento della sincronizzazione.</string>
-    <string name="event_edit_attendees_note_local">Salvato sul dispositivo. Nessuno ha ricevuto notifiche.</string>
+    <string name="event_edit_attendees_note_local">Salvato sul dispositivo. Nessuno dei partecipanti ha ricevuto notifiche.</string>
     <string name="event_edit_reminder_custom">Personalizza</string>
     <string name="reminder_unit_minutes">minuti</string>
     <string name="reminder_unit_hours">ore</string>
@@ -89,7 +89,7 @@
     <string name="event_edit_availability">Disponibilità</string>
     <string name="event_edit_visibility">Visibilità</string>
     <string name="event_edit_color">Colore</string>
-    <string name="event_edit_color_default">Colore calendario</string>
+    <string name="event_edit_color_default">Colore del calendario</string>
     <string name="event_edit_color_custom">Colore personalizzato</string>
     <string name="event_edit_color_reset">Reset</string>
     <string name="event_edit_color_unsupported">Non disponibile per questo calendario</string>
@@ -99,13 +99,13 @@
     <string name="event_edit_conflict_body">Durante la modifica l\'evento è stato cambiato, tramite sincronizzazione o tramite altra app. Cosa fare con le modifiche in corso?</string>
     <string name="event_edit_conflict_overwrite">Salva le modifiche</string>
     <string name="event_edit_conflict_overwrite_hint">Sovrascrivi solo i campi modificati</string>
-    <string name="event_edit_conflict_discard">Annulla le mie modifiche</string>
-    <string name="event_edit_conflict_discard_hint">Mantieni l\'evento com\'è ora</string>
+    <string name="event_edit_conflict_discard">Annulla le modifiche</string>
+    <string name="event_edit_conflict_discard_hint">Lascia l\'evento invariato</string>
     <string name="event_edit_gone_title">Evento eliminato</string>
     <string name="event_edit_gone_body">Nel frattempo, questo evento è stato eliminato, ad esempio su un altro dispositivo. Le modifiche non possono più essere salvate.</string>
     <string name="event_edit_recurrence_none">Non si ripete</string>
     <string name="event_edit_recurrence_custom">Personalizza</string>
-    <string name="event_edit_recurrence_every">La serie</string>
+    <string name="event_edit_recurrence_every">Ogni</string>
     <string name="recurrence_unit_days">giorni</string>
     <string name="recurrence_unit_weeks">settimane</string>
     <string name="recurrence_unit_months">mesi</string>
@@ -113,7 +113,7 @@
     <string name="event_edit_recurrence_ends">Fine</string>
     <string name="event_edit_recurrence_end_never">Mai</string>
     <string name="event_edit_recurrence_end_until">Fino alla data</string>
-    <string name="event_edit_recurrence_end_count">Dopo un certo numero di occorrenze</string>
+    <string name="event_edit_recurrence_end_count">Numero di occorrenze</string>
     <string name="event_edit_recurrence_times">occorrenze</string>
     <string name="event_edit_error_recurrence_ends_before_start">Fine antecedente l\'inizio</string>
     <string name="event_availability_busy">Occupato</string>
@@ -125,7 +125,7 @@
     <string name="event_detail_location">Luogo</string>
     <string name="event_detail_description">Descrizione</string>
     <string name="event_detail_attendees">Partecipanti</string>
-    <string name="recurrence_daily">Ogni giorni</string>
+    <string name="recurrence_daily">Ogni giorno</string>
     <string name="recurrence_weekly">Ogni settimana</string>
     <string name="recurrence_monthly">Ogni mese</string>
     <string name="recurrence_yearly">Ogni anno</string>
@@ -204,7 +204,7 @@
     <string name="reminder_benefit_reversible_body">Lo switch è nelle Impostazioni, sezione Notifiche.</string>
     <string name="reminder_onboarding_enable_button">Attiva i promemoria</string>
     <string name="reminder_onboarding_skip_button">Non ora</string>
-    <string name="reminder_action_snooze">Posponi</string>
+    <string name="reminder_action_snooze">Posticipa</string>
     <string name="reminder_action_dismiss">Ignora</string>
     <string name="view_month">Mese</string>
     <string name="view_week">Settimana</string>
@@ -418,16 +418,16 @@
     <string name="settings_default_reminder">Promemoria standard</string>
     <string name="settings_notifications_subtitle">Promemoria evento</string>
     <string name="shortcut_new_event_short">Nuovo evento</string>
-    <string name="event_edit_managed_hint">Gestito da “%1$s” - titolo, data e ripetizioni sono sincronizzate dai tuoi contatti. Promemoria e note sono modificabili dall\'utente</string>
-    <string name="settings_font_headings">Carattere dell\'intestazione</string>
+    <string name="event_edit_managed_hint">Gestito da “%1$s” - titolo, data e ripetizioni sono sincronizzate dai tuoi contatti. Promemoria e note sono modificabili dall\'utente.</string>
+    <string name="settings_font_headings">Carattere del titolo</string>
     <string name="settings_font_body">Carattere del corpo</string>
     <string name="settings_font_system">Predefinito di sistema</string>
     <string name="settings_font_choose_file">Scegli file…</string>
-    <string name="settings_font_custom_selected">Carattere personalizzato</string>
+    <string name="settings_font_custom_selected">Font personalizzato</string>
     <string name="settings_font_import_failed">Impossibile leggere il file come font</string>
     <string name="settings_section_views">Viste</string>
     <string name="settings_quick_switch_header">Pulsante di cambio rapido</string>
-    <string name="settings_quick_switch_hint">Scegli attraverso quali viste scorrere mediante il pulsante in alto a destra, trascinale per riordinarle. Le viste disattivate rimangono raggiungibili dal menù di navigazione.</string>
+    <string name="settings_quick_switch_hint">Scegli attraverso quali viste scorrere col pulsante in alto a destra, trascinale per riordinarle. Le viste disattivate rimangono raggiungibili dal menù di navigazione.</string>
     <string name="settings_drawer_order_header">Menù di navigazione</string>
     <string name="settings_drawer_order_hint">Trascina per riordinare le viste elencate nel menù di navigazione.</string>
     <string name="reorder_drag_handle">Trascina per riordinare</string>
@@ -463,4 +463,7 @@
     <string name="special_dates_calendar_custom">Date speciali</string>
     <string name="special_dates_default_title_birthday">Compleanno di {name} ({year})</string>
     <string name="special_dates_default_title_anniversary">Anniversario di {name} ({year})</string>
+    <string name="font_lora">Lora</string>
+    <string name="font_jetbrains_mono">JetBrains Mono</string>
+    <string name="special_dates_default_title_custom">{name}</string>
 </resources>

app/src/main/res/values-pl/strings.xml

@@ -6,4 +6,295 @@
         <item>Days</item>
         <item>Weeks</item>
     </string-array>
+    <string name="app_tagline">Nowoczesny kalendarz.</string>
+    <string name="state_loading">Ładowanie…</string>
+    <string name="state_retry">Spróbuj ponownie</string>
+    <string name="state_failure_unknown">Coś poszło nie tak.</string>
+    <string name="state_failure_permission">Dostęp do kalendarza jest wymagany.</string>
+    <string name="state_failure_permission_action">Przyznaj dostęp</string>
+    <string name="state_failure_no_calendars">Brak skonfigurowanych kalendarzy.</string>
+    <string name="state_failure_no_calendars_action">Otwórz systemowe ustawienia kalendarza</string>
+    <string name="state_failure_provider">Nie udało się kalendarza.</string>
+    <string name="permission_rationale_title">Zobacz wszystkie swoje wydarzenia w pięknej oprawie</string>
+    <string name="permission_rationale_body">Calendula potrzebuje dostępu do Twojego kalendarza, aby wyświetlać wydarzenia i nimi zarządzać. To jedyne, o co prosi na wstępie — i żadne dane nigdy nie opuszczają Twojego urządzenia.</string>
+    <string name="permission_request_button">Przyznaj dostęp do kalendarza</string>
+    <string name="permission_denied_title">Brak dostępu do kalendarza</string>
+    <string name="permission_denied_body">Calendula nie może wyświetlać wydarzeń bez dostępu do kalendarza. Możesz go ponownie przyznać w ustawieniach systemowych.</string>
+    <string name="permission_open_settings_button">Otwórz ustawienia systemowe</string>
+    <string name="permission_retry_button">Spróbuj ponownie</string>
+    <string name="permission_benefit_private_title">Pozostaje na Twoim urządzeniu</string>
+    <string name="permission_benefit_private_body">Twoje kalendarze są odczytywane lokalnie i nigdy nie opuszczają telefonu.</string>
+    <string name="permission_benefit_sync_title">Wszystkie Twoje kalendarze w jednym miejscu</string>
+    <string name="permission_benefit_sync_body">Google, CalDAV, lokalne — wszystko, co jest zsynchronizowane z urządzeniem, po prostu się pojawia.</string>
+    <string name="permission_benefit_privacy_title">Nigdy żadnego śledzenia</string>
+    <string name="permission_benefit_privacy_body">Zero telemetrii, zero analityki, bez reklam.</string>
+    <string name="permission_privacy_footnote">Pozostaje na Twoim urządzeniu - brak uprawnień do internetu</string>
+    <string name="month_prev">Poprzedni miesiąc</string>
+    <string name="month_next">Następny miesiąc</string>
+    <string name="month_today_action">Dzisiaj</string>
+    <string name="month_more_actions">Więcej akcji</string>
+    <string name="month_open_menu">Otwórz menu</string>
+    <string name="month_action_settings">Ustawienia</string>
+    <string name="month_a11y_today_prefix">Dzisiaj</string>
+    <string name="week_today_action">Bieżący tydzień</string>
+    <string name="week_number_label">tydz.</string>
+    <string name="day_today_action">Dzisiaj</string>
+    <string name="event_detail_back">Wstecz</string>
+    <string name="event_detail_edit">Edytuj</string>
+    <string name="event_detail_delete">Usuń</string>
+    <string name="event_detail_share">Udostępnij</string>
+    <string name="event_share_chooser_title">Udostępnij wydarzenie</string>
+    <string name="event_share_failed">Nie udało się udostępnić tego wydarzenia.</string>
+    <string name="event_delete_title">Usunąć wydarzenie?</string>
+    <string name="event_delete_body">Usunięto wydarzenie z Twojego kalendarza i wszystkich zsynchronizowanych urządzeń.</string>
+    <string name="event_delete_recurring_title">Usuń powtarzające się wydarzenie</string>
+    <string name="event_delete_option_occurrence">Tylko to wystąpienie</string>
+    <string name="event_delete_option_following">To i wszystkie następne wystąpienia</string>
+    <string name="event_delete_option_series">Wszystkie wystąpienia w serii</string>
+    <string name="event_edit_recurring_title">Edytuj powtarzające się wydarzenie</string>
+    <string name="event_delete_failed">Nie udało się usunąć tego wydarzenia</string>
+    <string name="event_delete_write_denied">Calendula wymaga uprawnień do zapisu, aby móc usuwać wydarzenia</string>
+    <string name="dialog_cancel">Anuluj</string>
+    <string name="dialog_ok">OK</string>
+    <string name="event_edit_new_title">Nowe wydarzenie</string>
+    <string name="event_edit_close">Zamknij</string>
+    <string name="event_edit_save">Zapisz</string>
+    <string name="event_edit_title_hint">Dodaj tytuł</string>
+    <string name="event_edit_managed_hint">Zarządzane przez „%1$s” — tytuł, data i powtarzanie są synchronizowane z Twoimi kontaktami. Możesz edytować przypomnienia, lokalizację oraz notatki.</string>
+    <string name="event_edit_starts">Początek</string>
+    <string name="event_edit_ends">Koniec</string>
+    <string name="event_edit_error_end_before_start">Koniec wcześniejszy niż początek</string>
+    <string name="event_edit_error_no_calendar">Brak dostępnych kalendarzy z uprawnieniami do zapisu</string>
+    <string name="event_edit_save_failed">Nie udało się zapisać wydarzenia</string>
+    <string name="event_edit_write_denied">Calendula potrzebuje uprawnień do zapisu by tworzyć wydarzenia</string>
+    <string name="event_edit_more_fields">Więcej pól</string>
+    <string name="event_edit_add">Dodaj</string>
+    <string name="event_edit_add_reminder">Dodaj przypomnienie</string>
+    <string name="event_edit_remove_reminder">Usuń przypomnienie</string>
+    <string name="event_edit_attendees">Goście</string>
+    <string name="event_edit_add_guest">Dodaj gościa</string>
+    <string name="event_edit_add_guest_hint">Dodaj gościa poprzez adres e-mail…</string>
+    <string name="event_edit_add_guest_from_contacts">Dodaj z kontaktów</string>
+    <string name="event_edit_location_from_contacts">Wybierz adres z kontaktów</string>
+    <string name="event_edit_remove_guest">Usuń gościa</string>
+    <string name="event_edit_attendee_required">Wymagany</string>
+    <string name="event_edit_attendee_optional">Opcjonalny</string>
+    <string name="event_edit_attendees_note_synced">Calendula nie wysyła zaproszeń. Twoje konto kalendarza może wysyłać e-maile do gości podczas synchronizacji.</string>
+    <string name="event_edit_attendees_note_local">Przechowywane na urządzeniu. Nikt nie jest powiadamiany.</string>
+    <string name="event_edit_reminder_custom">Niestandardowy</string>
+    <string name="reminder_unit_minutes">minuty</string>
+    <string name="reminder_unit_hours">godziny</string>
+    <string name="reminder_unit_days">dni</string>
+    <string name="reminder_unit_weeks">tygodnie</string>
+    <string name="event_edit_availability">Dostępność</string>
+    <string name="event_edit_visibility">Widoczność</string>
+    <string name="event_edit_color">Kolor</string>
+    <string name="event_edit_color_default">Kolor kalendarza</string>
+    <string name="event_edit_color_custom">Niestandardowy kolor</string>
+    <string name="event_edit_color_reset">Resetuj</string>
+    <string name="event_edit_color_unsupported">Niedostępne dla tego kalendarza</string>
+    <string name="event_edit_color_unsupported_hint">Ten kalendarz nie udostępnia zestawu kolorów. Możesz zezwolić na niestandardowe kolory dla takich kalendarzy w Ustawieniach.</string>
+    <string name="event_edit_color_sync_warning">Ten kalendarz może usunąć lub nadpisać kolor przy następnej synchronizacji.</string>
+    <string name="event_edit_conflict_title">Wydarzenie zostało zmienione w innym miejscu</string>
+    <string name="event_edit_conflict_body">Podczas edycji to wydarzenie zostało zmienione przez synchronizację lub inną aplikację. Co ma się stać z Twoimi zmianami?</string>
+    <string name="event_edit_conflict_overwrite">Zapisz moje zmiany</string>
+    <string name="event_edit_conflict_overwrite_hint">Tylko edytowane przez Ciebie pola nadpiszą zmiany zewnętrzne</string>
+    <string name="event_edit_conflict_discard">Odrzuć moje zmiany</string>
+    <string name="event_edit_conflict_discard_hint">Wydarzenie pozostaje bez zmian</string>
+    <string name="event_edit_gone_title">Wydarzenie usunięte</string>
+    <string name="event_edit_gone_body">To wydarzenie zostało w międzyczasie usunięte, na przykład na innym urządzeniu. Twoje zmiany nie mogą już zostać zapisane.</string>
+    <string name="import_reminder_prompt_title">Użyć domyślnego przypomnienia?</string>
+    <string name="import_reminder_prompt_body_none">To wydarzenie zostało zaimportowane bez żadnych przypomnień.</string>
+    <plurals name="import_reminder_prompt_body_existing">
+        <item quantity="one">To wydarzenie zostało zaimportowane z %1$d przypomnieniem.</item>
+        <item quantity="few">To wydarzenie zostało zaimportowane z %1$d przypomnieniami.</item>
+        <item quantity="many">To wydarzenie zostało zaimportowane z %1$d przypomnieniami.</item>
+        <item quantity="other">To wydarzenie zostało zaimportowane z %1$d przypomnieniami.</item>
+    </plurals>
+    <string name="import_reminder_prompt_apply">Użyj domyślnego</string>
+    <string name="import_reminder_prompt_keep">Pozostaw bez zmian</string>
+    <string name="event_edit_recurrence_none">Nie powtarza się</string>
+    <string name="event_edit_recurrence_custom">Własne</string>
+    <string name="event_edit_recurrence_every">Co</string>
+    <string name="recurrence_unit_days">dni</string>
+    <string name="recurrence_unit_weeks">tygodnie</string>
+    <string name="recurrence_unit_months">miesiące</string>
+    <string name="recurrence_unit_years">lata</string>
+    <string name="event_edit_recurrence_ends">Koniec</string>
+    <string name="event_edit_recurrence_end_never">Nigdy</string>
+    <string name="event_edit_recurrence_end_until">Wybrana data</string>
+    <string name="event_edit_recurrence_end_count">Po wybranej liczbie powtórzeń</string>
+    <string name="event_edit_recurrence_times">razy</string>
+    <string name="event_edit_error_recurrence_ends_before_start">Koniec powtarzania przed początkiem wydarzenia</string>
+    <string name="event_availability_busy">Zajęty</string>
+    <string name="event_access_default">Domyślny</string>
+    <string name="event_access_public">Publiczny</string>
+    <string name="event_detail_all_day">Cały dzień</string>
+    <string name="event_detail_calendar">Kalendarz</string>
+    <string name="event_detail_calendar_unknown">Nieznany kalendarz</string>
+    <string name="event_detail_location">Lokalizacja</string>
+    <string name="event_detail_description">Opis</string>
+    <string name="event_detail_attendees">Uczestnicy</string>
+    <string name="event_detail_recurrence">Powtarzanie</string>
+    <string name="event_detail_recurring">Powtarzające się wydarzenie</string>
+    <string name="recurrence_daily">Codziennie</string>
+    <string name="recurrence_weekly">Co tydzień</string>
+    <string name="recurrence_monthly">Co miesiąc</string>
+    <string name="recurrence_yearly">Co rok</string>
+    <string name="recurrence_every_n_days">Co %1$d dni</string>
+    <string name="recurrence_every_n_weeks">Co %1$d tygodni</string>
+    <string name="recurrence_every_n_months">Co %1$d miesięcy</string>
+    <string name="recurrence_every_n_years">Co %1$d lata</string>
+    <string name="recurrence_on_days">%1$s w %2$s</string>
+    <string name="recurrence_with_until">%1$s do %2$s</string>
+    <string name="recurrence_with_count">%1$s, %2$d razy</string>
+    <string name="event_detail_not_found">To wydarzenie już nie istnieje.</string>
+    <string name="event_attendee_accepted">Zaakceptowano</string>
+    <string name="event_attendee_declined">Odrzucono</string>
+    <string name="event_attendee_tentative">Niepewny</string>
+    <string name="event_attendee_needs_action">Brak odpowiedzi</string>
+    <string name="event_attendee_unknown">—</string>
+    <string name="event_detail_reminders">Przypomnienia</string>
+    <string name="event_detail_timezone">Strefa czasowa</string>
+    <string name="event_status_tentative">Niepewne</string>
+    <string name="event_status_cancelled">Odwołane</string>
+    <string name="event_availability_free">Dostępny</string>
+    <string name="event_access_private">Prywatne</string>
+    <string name="event_access_confidential">Poufne</string>
+    <string name="event_attendee_organizer">Organizator</string>
+    <string name="event_attendee_optional">Opcjonalny</string>
+    <string name="event_attendee_resource">Zasób</string>
+    <string name="event_detail_self_response">Twoja odpowiedź: %1$s</string>
+    <string name="reminder_at_time">W momencie wydarzenia</string>
+    <string name="reminder_default">Domyślne przypomnienie</string>
+    <plurals name="reminder_minutes">
+        <item quantity="one">%d minuta przed</item>
+        <item quantity="few">%d minuty przed</item>
+        <item quantity="many">%d minut przed</item>
+        <item quantity="other">%d minut przed</item>
+    </plurals>
+    <plurals name="reminder_hours">
+        <item quantity="one">%d godzina przed</item>
+        <item quantity="few">%d godziny przed</item>
+        <item quantity="many">%d godzin przed</item>
+        <item quantity="other">%d godzin przed</item>
+    </plurals>
+    <plurals name="reminder_days">
+        <item quantity="one">%d dzień przed</item>
+        <item quantity="few">%d dni przed</item>
+        <item quantity="many">%d dni przed</item>
+        <item quantity="other">%d dni przed</item>
+    </plurals>
+    <plurals name="reminder_weeks">
+        <item quantity="one">%d tydzień przed</item>
+        <item quantity="few">%d tygodnie przed</item>
+        <item quantity="many">%d tygodni przed</item>
+        <item quantity="other">%d tygodni przed</item>
+    </plurals>
+    <plurals name="duration_minutes">
+        <item quantity="one">%d minuta</item>
+        <item quantity="few">%d minuty</item>
+        <item quantity="many">%d minut</item>
+        <item quantity="other">%d minut</item>
+    </plurals>
+    <plurals name="duration_hours">
+        <item quantity="one">%d godzina</item>
+        <item quantity="few">%d godziny</item>
+        <item quantity="many">%d godzin</item>
+        <item quantity="other">%d godzin</item>
+    </plurals>
+    <plurals name="duration_days">
+        <item quantity="one">%d dzień</item>
+        <item quantity="few">%d dni</item>
+        <item quantity="many">%d dni</item>
+        <item quantity="other">%d dni</item>
+    </plurals>
+    <plurals name="duration_weeks">
+        <item quantity="one">%d tydzień</item>
+        <item quantity="few">%d tygodnie</item>
+        <item quantity="many">%d tygodni</item>
+        <item quantity="other">%d tygodni</item>
+    </plurals>
+    <string name="event_untitled">(Bez tytułu)</string>
+    <string name="reminder_channel_name">Przypomnienia o wydarzeniach</string>
+    <string name="reminder_channel_description">Powiadomienia w czasie przypomnień o Twoich wydarzeniach</string>
+    <string name="reminder_onboarding_title">Nigdy nie przegap wydarzenia</string>
+    <string name="reminder_onboarding_body">Android sam nie wyświetla przypomnień o wydarzeniach — musi to robić aplikacja kalendarza. Pozwól na to Calenduli.</string>
+    <string name="reminder_benefit_delivery_title">Niezawodne przypomnienia</string>
+    <string name="reminder_benefit_delivery_body">Każde przypomnienie o Twoich wydarzeniach przychodzi jako powiadomienie, dokładnie na czas.</string>
+    <string name="reminder_benefit_duplicates_title">Używasz innej aplikacji kalendarza?</string>
+    <string name="reminder_benefit_duplicates_body">Jeśli inna aplikacja również wysyła przypomnienia, będą one widoczne podwójnie - wyłącz je tam lub tutaj.</string>
+    <string name="reminder_benefit_reversible_title">Możesz to zmienić w dowolnej chwili</string>
+    <string name="reminder_benefit_reversible_body">Przełącznik znajduje się w Ustawieniach, w sekcji Powiadomienia.</string>
+    <string name="reminder_onboarding_enable_button">Włącz przypomnienia</string>
+    <string name="reminder_onboarding_skip_button">Nie teraz</string>
+    <string name="reminder_action_snooze">Drzemka</string>
+    <string name="reminder_action_dismiss">Odrzuć</string>
+    <string name="view_month">Miesiąc</string>
+    <string name="view_week">Tydzień</string>
+    <string name="view_day">Dzień</string>
+    <string name="view_agenda">Agenda</string>
+    <string name="view_section">Widok</string>
+    <string name="drawer_jump_to_date">Skocz do daty</string>
+    <string name="agenda_today_action">Dzisiaj</string>
+    <string name="agenda_header_today">Dzisiaj</string>
+    <string name="agenda_header_tomorrow">Jutro</string>
+    <string name="agenda_empty_title">Jesteś na bieżąco</string>
+    <string name="search_action">Szukaj</string>
+    <string name="search_hint">Szukaj wydarzeń</string>
+    <string name="search_back">Wstecz</string>
+    <string name="search_clear">Wyczyść</string>
+    <string name="search_idle_hint">Przeszukuj swoje wydarzenia według tytułu, lokalizacji lub notatek.</string>
+    <string name="search_empty">Brak wydarzeń pasujących do „%1$s”.</string>
+    <string name="widget_agenda_title">Nadchodzące wydarzenia</string>
+    <string name="widget_agenda_label">Agenda Calendula</string>
+    <string name="widget_month_label">Miesiąc Calendula</string>
+    <string name="widget_refresh">Odśwież</string>
+    <string name="widget_new_event">Nowe wydarzenie</string>
+    <string name="widget_needs_permission">Otwórz Calendula aby przyznać dostęp do kalendarza</string>
+    <string name="widget_prev_month">Poprzedni miesiąc</string>
+    <string name="widget_next_month">Następny miesiąc</string>
+    <string name="widget_today">Dzisiaj</string>
+    <string name="filter_title">Kalendarze</string>
+    <string name="settings_title">Ustawienia</string>
+    <string name="settings_back">Wstecz</string>
+    <string name="back">Wstecz</string>
+    <string name="settings_section_appearance">Wygląd</string>
+    <string name="settings_theme">Motyw</string>
+    <string name="settings_theme_system">Systemowy</string>
+    <string name="settings_theme_light">Jasny</string>
+    <string name="settings_theme_dark">Ciemny</string>
+    <string name="settings_default_view">Domyślny widok</string>
+    <string name="settings_dynamic_color">Dynamiczne kolory</string>
+    <string name="settings_dynamic_color_unavailable">Wymaga Androida 12 lub nowszego</string>
+    <string name="settings_font_headings">Czcionka nagłówków</string>
+    <string name="settings_font_body">Czcionka tekstu</string>
+    <string name="settings_font_system">Domyślna systemu</string>
+    <string name="font_atkinson_hyperlegible">Atkinson Hyperlegible</string>
+    <string name="font_lora">Lora</string>
+    <string name="font_jetbrains_mono">JetBrains Mono</string>
+    <string name="settings_font_choose_file">Wybierz plik…</string>
+    <string name="settings_font_custom_selected">Niestandardowa czcionka</string>
+    <string name="app_name">Calendula</string>
+    <string name="settings_font_import_failed">Nie udało się odczytać czcionki z pliku</string>
+    <string name="settings_week_start">Pierwszy dzień tygodnia</string>
+    <string name="settings_week_start_auto">Automatycznie</string>
+    <string name="settings_week_numbers">Numery tygodni</string>
+    <string name="settings_week_numbers_summary">Pokaż numery tygodni w widoku miesiąca</string>
+    <string name="settings_time_format">Format czasu</string>
+    <string name="settings_time_format_auto">Automatyczny</string>
+    <string name="settings_time_format_12h">12-godzinny (2:00 PM)</string>
+    <string name="settings_time_format_24h">24-godzinny (14:00)</string>
+    <string name="settings_hour_lines">Linie godzin</string>
+    <string name="settings_hour_lines_summary">Pokaż linię oddzielającą przy każdej godzinie w widoku tygodnia i dnia</string>
+    <string name="settings_dim_completed">Przyciemnij zakończone wydarzenia</string>
+    <string name="settings_dim_completed_summary">Przyciemnij wydarzenia, które już się zakończyły w widoku miesiąca i tygodnia</string>
+    <string name="settings_past_events">Przeszłe wydarzenia</string>
+    <string name="settings_past_events_show">Pokaż</string>
+    <string name="settings_past_events_dim">Przyciemnij</string>
+    <string name="settings_past_events_hide">Ukryj</string>
+    <string name="settings_agenda_header">Agenda</string>
+    <string name="settings_agenda_range">Zakres agendy</string>
+    <string name="settings_agenda_range_hint">Jak daleko w przód wyświetlane są wydarzenia na ekranie Agendy.</string>
+    <string name="settings_agenda_widget_range">Zakres widżetu agendy</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -1,6 +1,10 @@
 <resources>
     <string name="app_name">Calendula</string>
     <string name="app_tagline">A modern calendar.</string>
+    <!-- Alternative launcher label offered by the "App name" setting (issue #44).
+         translatable="false": this string becomes a launcher component's label, so
+         it must never be changed by an unreviewed community translation. -->
+    <string name="app_name_calendar_alias" translatable="false">Calendar</string>
 
     <!-- Loading / Failure / Success generic strings (used across screens) -->
     <string name="state_loading">Loading…</string>
@@ -49,6 +53,7 @@
     <string name="event_detail_edit">Edit</string>
     <string name="event_detail_delete">Delete</string>
     <string name="event_detail_share">Share</string>
+    <string name="event_detail_duplicate">Duplicate</string>
     <string name="event_share_chooser_title">Share event</string>
     <string name="event_share_failed">Couldn\'t share this event.</string>
     <string name="event_delete_title">Delete event?</string>
@@ -98,6 +103,18 @@
     <string name="event_edit_availability">Availability</string>
     <string name="event_edit_visibility">Visibility</string>
 
+    <!-- Event form — time zone -->
+    <string name="event_edit_timezone_device">Device time zone</string>
+    <string name="event_edit_timezone_device_summary">Follows wherever you are</string>
+    <string name="event_edit_timezone_search">Search time zones</string>
+    <string name="event_edit_timezone_recent">Recent</string>
+    <string name="event_edit_timezone_all">All time zones</string>
+    <string name="event_edit_timezone_none">No time zone matches “%1$s”</string>
+    <!-- Shown under the time fields when the event is pinned to another zone:
+         the same event expressed where the user actually is. %1$s is a time
+         range, e.g. "2:00 PM – 3:00 PM". -->
+    <string name="event_edit_timezone_local_time">%1$s your time</string>
+
     <!-- Event form — per-event color -->
     <string name="event_edit_color">Color</string>
     <string name="event_edit_color_default">Calendar color</string>
@@ -117,6 +134,16 @@
     <string name="event_edit_gone_title">Event deleted</string>
     <string name="event_edit_gone_body">This event was deleted in the meantime, for example on another device. Your changes can no longer be saved.</string>
 
+    <!-- Event form — apply default reminder to an imported .ics event (#49) -->
+    <string name="import_reminder_prompt_title">Apply your default reminder?</string>
+    <string name="import_reminder_prompt_body_none">This event was imported without any reminder.</string>
+    <plurals name="import_reminder_prompt_body_existing">
+        <item quantity="one">This event was imported with %1$d reminder.</item>
+        <item quantity="other">This event was imported with %1$d reminders.</item>
+    </plurals>
+    <string name="import_reminder_prompt_apply">Apply default</string>
+    <string name="import_reminder_prompt_keep">Keep as-is</string>
+
     <!-- Event form — recurrence picker (v1.3) -->
     <string name="event_edit_recurrence_none">Does not repeat</string>
     <string name="event_edit_recurrence_custom">Custom</string>
@@ -125,6 +152,9 @@
     <string name="recurrence_unit_weeks">weeks</string>
     <string name="recurrence_unit_months">months</string>
     <string name="recurrence_unit_years">years</string>
+    <!-- Shown in place of the live rule read-out when an amount field holds a
+         value outside 1–999 (i.e. 0), so the greyed-out OK button has a reason. -->
+    <string name="event_edit_recurrence_incomplete">Enter a number from 1 to 999</string>
     <string name="event_edit_recurrence_ends">Ends</string>
     <string name="event_edit_recurrence_end_never">Never</string>
     <string name="event_edit_recurrence_end_until">On a date</string>
@@ -226,6 +256,9 @@
     <string name="reminder_onboarding_skip_button">Not now</string>
     <string name="reminder_action_snooze">Snooze</string>
     <string name="reminder_action_dismiss">Dismiss</string>
+    <!-- Day context prefix in a reminder for an event on another day (v2.15.0) -->
+    <string name="reminder_day_tomorrow">Tomorrow</string>
+    <string name="reminder_day_yesterday">Yesterday</string>
 
     <!-- View switcher (M1) -->
     <string name="view_month">Month</string>
@@ -242,6 +275,13 @@
     <string name="agenda_header_today">Today</string>
     <string name="agenda_header_tomorrow">Tomorrow</string>
     <string name="agenda_empty_title">You\'re all caught up</string>
+    <string name="agenda_no_more_today">No more events today</string>
+    <!-- Time line for a multi-day event, on its first / last day (%1$s is a time, e.g. "14:00"). -->
+    <string name="agenda_span_starts">Starts %1$s</string>
+    <string name="agenda_span_ends">Ends %1$s</string>
+
+    <!-- Jump to today (toolbar icon button; see settings_today_toolbar) -->
+    <string name="today_jump_action">Go to today</string>
 
     <!-- Event search -->
     <string name="search_action">Search</string>
@@ -278,6 +318,8 @@
     <string name="settings_default_view">Default view</string>
     <string name="settings_dynamic_color">Dynamic colour</string>
     <string name="settings_dynamic_color_unavailable">Requires Android 12 or newer</string>
+    <string name="settings_soften_colors">Soften calendar colours</string>
+    <string name="settings_soften_colors_summary">Tone calendar and event colours down to fit the theme. Turn off to show the raw colours from the calendar source.</string>
     <string name="settings_font_headings">Headings font</string>
     <string name="settings_font_body">Body font</string>
     <string name="settings_font_system">System default</string>
@@ -291,6 +333,10 @@
     <string name="settings_week_start_auto">Automatic</string>
     <string name="settings_week_numbers">Week numbers</string>
     <string name="settings_week_numbers_summary">Show calendar-week numbers in month view</string>
+    <string name="settings_today_toolbar">Today button in toolbar</string>
+    <string name="settings_today_toolbar_summary">Show a jump-to-today button in the toolbar instead of a floating button</string>
+    <string name="settings_app_name">App name</string>
+    <string name="settings_app_name_summary">Show Calendula as “Calendar” in your launcher. Only the launcher name changes; the icon may move to a new spot after switching.</string>
     <string name="settings_time_format">Time format</string>
     <string name="settings_time_format_auto">Automatic</string>
     <string name="settings_time_format_12h">12-hour (2:00 PM)</string>
@@ -308,6 +354,8 @@
     <string name="settings_agenda_range_hint">How far ahead the Agenda screen lists events.</string>
     <string name="settings_agenda_widget_range">Agenda widget range</string>
     <string name="settings_agenda_widget_range_hint">How far ahead the agenda home-screen widget lists events.</string>
+    <string name="settings_agenda_show_today">Always show today</string>
+    <string name="settings_agenda_show_today_hint">Keep today at the top of the agenda and its widget, even once nothing is left today.</string>
     <string name="settings_agenda_range_bar">Range bar</string>
     <string name="settings_agenda_range_bar_hint">Show a bar at the top of the agenda naming the dates shown, with a button to switch the range for the session</string>
     <string name="agenda_range_day">Today</string>
@@ -324,6 +372,20 @@
         <item quantity="other">%d days</item>
     </plurals>
     <string name="settings_section_views">Views</string>
+    <!-- Month view style (#38, #53) -->
+    <string name="settings_month_header">Month view</string>
+    <string name="settings_month_view_style">Month view style</string>
+    <string name="month_style_paged">Pages</string>
+    <string name="month_style_paged_summary">One month fills the screen. Swipe left or right to change month.</string>
+    <string name="month_style_continuous">Scrolling months</string>
+    <string name="month_style_continuous_summary">Each month sits under its own heading, with a little space setting it apart from the next.</string>
+    <string name="month_style_dense">Seamless weeks</string>
+    <string name="month_style_dense_summary">The weeks run on without a break, each month flowing straight into the next with no gap between them.</string>
+    <string name="month_style_split">Split</string>
+    <string name="month_style_split_summary">A compact grid marks the days that have events, and the day you tap is listed underneath.</string>
+    <string name="month_split_no_events">Nothing scheduled</string>
+    <string name="month_split_expand">Show the whole month</string>
+    <string name="month_split_collapse">Show the day\'s events</string>
     <string name="settings_quick_switch_header">Quick-switch button</string>
     <string name="settings_quick_switch_hint">Choose which views the top-right button cycles through, and drag to reorder them. Turned-off views stay reachable from the navigation menu.</string>
     <string name="settings_drawer_order_header">Navigation menu</string>
@@ -363,7 +425,7 @@
     <string name="settings_translate_hint">Add or improve a language on Weblate</string>
     <!-- Hub category subtitles -->
     <string name="settings_appearance_subtitle">Theme, default view, week start</string>
-    <string name="settings_views_subtitle">Quick-switch button and menu order</string>
+    <string name="settings_views_subtitle">Month layout, quick-switch button, menu order</string>
     <string name="settings_event_form_subtitle">Default fields for new events</string>
     <string name="settings_notifications_subtitle">Event reminders</string>
     <string name="settings_special_dates_subtitle">Contact birthdays &amp; anniversaries</string>

app/src/main/res/xml/locales_config.xml

@@ -11,6 +11,8 @@
     <locale android:name="en" />
     <locale android:name="de" />
     <locale android:name="es" />
+    <locale android:name="fr" />
     <locale android:name="it" />
+    <locale android:name="pl" />
     <locale android:name="zh-CN" />
 </locale-config>

app/src/test/java/de/jeanlucmakiola/calendula/data/appname/LauncherNameManagerTest.kt

@@ -0,0 +1,51 @@
+package de.jeanlucmakiola.calendula.data.appname
+
+import android.content.pm.PackageManager
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+
+/**
+ * Pure decision logic behind the app-name toggle (issue #44). The framework seam
+ * ([LauncherNameManager.set]/[current], which call `PackageManager`) is covered
+ * on-device; these tests pin the read interpretation and the write ordering.
+ */
+class LauncherNameManagerTest {
+
+    @Test
+    fun `enabled calendar alias reads as CALENDAR`() {
+        assertThat(launcherNameFor(PackageManager.COMPONENT_ENABLED_STATE_ENABLED))
+            .isEqualTo(LauncherName.CALENDAR)
+    }
+
+    @Test
+    fun `default and disabled calendar alias read as CALENDULA`() {
+        assertThat(launcherNameFor(PackageManager.COMPONENT_ENABLED_STATE_DEFAULT))
+            .isEqualTo(LauncherName.CALENDULA)
+        assertThat(launcherNameFor(PackageManager.COMPONENT_ENABLED_STATE_DISABLED))
+            .isEqualTo(LauncherName.CALENDULA)
+    }
+
+    @Test
+    fun `write plan enables the target alias before disabling the other`() {
+        val toCalendar = aliasWritePlan(LauncherName.CALENDAR)
+        assertThat(toCalendar).containsExactly(
+            AliasStateChange(LauncherAlias.CALENDAR, enabled = true),
+            AliasStateChange(LauncherAlias.DEFAULT, enabled = false),
+        ).inOrder()
+
+        val toCalendula = aliasWritePlan(LauncherName.CALENDULA)
+        assertThat(toCalendula).containsExactly(
+            AliasStateChange(LauncherAlias.DEFAULT, enabled = true),
+            AliasStateChange(LauncherAlias.CALENDAR, enabled = false),
+        ).inOrder()
+    }
+
+    @Test
+    fun `write plan never disables both aliases in the same step`() {
+        // The first step is always an enable, so the launcher can never observe a
+        // zero-entry transient regardless of switch direction.
+        for (target in LauncherName.entries) {
+            assertThat(aliasWritePlan(target).first().enabled).isTrue()
+        }
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/data/calendar/CalendarRepositoryImplTest.kt

@@ -312,6 +312,46 @@ class CalendarRepositoryImplTest {
         assertThat(fake.updatedEvents).containsExactly(Triple(42L, original, updated))
     }
 
+    @Test
+    fun `moveEvent forwards id, target calendar and both forms`(@TempDir tempDir: Path) = runTest {
+        val fake = FakeCalendarDataSource().apply { nextInsertId = 77L }
+        val repo = CalendarRepositoryImpl(fake, newPrefs(tempDir), newSettings(tempDir), Dispatchers.Unconfined)
+        val original = EventForm(
+            calendarId = 1L,
+            title = "Stand-up",
+            start = LocalDateTime(LocalDate(2026, 6, 12), LocalTime(9, 0)),
+            end = LocalDateTime(LocalDate(2026, 6, 12), LocalTime(9, 15)),
+        )
+        val updated = original.copy(calendarId = 3L)
+
+        val newId = repo.moveEvent(eventId = 42L, targetCalendarId = 3L, original = original, updated = updated)
+
+        assertThat(newId).isEqualTo(77L)
+        assertThat(fake.movedEvents).containsExactly(
+            FakeCalendarDataSource.MovedEvent(42L, 3L, original, updated),
+        )
+    }
+
+    @Test
+    fun `moveEvent propagates write failures`(@TempDir tempDir: Path) = runTest {
+        val fake = FakeCalendarDataSource().apply {
+            writeError = WriteFailedException("insert moved event into calendar id=3")
+        }
+        val repo = CalendarRepositoryImpl(fake, newPrefs(tempDir), newSettings(tempDir), Dispatchers.Unconfined)
+        val form = EventForm(
+            calendarId = 1L,
+            start = LocalDateTime(LocalDate(2026, 6, 12), LocalTime(9, 0)),
+            end = LocalDateTime(LocalDate(2026, 6, 12), LocalTime(10, 0)),
+        )
+
+        try {
+            repo.moveEvent(eventId = 42L, targetCalendarId = 3L, original = form, updated = form.copy(calendarId = 3L))
+            error("Expected WriteFailedException")
+        } catch (expected: WriteFailedException) {
+            assertThat(expected.message).contains("3")
+        }
+    }
+
     @Test
     fun `updateEvent propagates write failures`(@TempDir tempDir: Path) = runTest {
         val fake = FakeCalendarDataSource().apply {

app/src/test/java/de/jeanlucmakiola/calendula/data/calendar/EventDetailMapperTest.kt

@@ -32,6 +32,7 @@ class EventDetailMapperTest {
         accessLevel: Any? = null,
         timezone: String? = null,
         selfStatus: Any? = null,
+        duration: String? = null,
     ): MapColumnReader = MapColumnReader(
         EventDetailProjection.IDX_EVENT_ID to eventId,
         EventDetailProjection.IDX_TITLE to title,
@@ -51,6 +52,7 @@ class EventDetailMapperTest {
         EventDetailProjection.IDX_EVENT_TIMEZONE to timezone,
         EventDetailProjection.IDX_SELF_ATTENDEE_STATUS to selfStatus,
         EventDetailProjection.IDX_EVENT_COLOR_KEY to eventColorKey,
+        EventDetailProjection.IDX_DURATION to duration,
     )
 
     private fun attendeeReader(
@@ -134,12 +136,32 @@ class EventDetailMapperTest {
     fun `pre-1970 negative dtstart is kept, not dropped (issue #34)`() {
         // A yearly birthday/anniversary anchored before the epoch has a
         // legitimately negative UTC epoch-millis DTSTART; recurring rows carry
-        // no DTEND (they use DURATION), so it stays end == begin.
+        // no DTEND (they use DURATION), so the length comes from DURATION.
         val begin = -157_766_400_000L // 1965-01-01T00:00:00Z
-        val detail = detailReader(dtstart = begin, dtend = null).toDetail()
+        val detail = detailReader(dtstart = begin, dtend = null, duration = "P1D").toDetail()
         assertThat(detail).isNotNull()
         assertThat(detail!!.instance.start.toEpochMilliseconds()).isEqualTo(begin)
-        assertThat(detail.instance.end.toEpochMilliseconds()).isEqualTo(begin)
+        assertThat(detail.instance.end.toEpochMilliseconds()).isEqualTo(begin + 86_400_000L)
+    }
+
+    @Test
+    fun `absent dtend takes its length from DURATION (issue #48)`() {
+        // A recurring series row has no DTEND. Opened without a named
+        // occurrence — a bare content://…/events/<id> VIEW intent — the row's
+        // own times are what render, so DURATION has to supply the length or
+        // the event shows as zero-length (10:00–10:00).
+        val begin = 1_000_000_000L
+        val detail = detailReader(dtstart = begin, dtend = null, duration = "PT1H").toDetail()
+        assertThat(detail).isNotNull()
+        assertThat(detail!!.instance.end.toEpochMilliseconds()).isEqualTo(begin + 3_600_000L)
+    }
+
+    @Test
+    fun `absent dtend and absent DURATION stays zero-length`() {
+        val begin = 1_000_000_000L
+        val detail = detailReader(dtstart = begin, dtend = null, duration = null).toDetail()
+        assertThat(detail).isNotNull()
+        assertThat(detail!!.instance.end.toEpochMilliseconds()).isEqualTo(begin)
     }
 
     @Test

app/src/test/java/de/jeanlucmakiola/calendula/data/calendar/EventWriteMapperTest.kt

@@ -19,7 +19,14 @@ class EventWriteMapperTest {
         isAllDay: Boolean = false,
         start: LocalDateTime = LocalDateTime(LocalDate(2026, 6, 11), LocalTime(10, 0)),
         end: LocalDateTime = LocalDateTime(LocalDate(2026, 6, 11), LocalTime(11, 30)),
-    ): EventForm = EventForm(calendarId = 1L, isAllDay = isAllDay, start = start, end = end)
+        timezone: String? = null,
+    ): EventForm = EventForm(
+        calendarId = 1L,
+        isAllDay = isAllDay,
+        start = start,
+        end = end,
+        timezone = timezone,
+    )
 
     @Test
     fun `timed event resolves wall clock in the given zone`() {
@@ -30,6 +37,26 @@ class EventWriteMapperTest {
         assertThat(times.timezone).isEqualTo("Europe/Berlin")
     }
 
+    @Test
+    fun `pinned zone wins over the device zone`() {
+        val times = form(timezone = "America/New_York").toWriteTimes(berlin)
+        // 10:00 in New York (EDT, UTC-4) == 14:00Z, not 08:00Z as Berlin would give.
+        assertThat(times.timezone).isEqualTo("America/New_York")
+        assertThat(times.dtStartMillis).isEqualTo(1_781_186_400_000L)
+    }
+
+    @Test
+    fun `an unparseable pinned zone falls back to the device zone`() {
+        val times = form(timezone = "Mars/Olympus_Mons").toWriteTimes(berlin)
+        assertThat(times.timezone).isEqualTo("Europe/Berlin")
+    }
+
+    @Test
+    fun `all-day ignores a pinned zone and stays UTC`() {
+        val times = form(isAllDay = true, timezone = "America/New_York").toWriteTimes(berlin)
+        assertThat(times.timezone).isEqualTo("UTC")
+    }
+
     @Test
     fun `all-day event lives at UTC midnights with exclusive end`() {
         val times = form(isAllDay = true).toWriteTimes(berlin)
@@ -96,8 +123,18 @@ class EventWriteMapperTest {
 
     private val seriesStart = 1_700_000_000_000L
 
-    private fun update(original: EventForm, updated: EventForm): Map<String, Any?> =
-        buildEventUpdateValues(original, updated, seriesStart, berlin)
+    private fun update(
+        original: EventForm,
+        updated: EventForm,
+        series: Long = seriesStart,
+    ): Map<String, Any?> = buildEventUpdateValues(original, updated, series, berlin)
+
+    /** The instant [local] names in [zoneId], as the provider would store it. */
+    private fun instantAt(local: String, zoneId: String): Long =
+        java.time.LocalDateTime.parse(local)
+            .atZone(java.time.ZoneId.of(zoneId))
+            .toInstant()
+            .toEpochMilli()
 
     @Test
     fun `pristine form produces no values`() {
@@ -105,6 +142,42 @@ class EventWriteMapperTest {
         assertThat(update(original, original.copy())).isEmpty()
     }
 
+    @Test
+    fun `editing the time of a pinned event keeps its zone`() {
+        // The regression this guards: the update used to stamp the device zone
+        // over the event's own, silently un-anchoring a foreign-zone event so it
+        // stopped tracking that zone across DST.
+        val original = form(timezone = "America/New_York")
+        val values = update(original, original.copy(title = "Standup", start = original.start))
+        assertThat(values).doesNotContainKey(CalendarContract.Events.EVENT_TIMEZONE)
+
+        val moved = original.copy(
+            start = LocalDateTime(LocalDate(2026, 6, 11), LocalTime(11, 0)),
+            end = LocalDateTime(LocalDate(2026, 6, 11), LocalTime(12, 30)),
+        )
+        assertThat(update(original, moved)[CalendarContract.Events.EVENT_TIMEZONE])
+            .isEqualTo("America/New_York")
+    }
+
+    @Test
+    fun `changing only the zone still moves the event`() {
+        // Same wall-clock, different zone: the instant moves, so DTSTART must be
+        // rewritten even though start/end compare equal.
+        val original = form()
+        val values = update(original, original.copy(timezone = "America/New_York"))
+        assertThat(values[CalendarContract.Events.EVENT_TIMEZONE]).isEqualTo("America/New_York")
+        // 10:00 Berlin (08:00Z) -> 10:00 New York (14:00Z): six hours later.
+        assertThat(values[CalendarContract.Events.DTSTART]).isEqualTo(1_781_186_400_000L)
+    }
+
+    @Test
+    fun `unpinning back to the device zone rewrites the times`() {
+        val original = form(timezone = "America/New_York")
+        val values = update(original, original.copy(timezone = null))
+        assertThat(values[CalendarContract.Events.EVENT_TIMEZONE]).isEqualTo("Europe/Berlin")
+        assertThat(values[CalendarContract.Events.DTSTART]).isEqualTo(1_781_164_800_000L)
+    }
+
     @Test
     fun `text-only edit writes just the changed columns`() {
         val original = form()
@@ -156,6 +229,77 @@ class EventWriteMapperTest {
         assertThat(values[CalendarContract.Events.DURATION]).isEqualTo("P5400S")
     }
 
+    @Test
+    fun `pinning a recurring event to another zone keeps the series wall clock`() {
+        // The regression this guards: the series DTSTART used to move by a
+        // millisecond delta measured at the *edited occurrence*. Here the series
+        // anchor sits in January (Berlin CET, +1) and the edited occurrence in
+        // July (Berlin CEST, +2), so the July delta is an hour off for January —
+        // the whole series would have drifted to 10:00 Tokyo.
+        val series = instantAt("2026-01-07T09:00", "Europe/Berlin")
+        val original = form(
+            start = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(9, 0)),
+            end = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(10, 0)),
+        ).copy(rrule = "FREQ=WEEKLY")
+
+        val values = update(original, original.copy(timezone = "Asia/Tokyo"), series)
+
+        assertThat(values[CalendarContract.Events.EVENT_TIMEZONE]).isEqualTo("Asia/Tokyo")
+        // The anchor still reads 09:00 — now 09:00 in Tokyo, not 10:00.
+        assertThat(values[CalendarContract.Events.DTSTART])
+            .isEqualTo(instantAt("2026-01-07T09:00", "Asia/Tokyo"))
+    }
+
+    @Test
+    fun `a time edit moves the series anchor in wall clock across a DST boundary`() {
+        // Anchor in winter, edited occurrence in summer: pushing the occurrence
+        // one hour later must leave the anchor at 10:00 winter time, not at an
+        // instant that re-reads as 11:00 once the offset differs.
+        val series = instantAt("2026-01-07T09:00", "Europe/Berlin")
+        val original = form(
+            start = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(9, 0)),
+            end = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(10, 0)),
+        ).copy(rrule = "FREQ=WEEKLY")
+        val moved = original.copy(
+            start = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(10, 0)),
+            end = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(11, 0)),
+        )
+
+        assertThat(update(original, moved, series)[CalendarContract.Events.DTSTART])
+            .isEqualTo(instantAt("2026-01-07T10:00", "Europe/Berlin"))
+    }
+
+    @Test
+    fun `moving a recurring occurrence to another day shifts the anchor by whole days`() {
+        val series = instantAt("2026-01-07T09:00", "Europe/Berlin")
+        val original = form(
+            start = LocalDateTime(LocalDate(2026, 1, 7), LocalTime(9, 0)),
+            end = LocalDateTime(LocalDate(2026, 1, 7), LocalTime(10, 0)),
+        ).copy(rrule = "FREQ=WEEKLY")
+        val moved = original.copy(
+            start = LocalDateTime(LocalDate(2026, 1, 9), LocalTime(14, 30)),
+            end = LocalDateTime(LocalDate(2026, 1, 9), LocalTime(15, 30)),
+        )
+
+        assertThat(update(original, moved, series)[CalendarContract.Events.DTSTART])
+            .isEqualTo(instantAt("2026-01-09T14:30", "Europe/Berlin"))
+    }
+
+    @Test
+    fun `switching a recurring event to all-day anchors the series on a UTC midnight`() {
+        val series = instantAt("2026-01-07T09:00", "Europe/Berlin")
+        val original = form(
+            start = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(9, 0)),
+            end = LocalDateTime(LocalDate(2026, 7, 15), LocalTime(10, 0)),
+        ).copy(rrule = "FREQ=WEEKLY")
+
+        val values = update(original, original.copy(isAllDay = true), series)
+
+        assertThat(values[CalendarContract.Events.EVENT_TIMEZONE]).isEqualTo("UTC")
+        val dtStart = values[CalendarContract.Events.DTSTART] as Long
+        assertThat(dtStart % (24L * 60 * 60 * 1000)).isEqualTo(0L)
+    }
+
     @Test
     fun `adding a recurrence keeps the times and writes rule plus duration`() {
         val original = form()
@@ -220,6 +364,117 @@ class EventWriteMapperTest {
         assertThat(values).containsEntry(CalendarContract.Events.DESCRIPTION, null)
     }
 
+    // --- buildOccurrenceCancelValues ("delete only this event") ---
+
+    @Test
+    fun `occurrence cancel anchors a single instance and cancels only it`() {
+        val values = buildOccurrenceCancelValues(
+            originalInstanceMillis = 1_700_000_000_000L,
+            dtStartMillis = 1_700_000_000_000L,
+            duration = "P3600S",
+            timezone = "Europe/Berlin",
+            allDay = 0,
+        )
+        assertThat(values[CalendarContract.Events.ORIGINAL_INSTANCE_TIME])
+            .isEqualTo(1_700_000_000_000L)
+        // DTSTART + DURATION make the provider derive a single instance and drop
+        // the inherited RRULE, so only this occurrence is cancelled — not the
+        // whole series (#47). DTEND is never sent (the provider rejects it).
+        assertThat(values[CalendarContract.Events.DTSTART]).isEqualTo(1_700_000_000_000L)
+        assertThat(values[CalendarContract.Events.DURATION]).isEqualTo("P3600S")
+        assertThat(values[CalendarContract.Events.EVENT_TIMEZONE]).isEqualTo("Europe/Berlin")
+        assertThat(values[CalendarContract.Events.STATUS])
+            .isEqualTo(CalendarContract.Events.STATUS_CANCELED)
+        assertThat(values).doesNotContainKey(CalendarContract.Events.DTEND)
+        assertThat(values).doesNotContainKey(CalendarContract.Events.RRULE)
+    }
+
+    @Test
+    fun `all-day occurrence cancel keeps the all-day flag and utc zone`() {
+        val values = buildOccurrenceCancelValues(
+            originalInstanceMillis = 1_700_000_000_000L,
+            dtStartMillis = 1_700_000_000_000L,
+            duration = "P1D",
+            timezone = "UTC",
+            allDay = 1,
+        )
+        assertThat(values[CalendarContract.Events.ALL_DAY]).isEqualTo(1)
+        assertThat(values[CalendarContract.Events.EVENT_TIMEZONE]).isEqualTo("UTC")
+        assertThat(values[CalendarContract.Events.STATUS])
+            .isEqualTo(CalendarContract.Events.STATUS_CANCELED)
+    }
+
+    // --- buildOccurrenceExdateValues ("delete only this event", no _sync_id) ---
+
+    @Test
+    fun `exdate drop excludes the occurrence and rewrites the recurrence set`() {
+        // 2026-07-15T08:00:00Z.
+        val values = buildOccurrenceExdateValues(
+            existingExdate = null,
+            occurrenceMillis = 1_784_102_400_000L,
+            dtStartMillis = 1_783_929_600_000L,
+            rrule = "FREQ=DAILY;COUNT=5",
+            duration = "PT1H",
+            timezone = "Europe/Berlin",
+            allDay = 0,
+        )
+        assertThat(values[CalendarContract.Events.EXDATE]).isEqualTo("20260715T080000Z")
+        // The whole time/recurrence set rides along: an EXDATE-only update is not
+        // treated as a recurrence change, so the provider would leave the expanded
+        // instances (and the occurrence) in place. DTSTART alone is worse — it
+        // makes the provider recompute lastDate as a single instance and collapse
+        // the series to its first occurrence.
+        assertThat(values[CalendarContract.Events.DTSTART]).isEqualTo(1_783_929_600_000L)
+        assertThat(values[CalendarContract.Events.RRULE]).isEqualTo("FREQ=DAILY;COUNT=5")
+        assertThat(values[CalendarContract.Events.DURATION]).isEqualTo("PT1H")
+        assertThat(values[CalendarContract.Events.EVENT_TIMEZONE]).isEqualTo("Europe/Berlin")
+    }
+
+    @Test
+    fun `exdate drop appends to an existing exdate list`() {
+        val values = buildOccurrenceExdateValues(
+            existingExdate = "20260714T080000Z",
+            occurrenceMillis = 1_784_102_400_000L,
+            dtStartMillis = 1_783_929_600_000L,
+            rrule = "FREQ=DAILY;COUNT=5",
+            duration = "PT1H",
+            timezone = "Europe/Berlin",
+            allDay = 0,
+        )
+        assertThat(values[CalendarContract.Events.EXDATE])
+            .isEqualTo("20260714T080000Z,20260715T080000Z")
+    }
+
+    @Test
+    fun `exdate drop folds away a repeated occurrence`() {
+        val values = buildOccurrenceExdateValues(
+            existingExdate = "20260715T080000Z",
+            occurrenceMillis = 1_784_102_400_000L,
+            dtStartMillis = 1_783_929_600_000L,
+            rrule = "FREQ=DAILY;COUNT=5",
+            duration = "PT1H",
+            timezone = "Europe/Berlin",
+            allDay = 0,
+        )
+        assertThat(values[CalendarContract.Events.EXDATE]).isEqualTo("20260715T080000Z")
+    }
+
+    @Test
+    fun `all-day exdate drop uses the date-only form`() {
+        // An all-day DTSTART sits at UTC midnight, so the date reads off UTC.
+        val values = buildOccurrenceExdateValues(
+            existingExdate = null,
+            occurrenceMillis = 1_784_073_600_000L, // 2026-07-15T00:00:00Z
+            dtStartMillis = 1_783_900_800_000L,
+            rrule = "FREQ=YEARLY",
+            duration = "P1D",
+            timezone = "UTC",
+            allDay = 1,
+        )
+        assertThat(values[CalendarContract.Events.EXDATE]).isEqualTo("20260715")
+        assertThat(values[CalendarContract.Events.ALL_DAY]).isEqualTo(1)
+    }
+
     // --- per-event colour ---
 
     @Test
@@ -298,4 +553,114 @@ class EventWriteMapperTest {
         assertThat(values).containsEntry(CalendarContract.Events.EVENT_COLOR, null)
         assertThat(values).containsEntry(CalendarContract.Events.EVENT_COLOR_KEY, null)
     }
+
+    // --- buildMovedMasterValues (calendar move: verbatim series copy) ---
+
+    private fun masterSnapshot(
+        isAllDay: Boolean = false,
+        dtStartMillis: Long = 1_781_164_800_000L,
+        dtEndMillis: Long? = 1_781_164_800_000L + 5_400_000L,
+        duration: String? = null,
+        rrule: String? = null,
+        rdate: String? = null,
+        exdate: String? = null,
+    ) = MasterEventSnapshot(
+        title = "Standup",
+        isAllDay = isAllDay,
+        dtStartMillis = dtStartMillis,
+        dtEndMillis = dtEndMillis,
+        duration = duration,
+        rrule = rrule,
+        rdate = rdate,
+        exdate = exdate,
+        timezone = "Europe/Berlin",
+        availability = CalendarContract.Events.AVAILABILITY_BUSY,
+        accessLevel = CalendarContract.Events.ACCESS_DEFAULT,
+        status = CalendarContract.Events.STATUS_CONFIRMED,
+        location = "Room 1",
+        description = "",
+    )
+
+    @Test
+    fun `moved one-off carries target calendar, uid and DTEND but no recurrence`() {
+        val values = buildMovedMasterValues(masterSnapshot(), targetCalendarId = 9L, uid = "u@calendula")
+        assertThat(values[CalendarContract.Events.CALENDAR_ID]).isEqualTo(9L)
+        assertThat(values[CalendarContract.Events.UID_2445]).isEqualTo("u@calendula")
+        assertThat(values[CalendarContract.Events.DTSTART]).isEqualTo(1_781_164_800_000L)
+        assertThat(values[CalendarContract.Events.DTEND]).isEqualTo(1_781_164_800_000L + 5_400_000L)
+        assertThat(values).doesNotContainKey(CalendarContract.Events.RRULE)
+        assertThat(values).doesNotContainKey(CalendarContract.Events.DURATION)
+        // Empty description clears explicitly; a raw/keyed colour is never copied
+        // (may be invalid on the target account — the copy inherits its colour).
+        assertThat(values).containsEntry(CalendarContract.Events.DESCRIPTION, null)
+        assertThat(values).doesNotContainKey(CalendarContract.Events.EVENT_COLOR)
+        assertThat(values).doesNotContainKey(CalendarContract.Events.EVENT_COLOR_KEY)
+    }
+
+    @Test
+    fun `moved series preserves the recurrence skeleton as RRULE plus DURATION`() {
+        val values = buildMovedMasterValues(
+            masterSnapshot(dtEndMillis = null, duration = "P5400S", rrule = "FREQ=WEEKLY", exdate = "20260618T080000Z"),
+            targetCalendarId = 9L,
+            uid = "u@calendula",
+        )
+        assertThat(values[CalendarContract.Events.RRULE]).isEqualTo("FREQ=WEEKLY")
+        assertThat(values[CalendarContract.Events.DURATION]).isEqualTo("P5400S")
+        assertThat(values[CalendarContract.Events.EXDATE]).isEqualTo("20260618T080000Z")
+        // Recurring rows never carry DTEND (the provider's invariant).
+        assertThat(values).doesNotContainKey(CalendarContract.Events.DTEND)
+    }
+
+    @Test
+    fun `moved series without a stored duration derives it from DTEND`() {
+        val values = buildMovedMasterValues(
+            masterSnapshot(duration = null, rrule = "FREQ=DAILY"),
+            targetCalendarId = 9L,
+            uid = "u@calendula",
+        )
+        assertThat(values[CalendarContract.Events.DURATION]).isEqualTo("P5400S")
+    }
+
+    // --- buildCopiedExceptionValues (calendar move: exception replay) ---
+
+    private fun exceptionSnapshot(
+        isCancelled: Boolean = false,
+        duration: String? = null,
+        // Occurrence starts one hour into the day and runs 30 minutes.
+        dtEndMillis: Long? = 1_781_164_800_000L + 3_600_000L + 1_800_000L,
+    ) = ExceptionRowSnapshot(
+        exceptionEventId = 42L,
+        originalInstanceMillis = 1_781_164_800_000L,
+        isCancelled = isCancelled,
+        status = if (isCancelled) CalendarContract.Events.STATUS_CANCELED else CalendarContract.Events.STATUS_CONFIRMED,
+        title = "Moved occurrence",
+        isAllDay = false,
+        dtStartMillis = 1_781_164_800_000L + 3_600_000L,
+        dtEndMillis = dtEndMillis,
+        duration = duration,
+        timezone = "Europe/Berlin",
+        availability = CalendarContract.Events.AVAILABILITY_BUSY,
+        accessLevel = CalendarContract.Events.ACCESS_DEFAULT,
+        location = "",
+        description = "Notes",
+    )
+
+    @Test
+    fun `copied modified occurrence carries the original instance and DURATION not DTEND`() {
+        val values = buildCopiedExceptionValues(exceptionSnapshot())
+        assertThat(values[CalendarContract.Events.ORIGINAL_INSTANCE_TIME])
+            .isEqualTo(1_781_164_800_000L)
+        assertThat(values[CalendarContract.Events.TITLE]).isEqualTo("Moved occurrence")
+        assertThat(values[CalendarContract.Events.DTSTART]).isEqualTo(1_781_164_800_000L + 3_600_000L)
+        // 30-minute occurrence derived from DTEND, written as DURATION only.
+        assertThat(values[CalendarContract.Events.DURATION]).isEqualTo("P1800S")
+        assertThat(values).doesNotContainKey(CalendarContract.Events.DTEND)
+        assertThat(values).containsEntry(CalendarContract.Events.EVENT_LOCATION, null)
+    }
+
+    @Test
+    fun `copied modified occurrence keeps a stored duration verbatim`() {
+        val values = buildCopiedExceptionValues(exceptionSnapshot(duration = "P900S", dtEndMillis = null))
+        assertThat(values[CalendarContract.Events.DURATION]).isEqualTo("P900S")
+    }
 }

app/src/test/java/de/jeanlucmakiola/calendula/data/calendar/FakeCalendarDataSource.kt

@@ -34,6 +34,13 @@ internal class FakeCalendarDataSource : CalendarDataSource {
 
     val insertedForms = mutableListOf<EventForm>()
     val updatedEvents = mutableListOf<Triple<Long, EventForm, EventForm>>()
+    data class MovedEvent(
+        val eventId: Long,
+        val targetCalendarId: Long,
+        val original: EventForm,
+        val updated: EventForm,
+    )
+    val movedEvents = mutableListOf<MovedEvent>()
     val updatedOccurrences = mutableListOf<Triple<Long, Long, EventForm>>()
     val updatedFromOccurrences = mutableListOf<Triple<Long, Long, EventForm>>()
     val deletedEventIds = mutableListOf<Long>()
@@ -116,6 +123,19 @@ internal class FakeCalendarDataSource : CalendarDataSource {
         allDayReminderTimes += allDayReminderTimeMinutes
     }
 
+    override fun moveEvent(
+        eventId: Long,
+        targetCalendarId: Long,
+        original: EventForm,
+        updated: EventForm,
+        allDayReminderTimeMinutes: Int,
+    ): Long {
+        writeError?.let { throw it }
+        movedEvents += MovedEvent(eventId, targetCalendarId, original, updated)
+        allDayReminderTimes += allDayReminderTimeMinutes
+        return nextInsertId
+    }
+
     override fun updateOccurrence(
         eventId: Long,
         beginMillis: Long,

app/src/test/java/de/jeanlucmakiola/calendula/data/prefs/SettingsPrefsTest.kt

@@ -13,6 +13,7 @@ import de.jeanlucmakiola.calendula.ui.agenda.AgendaRange
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
 import de.jeanlucmakiola.calendula.ui.common.QuickSwitchConfig
+import de.jeanlucmakiola.calendula.ui.month.MonthViewStyle
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.test.runTest
 import kotlinx.datetime.DayOfWeek
@@ -125,6 +126,30 @@ class SettingsPrefsTest {
         assertThat(prefs.agendaWidgetRange.first()).isEqualTo(AgendaRange.Week)
     }
 
+    @Test
+    fun `month view style defaults to paged and round-trips`(@TempDir tempDir: Path) = runTest {
+        val prefs = SettingsPrefs(newDataStore(tempDir))
+        assertThat(prefs.monthViewStyle.first()).isEqualTo(MonthViewStyle.Paged)
+
+        prefs.setMonthViewStyle(MonthViewStyle.Split)
+        assertThat(prefs.monthViewStyle.first()).isEqualTo(MonthViewStyle.Split)
+
+        prefs.setMonthViewStyle(MonthViewStyle.Continuous)
+        assertThat(prefs.monthViewStyle.first()).isEqualTo(MonthViewStyle.Continuous)
+    }
+
+    @Test
+    fun `garbage stored month view style falls back to paged`(@TempDir tempDir: Path) = runTest {
+        val store = newDataStore(tempDir)
+        val prefs = SettingsPrefs(store)
+        store.updateData { p ->
+            val m = p.toMutablePreferences()
+            m[SettingsPrefs.MONTH_VIEW_STYLE_KEY] = "Carousel"
+            m
+        }
+        assertThat(prefs.monthViewStyle.first()).isEqualTo(MonthViewStyle.Paged)
+    }
+
     @Test
     fun `garbage stored enum falls back to default`(@TempDir tempDir: Path) = runTest {
         val store = newDataStore(tempDir)

app/src/test/java/de/jeanlucmakiola/calendula/data/reminders/ReminderTimeTextTest.kt

@@ -2,6 +2,7 @@ package de.jeanlucmakiola.calendula.data.reminders
 
 import com.google.common.truth.Truth.assertThat
 import org.junit.jupiter.api.Test
+import java.time.DayOfWeek
 import java.time.LocalDate
 import java.time.LocalDateTime
 import java.time.ZoneId
@@ -18,41 +19,110 @@ class ReminderTimeTextTest {
     private fun utcMidnight(date: LocalDate): Long =
         date.atStartOfDay(ZoneOffset.UTC).toInstant().toEpochMilli()
 
+    /** Wrapper defaulting `today` to the event's own begin day, so unrelated tests read "today". */
+    private fun text(
+        beginMillis: Long,
+        endMillis: Long,
+        isAllDay: Boolean = false,
+        zone: ZoneId = berlin,
+        locale: Locale = Locale.GERMANY,
+        is24Hour: Boolean = true,
+        today: LocalDate? = null,
+        firstDayOfWeek: DayOfWeek = DayOfWeek.MONDAY,
+    ): String = reminderTimeText(
+        beginMillis = beginMillis,
+        endMillis = endMillis,
+        isAllDay = isAllDay,
+        zone = zone,
+        locale = locale,
+        is24Hour = is24Hour,
+        today = today ?: java.time.Instant.ofEpochMilli(beginMillis).atZone(zone).toLocalDate(),
+        firstDayOfWeek = firstDayOfWeek,
+        tomorrowLabel = "Tomorrow",
+        yesterdayLabel = "Yesterday",
+    )
+
     @Test
-    fun `timed event on one day shows just the time range`() {
-        val text = reminderTimeText(
+    fun `timed event today shows just the time range`() {
+        val text = text(
             beginMillis = millisAt(LocalDateTime.of(2026, 6, 11, 9, 30), berlin),
             endMillis = millisAt(LocalDateTime.of(2026, 6, 11, 10, 0), berlin),
-            isAllDay = false,
-            zone = berlin,
-            locale = Locale.GERMANY,
-            is24Hour = true,
         )
         assertThat(text).isEqualTo("09:30 – 10:00")
     }
 
     @Test
     fun `12-hour preference renders an am-pm time range`() {
-        val text = reminderTimeText(
+        val text = text(
             beginMillis = millisAt(LocalDateTime.of(2026, 6, 11, 14, 0), berlin),
             endMillis = millisAt(LocalDateTime.of(2026, 6, 11, 15, 0), berlin),
-            isAllDay = false,
-            zone = berlin,
             locale = Locale.US,
             is24Hour = false,
         )
         assertThat(text).isEqualTo("2:00 PM – 3:00 PM")
     }
 
+    @Test
+    fun `tomorrow's event is prefixed with the tomorrow label`() {
+        val text = text(
+            beginMillis = millisAt(LocalDateTime.of(2026, 6, 12, 9, 30), berlin),
+            endMillis = millisAt(LocalDateTime.of(2026, 6, 12, 10, 0), berlin),
+            today = LocalDate.of(2026, 6, 11),
+        )
+        assertThat(text).isEqualTo("Tomorrow, 09:30 – 10:00")
+    }
+
+    @Test
+    fun `yesterday's event is prefixed with the yesterday label`() {
+        val text = text(
+            beginMillis = millisAt(LocalDateTime.of(2026, 6, 10, 9, 30), berlin),
+            endMillis = millisAt(LocalDateTime.of(2026, 6, 10, 10, 0), berlin),
+            today = LocalDate.of(2026, 6, 11),
+        )
+        assertThat(text).isEqualTo("Yesterday, 09:30 – 10:00")
+    }
+
+    @Test
+    fun `an event later this week is prefixed with the short weekday`() {
+        // 2026-06-11 is a Thursday; +3 days lands on Sunday, still this (Mon-based) week.
+        val text = text(
+            beginMillis = millisAt(LocalDateTime.of(2026, 6, 14, 9, 30), berlin),
+            endMillis = millisAt(LocalDateTime.of(2026, 6, 14, 10, 0), berlin),
+            today = LocalDate.of(2026, 6, 11),
+        )
+        assertThat(text).isEqualTo("So., 09:30 – 10:00")
+    }
+
+    @Test
+    fun `the week boundary honours the week-start setting`() {
+        // Today Thu 2026-06-11, event Sun 2026-06-14. With a Sunday-start week the
+        // Thursday's week runs Sun 06-07..Sat 06-13, so 06-14 is already next week
+        // and must render as a date — the opposite of the Monday-start case above.
+        val text = text(
+            beginMillis = millisAt(LocalDateTime.of(2026, 6, 14, 9, 30), berlin),
+            endMillis = millisAt(LocalDateTime.of(2026, 6, 14, 10, 0), berlin),
+            today = LocalDate.of(2026, 6, 11),
+            firstDayOfWeek = DayOfWeek.SUNDAY,
+        )
+        assertThat(text).isEqualTo("14.06.2026, 09:30 – 10:00")
+    }
+
+    @Test
+    fun `an event next week falls back to the exact date, not a weekday`() {
+        // 2026-06-15 is the following Monday — a weekday alone would be ambiguous.
+        val text = text(
+            beginMillis = millisAt(LocalDateTime.of(2026, 6, 15, 9, 30), berlin),
+            endMillis = millisAt(LocalDateTime.of(2026, 6, 15, 10, 0), berlin),
+            today = LocalDate.of(2026, 6, 11),
+        )
+        assertThat(text).isEqualTo("15.06.2026, 09:30 – 10:00")
+    }
+
     @Test
     fun `timed event crossing midnight includes both dates`() {
-        val text = reminderTimeText(
+        val text = text(
             beginMillis = millisAt(LocalDateTime.of(2026, 6, 11, 23, 30), berlin),
             endMillis = millisAt(LocalDateTime.of(2026, 6, 12, 0, 30), berlin),
-            isAllDay = false,
-            zone = berlin,
-            locale = Locale.GERMANY,
-            is24Hour = true,
         )
         assertThat(text).contains("11.06.2026")
         assertThat(text).contains("12.06.2026")
@@ -61,28 +131,35 @@ class ReminderTimeTextTest {
 
     @Test
     fun `all-day single day shows one date, read in UTC`() {
-        val text = reminderTimeText(
+        val text = text(
             beginMillis = utcMidnight(LocalDate.of(2026, 6, 11)),
             endMillis = utcMidnight(LocalDate.of(2026, 6, 12)),
             isAllDay = true,
             // Zone must not matter for all-day events: UTC midnight is
             // 02:00 in Berlin — naive local reading would shift the day.
-            zone = berlin,
-            locale = Locale.GERMANY,
-            is24Hour = true,
+            today = LocalDate.of(2026, 6, 11),
         )
         assertThat(text).isEqualTo("11.06.2026")
     }
 
+    @Test
+    fun `all-day event tomorrow still shows the exact date, no relative prefix`() {
+        val text = text(
+            beginMillis = utcMidnight(LocalDate.of(2026, 6, 12)),
+            endMillis = utcMidnight(LocalDate.of(2026, 6, 13)),
+            isAllDay = true,
+            today = LocalDate.of(2026, 6, 11),
+        )
+        assertThat(text).isEqualTo("12.06.2026")
+    }
+
     @Test
     fun `all-day multi-day shows the last covered day, not the exclusive end`() {
-        val text = reminderTimeText(
+        val text = text(
             beginMillis = utcMidnight(LocalDate.of(2026, 6, 11)),
             endMillis = utcMidnight(LocalDate.of(2026, 6, 13)),
             isAllDay = true,
-            zone = berlin,
-            locale = Locale.GERMANY,
-            is24Hour = true,
+            today = LocalDate.of(2026, 6, 11),
         )
         assertThat(text).isEqualTo("11.06.2026 – 12.06.2026")
     }
@@ -90,13 +167,11 @@ class ReminderTimeTextTest {
     @Test
     fun `degenerate all-day range never renders an inverted span`() {
         val day = utcMidnight(LocalDate.of(2026, 6, 11))
-        val text = reminderTimeText(
+        val text = text(
             beginMillis = day,
             endMillis = day,
             isAllDay = true,
-            zone = berlin,
-            locale = Locale.GERMANY,
-            is24Hour = true,
+            today = LocalDate.of(2026, 6, 11),
         )
         assertThat(text).isEqualTo("11.06.2026")
     }

app/src/test/java/de/jeanlucmakiola/calendula/domain/EventColorPaletteTest.kt

@@ -0,0 +1,214 @@
+package de.jeanlucmakiola.calendula.domain
+
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+
+class EventColorPaletteTest {
+
+    @Test
+    fun `empty palette stays empty`() {
+        assertThat(emptyList<EventColorOption>().curatedForPicker()).isEmpty()
+    }
+
+    @Test
+    fun `exact duplicate values collapse to the alphabetically first key`() {
+        val curated = listOf(
+            EventColorOption("cyan", 0xFF00FFFF.toInt()),
+            EventColorOption("aqua", 0xFF00FFFF.toInt()),
+            EventColorOption("red", 0xFFFF0000.toInt()),
+        ).curatedForPicker()
+
+        assertThat(curated.map { it.key }).containsExactly("aqua", "red")
+    }
+
+    @Test
+    fun `small palettes pass through whole, so Google's curated set is untouched`() {
+        // A Google-like palette: two dozen distinct hand-picked colours.
+        val palette = (0 until 24).map {
+            val hue = it * 15
+            EventColorOption("$it", hsvArgb(hue.toFloat()))
+        }
+
+        val curated = palette.curatedForPicker()
+
+        assertThat(curated).containsExactlyElementsIn(palette)
+    }
+
+    @Test
+    fun `oversized CSS3 palette thins to a pickable number of distinct swatches`() {
+        val curated = css3Palette().curatedForPicker()
+
+        // The whole point of #22: ~147 published colours become a single
+        // manageable grid instead of a full screen.
+        assertThat(curated.size).isAtLeast(30)
+        assertThat(curated.size).isAtMost(60)
+    }
+
+    @Test
+    fun `curation never invents colours or drops keys`() {
+        val source = css3Palette()
+        val curated = source.curatedForPicker()
+
+        assertThat(source).containsAtLeastElementsIn(curated)
+        assertThat(curated.map { it.argb }).containsNoDuplicates()
+    }
+
+    @Test
+    fun `spelling-alias pairs never both survive`() {
+        val keys = css3Palette().curatedForPicker().map { it.key }.toSet()
+
+        val aliasPairs = listOf(
+            "aqua" to "cyan",
+            "fuchsia" to "magenta",
+            "gray" to "grey",
+            "darkgray" to "darkgrey",
+            "dimgray" to "dimgrey",
+            "lightgray" to "lightgrey",
+            "slategray" to "slategrey",
+            "lightslategray" to "lightslategrey",
+            "darkslategray" to "darkslategrey",
+        )
+        aliasPairs.forEach { (a, b) ->
+            assertThat(keys.contains(a) && keys.contains(b)).isFalse()
+        }
+    }
+
+    @Test
+    fun `neutrals collapse to one painted tint instead of a run of look-alikes`() {
+        // Black and every gray paint as the same pale swatch (the picker pins
+        // lightness and floors saturation), so only one survives — no stranded
+        // run of look-alike "pinks" at the end of the grid (#22).
+        val curated = listOf(
+            EventColorOption("black", 0xFF000000.toInt()),
+            EventColorOption("gray", 0xFF808080.toInt()),
+            EventColorOption("darkgray", 0xFFA9A9A9.toInt()),
+            EventColorOption("blue", 0xFF0000FF.toInt()),
+            EventColorOption("red", 0xFFFF0000.toInt()),
+        ).curatedForPicker().map { it.key }
+
+        assertThat(curated).containsNoneOf("gray", "darkgray") // folded into black
+        assertThat(curated).containsAtLeast("black", "red", "blue")
+    }
+
+    @Test
+    fun `a dark and a light shade of one hue collapse to a single swatch`() {
+        // The picker paints every swatch at one fixed lightness, so navy and a
+        // mid blue are indistinguishable once painted — keep just one.
+        val curated = listOf(
+            EventColorOption("navy", 0xFF000080.toInt()),
+            EventColorOption("blue", 0xFF0000FF.toInt()),
+        ).curatedForPicker()
+
+        assertThat(curated).hasSize(1)
+    }
+
+    @Test
+    fun `the wheel is cut once, keeping each hue family contiguous`() {
+        // Twelve pure hues, deliberately shuffled; a small palette passes the
+        // thinning stage untouched so only the ordering is under test.
+        val shuffledHues = listOf(0, 300, 60, 180, 120, 240, 30, 330, 90, 210, 150, 270)
+        val curated = shuffledHues
+            .map { EventColorOption("$it", hsvArgb(it.toFloat())) }
+            .curatedForPicker()
+            .map { it.key.toInt() }
+
+        // A proper single-seam sweep around the wheel descends exactly once
+        // (at the seam). The old bucketed sort could scatter a family across
+        // both ends, producing extra descents.
+        val descents = curated.indices.count { i ->
+            curated[(i + 1) % curated.size] < curated[i]
+        }
+        assertThat(descents).isEqualTo(1)
+    }
+
+    @Test
+    fun `CSS3 survivors span the whole rainbow`() {
+        val keys = css3Palette().curatedForPicker().map { it.key }
+        fun has(vararg families: String) = keys.any { k -> families.any { k.contains(it) } }
+
+        // Which exact name represents a hue family depends on the vivid-first
+        // thinning, so assert each family survives, not a specific key.
+        assertThat(has("red", "crimson", "firebrick", "tomato", "maroon", "brown")).isTrue()
+        assertThat(has("orange", "gold", "goldenrod", "peru", "sienna", "salmon")).isTrue()
+        assertThat(has("green", "olive", "lime", "chartreuse", "forest", "sea")).isTrue()
+        assertThat(has("blue", "navy", "dodger", "steel", "royal", "sky", "aqua")).isTrue()
+        assertThat(has("violet", "purple", "magenta", "orchid", "fuchsia", "indigo", "plum")).isTrue()
+    }
+
+    private fun hsvArgb(hue: Float): Int {
+        val h = hue / 60f
+        val sector = h.toInt() % 6
+        val f = h - h.toInt()
+        val q = ((1 - f) * 255).toInt()
+        val t = (f * 255).toInt()
+        return when (sector) {
+            0 -> argb(255, t, 0)
+            1 -> argb(q, 255, 0)
+            2 -> argb(0, 255, t)
+            3 -> argb(0, q, 255)
+            4 -> argb(t, 0, 255)
+            else -> argb(255, 0, q)
+        }
+    }
+
+    private fun argb(r: Int, g: Int, b: Int): Int =
+        (0xFF shl 24) or (r shl 16) or (g shl 8) or b
+
+    /** The exact set ical4android/DAVx5 publishes: CSS3's 147 named colours. */
+    private fun css3Palette(): List<EventColorOption> = CSS3.map { (name, rgb) ->
+        EventColorOption(name, 0xFF000000.toInt() or rgb)
+    }
+
+    private val CSS3 = mapOf(
+        "aliceblue" to 0xF0F8FF, "antiquewhite" to 0xFAEBD7, "aqua" to 0x00FFFF,
+        "aquamarine" to 0x7FFFD4, "azure" to 0xF0FFFF, "beige" to 0xF5F5DC,
+        "bisque" to 0xFFE4C4, "black" to 0x000000, "blanchedalmond" to 0xFFEBCD,
+        "blue" to 0x0000FF, "blueviolet" to 0x8A2BE2, "brown" to 0xA52A2A,
+        "burlywood" to 0xDEB887, "cadetblue" to 0x5F9EA0, "chartreuse" to 0x7FFF00,
+        "chocolate" to 0xD2691E, "coral" to 0xFF7F50, "cornflowerblue" to 0x6495ED,
+        "cornsilk" to 0xFFF8DC, "crimson" to 0xDC143C, "cyan" to 0x00FFFF,
+        "darkblue" to 0x00008B, "darkcyan" to 0x008B8B, "darkgoldenrod" to 0xB8860B,
+        "darkgray" to 0xA9A9A9, "darkgreen" to 0x006400, "darkgrey" to 0xA9A9A9,
+        "darkkhaki" to 0xBDB76B, "darkmagenta" to 0x8B008B, "darkolivegreen" to 0x556B2F,
+        "darkorange" to 0xFF8C00, "darkorchid" to 0x9932CC, "darkred" to 0x8B0000,
+        "darksalmon" to 0xE9967A, "darkseagreen" to 0x8FBC8F, "darkslateblue" to 0x483D8B,
+        "darkslategray" to 0x2F4F4F, "darkslategrey" to 0x2F4F4F, "darkturquoise" to 0x00CED1,
+        "darkviolet" to 0x9400D3, "deeppink" to 0xFF1493, "deepskyblue" to 0x00BFFF,
+        "dimgray" to 0x696969, "dimgrey" to 0x696969, "dodgerblue" to 0x1E90FF,
+        "firebrick" to 0xB22222, "floralwhite" to 0xFFFAF0, "forestgreen" to 0x228B22,
+        "fuchsia" to 0xFF00FF, "gainsboro" to 0xDCDCDC, "ghostwhite" to 0xF8F8FF,
+        "gold" to 0xFFD700, "goldenrod" to 0xDAA520, "gray" to 0x808080,
+        "green" to 0x008000, "greenyellow" to 0xADFF2F, "grey" to 0x808080,
+        "honeydew" to 0xF0FFF0, "hotpink" to 0xFF69B4, "indianred" to 0xCD5C5C,
+        "indigo" to 0x4B0082, "ivory" to 0xFFFFF0, "khaki" to 0xF0E68C,
+        "lavender" to 0xE6E6FA, "lavenderblush" to 0xFFF0F5, "lawngreen" to 0x7CFC00,
+        "lemonchiffon" to 0xFFFACD, "lightblue" to 0xADD8E6, "lightcoral" to 0xF08080,
+        "lightcyan" to 0xE0FFFF, "lightgoldenrodyellow" to 0xFAFAD2, "lightgray" to 0xD3D3D3,
+        "lightgreen" to 0x90EE90, "lightgrey" to 0xD3D3D3, "lightpink" to 0xFFB6C1,
+        "lightsalmon" to 0xFFA07A, "lightseagreen" to 0x20B2AA, "lightskyblue" to 0x87CEFA,
+        "lightslategray" to 0x778899, "lightslategrey" to 0x778899, "lightsteelblue" to 0xB0C4DE,
+        "lightyellow" to 0xFFFFE0, "lime" to 0x00FF00, "limegreen" to 0x32CD32,
+        "linen" to 0xFAF0E6, "magenta" to 0xFF00FF, "maroon" to 0x800000,
+        "mediumaquamarine" to 0x66CDAA, "mediumblue" to 0x0000CD, "mediumorchid" to 0xBA55D3,
+        "mediumpurple" to 0x9370DB, "mediumseagreen" to 0x3CB371, "mediumslateblue" to 0x7B68EE,
+        "mediumspringgreen" to 0x00FA9A, "mediumturquoise" to 0x48D1CC,
+        "mediumvioletred" to 0xC71585, "midnightblue" to 0x191970, "mintcream" to 0xF5FFFA,
+        "mistyrose" to 0xFFE4E1, "moccasin" to 0xFFE4B5, "navajowhite" to 0xFFDEAD,
+        "navy" to 0x000080, "oldlace" to 0xFDF5E6, "olive" to 0x808000,
+        "olivedrab" to 0x6B8E23, "orange" to 0xFFA500, "orangered" to 0xFF4500,
+        "orchid" to 0xDA70D6, "palegoldenrod" to 0xEEE8AA, "palegreen" to 0x98FB98,
+        "paleturquoise" to 0xAFEEEE, "palevioletred" to 0xDB7093, "papayawhip" to 0xFFEFD5,
+        "peachpuff" to 0xFFDAB9, "peru" to 0xCD853F, "pink" to 0xFFC0CB,
+        "plum" to 0xDDA0DD, "powderblue" to 0xB0E0E6, "purple" to 0x800080,
+        "red" to 0xFF0000, "rosybrown" to 0xBC8F8F, "royalblue" to 0x4169E1,
+        "saddlebrown" to 0x8B4513, "salmon" to 0xFA8072, "sandybrown" to 0xF4A460,
+        "seagreen" to 0x2E8B57, "seashell" to 0xFFF5EE, "sienna" to 0xA0522D,
+        "silver" to 0xC0C0C0, "skyblue" to 0x87CEEB, "slateblue" to 0x6A5ACD,
+        "slategray" to 0x708090, "slategrey" to 0x708090, "snow" to 0xFFFAFA,
+        "springgreen" to 0x00FF7F, "steelblue" to 0x4682B4, "tan" to 0xD2B48C,
+        "teal" to 0x008080, "thistle" to 0xD8BFD8, "tomato" to 0xFF6347,
+        "turquoise" to 0x40E0D0, "violet" to 0xEE82EE, "wheat" to 0xF5DEB3,
+        "white" to 0xFFFFFF, "whitesmoke" to 0xF5F5F5, "yellow" to 0xFFFF00,
+        "yellowgreen" to 0x9ACD32,
+    )
+}

app/src/test/java/de/jeanlucmakiola/calendula/domain/EventFormTest.kt

@@ -117,6 +117,7 @@ class EventFormTest {
         attendees: List<Attendee> = emptyList(),
         eventColor: Int? = null,
         eventColorKey: String? = null,
+        eventTimezone: String? = null,
     ): EventDetail = EventDetail(
         instance = EventInstance(
             instanceId = 1L,
@@ -138,6 +139,7 @@ class EventFormTest {
         accessLevel = accessLevel,
         eventColor = eventColor,
         eventColorKey = eventColorKey,
+        eventTimezone = eventTimezone,
     )
 
     @Test
@@ -157,6 +159,117 @@ class EventFormTest {
         assertThat(prefilled.description).isEqualTo("Body")
     }
 
+    @Test
+    fun `toEditForm leaves an event in the device zone unpinned`() {
+        val prefilled = detail(eventTimezone = "Europe/Berlin").toEditForm(
+            beginMillis = 1_781_164_800_000L,
+            endMillis = 1_781_164_800_000L + 3_600_000L,
+            zone = berlin,
+        )
+        // Same zone as the device: pinning it would only make the picker appear
+        // on every ordinary event.
+        assertThat(prefilled.timezone).isNull()
+        assertThat(prefilled.populatedFields()).doesNotContain(EventFormField.Timezone)
+    }
+
+    @Test
+    fun `toEditForm pins a foreign zone and shows the times in it`() {
+        val prefilled = detail(eventTimezone = "America/New_York").toEditForm(
+            beginMillis = 1_781_164_800_000L, // 08:00Z
+            endMillis = 1_781_164_800_000L + 3_600_000L,
+            zone = berlin,
+        )
+        assertThat(prefilled.timezone).isEqualTo("America/New_York")
+        // 08:00Z is 10:00 in Berlin but 04:00 in New York — the form shows the
+        // event's own wall-clock, which is what a later save re-anchors to.
+        assertThat(prefilled.start).isEqualTo(LocalDateTime(LocalDate(2026, 6, 11), LocalTime(4, 0)))
+        assertThat(prefilled.populatedFields()).contains(EventFormField.Timezone)
+    }
+
+    @Test
+    fun `toEditForm never pins a zone on an all-day event`() {
+        // All-day rows carry a nominal "UTC" that is an anchor, not a location.
+        val prefilled = detail(isAllDay = true, eventTimezone = "UTC").toEditForm(
+            beginMillis = LocalDate(2026, 6, 11).toEpochDays() * 86_400_000L,
+            endMillis = LocalDate(2026, 6, 12).toEpochDays() * 86_400_000L,
+            zone = berlin,
+        )
+        assertThat(prefilled.timezone).isNull()
+    }
+
+    @Test
+    fun `toEditForm ignores an unparseable stored zone`() {
+        val prefilled = detail(eventTimezone = "Mars/Olympus_Mons").toEditForm(
+            beginMillis = 1_781_164_800_000L,
+            endMillis = 1_781_164_800_000L + 3_600_000L,
+            zone = berlin,
+        )
+        // A malformed sync row must not be honoured, nor fail the open.
+        assertThat(prefilled.timezone).isNull()
+        assertThat(prefilled.start).isEqualTo(LocalDateTime(LocalDate(2026, 6, 11), LocalTime(10, 0)))
+    }
+
+    @Test
+    fun `timesIn converts a pinned event into the target zone`() {
+        val form = EventForm(
+            calendarId = 1L,
+            start = LocalDateTime(LocalDate(2026, 7, 17), LocalTime(8, 0)),
+            end = LocalDateTime(LocalDate(2026, 7, 17), LocalTime(9, 0)),
+            timezone = "America/New_York",
+        )
+        val (start, end) = form.timesIn(berlin)!!
+        // 08:00 New York (EDT, UTC-4) is 14:00 Berlin (CEST, UTC+2).
+        assertThat(start).isEqualTo(LocalDateTime(LocalDate(2026, 7, 17), LocalTime(14, 0)))
+        assertThat(end).isEqualTo(LocalDateTime(LocalDate(2026, 7, 17), LocalTime(15, 0)))
+    }
+
+    @Test
+    fun `timesIn crosses the date line when the offset pushes past midnight`() {
+        val form = EventForm(
+            calendarId = 1L,
+            start = LocalDateTime(LocalDate(2026, 7, 17), LocalTime(20, 0)),
+            end = LocalDateTime(LocalDate(2026, 7, 17), LocalTime(21, 0)),
+            timezone = "America/New_York",
+        )
+        val (start, _) = form.timesIn(berlin)!!
+        // 20:00 New York is 02:00 the NEXT day in Berlin — the date has to move
+        // with it, not just the clock.
+        assertThat(start).isEqualTo(LocalDateTime(LocalDate(2026, 7, 18), LocalTime(2, 0)))
+    }
+
+    @Test
+    fun `timesIn tracks each zone's own DST rather than a fixed offset`() {
+        // In January both are on standard time: 08:00 EST is 14:00 CET — the
+        // same six hours as July, but only because both shifted. Late March,
+        // when the US has sprung forward and Europe hasn't, the gap is five.
+        val march = EventForm(
+            calendarId = 1L,
+            start = LocalDateTime(LocalDate(2026, 3, 20), LocalTime(8, 0)),
+            end = LocalDateTime(LocalDate(2026, 3, 20), LocalTime(9, 0)),
+            timezone = "America/New_York",
+        )
+        assertThat(march.timesIn(berlin)!!.first)
+            .isEqualTo(LocalDateTime(LocalDate(2026, 3, 20), LocalTime(13, 0)))
+    }
+
+    @Test
+    fun `timesIn returns null when there is nothing to disambiguate`() {
+        val base = EventForm(
+            calendarId = 1L,
+            start = LocalDateTime(LocalDate(2026, 7, 17), LocalTime(8, 0)),
+            end = LocalDateTime(LocalDate(2026, 7, 17), LocalTime(9, 0)),
+        )
+        // Unpinned: the form's times already are the local times.
+        assertThat(base.timesIn(berlin)).isNull()
+        // Pinned to the target itself: same thing.
+        assertThat(base.copy(timezone = "Europe/Berlin").timesIn(berlin)).isNull()
+        // All-day: date-anchored, so there's no zone conversion to show.
+        assertThat(base.copy(isAllDay = true, timezone = "America/New_York").timesIn(berlin))
+            .isNull()
+        // Unparseable: can't convert, mustn't throw.
+        assertThat(base.copy(timezone = "Mars/Olympus_Mons").timesIn(berlin)).isNull()
+    }
+
     @Test
     fun `toEditForm turns the exclusive all-day end into the last covered day`() {
         // 11th..13th = UTC midnights of the 11th and the (exclusive) 14th.

app/src/test/java/de/jeanlucmakiola/calendula/domain/TimeZoneCatalogTest.kt

@@ -0,0 +1,159 @@
+package de.jeanlucmakiola.calendula.domain
+
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+import java.time.Instant
+import java.util.Locale
+
+class TimeZoneCatalogTest {
+
+    // A fixed instant so DST-dependent offsets can't drift with the wall clock:
+    // 2026-06-11 is northern summer, i.e. Berlin on CEST and New York on EDT.
+    private val summer: Instant = Instant.parse("2026-06-11T12:00:00Z")
+    private val zones = timeZoneOptions(Locale.ENGLISH, summer)
+
+    private fun filter(query: String) = filterTimeZones(zones, query)
+
+    @Test
+    fun `catalogue holds the real zones and drops the legacy aliases`() {
+        assertThat(zones.map { it.id }).containsAtLeast("Europe/Berlin", "America/New_York")
+        // Bare aliases the tz database keeps for compatibility would double up
+        // the real zones in the picker.
+        assertThat(zones.map { it.id }).containsNoneOf("EST", "CST6CDT", "UTC")
+        assertThat(zones.none { it.id.startsWith("SystemV/") }).isTrue()
+    }
+
+    @Test
+    fun `option exposes city and region split from the id`() {
+        val ny = zones.first { it.id == "America/New_York" }
+        assertThat(ny.city).isEqualTo("New York")
+        assertThat(ny.region).isEqualTo("America")
+    }
+
+    @Test
+    fun `label is the id with underscores undone`() {
+        assertThat(zones.first { it.id == "America/New_York" }.label)
+            .isEqualTo("America/New York")
+        assertThat(zones.first { it.id == "Europe/Berlin" }.label).isEqualTo("Europe/Berlin")
+    }
+
+    @Test
+    fun `resolved abbreviation is compact, not the long name`() {
+        // Whatever CLDR gives ("CET"/"CEST" or a "GMT+.." fallback), it must be
+        // short and space-free — that's the whole point of showing it instead of
+        // "Central European Time".
+        val berlin = zones.first { it.id == "Europe/Berlin" }
+        assertThat(berlin.shortName).doesNotContain(" ")
+        assertThat(berlin.shortName.length).isLessThan(berlin.displayName.length)
+    }
+
+    @Test
+    fun `descriptor pairs a named abbreviation with the offset`() {
+        val option = TimeZoneOption(
+            id = "Europe/Berlin",
+            displayName = "Central European Time",
+            shortName = "CET",
+            offsetMinutes = 60,
+        )
+        assertThat(zoneDescriptor(option)).isEqualTo("CET · GMT+01:00")
+    }
+
+    @Test
+    fun `descriptor drops the offset when the abbreviation already is one`() {
+        // Repeating the offset after an offset-shaped abbreviation would just say
+        // the same thing twice.
+        fun descriptorFor(shortName: String, offset: Int) = zoneDescriptor(
+            TimeZoneOption(id = "X/Y", displayName = "", shortName = shortName, offsetMinutes = offset),
+        )
+        assertThat(descriptorFor("UTC", 0)).isEqualTo("UTC")
+        assertThat(descriptorFor("GMT+05:30", 330)).isEqualTo("GMT+05:30")
+    }
+
+    @Test
+    fun `offset is resolved at the given instant, not the current one`() {
+        val berlin = zones.first { it.id == "Europe/Berlin" }
+        // CEST in June, so +02:00 — a fixed +01:00 would mean we ignored DST.
+        assertThat(berlin.offsetMinutes).isEqualTo(120)
+
+        val winter = timeZoneOptions(Locale.ENGLISH, Instant.parse("2026-01-11T12:00:00Z"))
+        assertThat(winter.first { it.id == "Europe/Berlin" }.offsetMinutes).isEqualTo(60)
+    }
+
+    @Test
+    fun `blank query returns everything unchanged`() {
+        assertThat(filter("")).isEqualTo(zones)
+        assertThat(filter("   ")).isEqualTo(zones)
+    }
+
+    @Test
+    fun `query matches the city, ignoring case and underscores`() {
+        assertThat(filter("new york").map { it.id }).contains("America/New_York")
+        assertThat(filter("NEW YORK").map { it.id }).contains("America/New_York")
+        assertThat(filter("new_york").map { it.id }).contains("America/New_York")
+    }
+
+    @Test
+    fun `query matches accented cities typed plainly`() {
+        // Sao_Paulo has no accent in the id, but its localized name does — the
+        // point is that a user typing plain ASCII still finds it.
+        assertThat(filter("sao paulo").map { it.id }).contains("America/Sao_Paulo")
+        assertThat(filter("zurich").map { it.id }).contains("Europe/Zurich")
+    }
+
+    @Test
+    fun `query matches the full IANA id`() {
+        assertThat(filter("europe/berlin").map { it.id }).contains("Europe/Berlin")
+    }
+
+    @Test
+    fun `query matches the abbreviation, case-insensitively`() {
+        // "cest" isn't a city, id, or substring of "Central European Summer
+        // Time", so the only way these match is via the abbreviation.
+        val hits = filter("cest")
+        assertThat(hits).isNotEmpty()
+        assertThat(hits.map { it.id }).contains("Europe/Berlin")
+        // Every hit genuinely carries that abbreviation — nothing bled in.
+        assertThat(hits.all { it.shortName.equals("CEST", ignoreCase = true) }).isTrue()
+        // Case doesn't matter.
+        assertThat(filter("CEST").map { it.id }).isEqualTo(hits.map { it.id })
+    }
+
+    @Test
+    fun `a city starting with the query outranks one merely containing it`() {
+        val ids = filter("york").map { it.id }
+        // "New York" contains "york"; nothing starts with it, so it should still
+        // surface rather than being buried.
+        assertThat(ids).contains("America/New_York")
+
+        // "col" starts Colombo but only appears mid-string elsewhere.
+        val col = filter("col").map { it.id }
+        assertThat(col.first()).isEqualTo("Asia/Colombo")
+    }
+
+    @Test
+    fun `no match yields an empty list rather than everything`() {
+        assertThat(filter("zzzznotazone")).isEmpty()
+    }
+
+    @Test
+    fun `single zone resolves the same way the catalogue does`() {
+        val fromCatalogue = zones.first { it.id == "Europe/Berlin" }
+        assertThat(timeZoneOptionOf("Europe/Berlin", Locale.ENGLISH, summer))
+            .isEqualTo(fromCatalogue)
+    }
+
+    @Test
+    fun `an unknown zone id resolves to null`() {
+        assertThat(timeZoneOptionOf("Mars/Olympus_Mons")).isNull()
+    }
+
+    @Test
+    fun `gmt offsets format with a sign and padding`() {
+        assertThat(formatGmtOffset(0)).isEqualTo("GMT")
+        assertThat(formatGmtOffset(120)).isEqualTo("GMT+02:00")
+        assertThat(formatGmtOffset(-300)).isEqualTo("GMT-05:00")
+        // India is +05:30 — a whole-hour assumption would render this wrong.
+        assertThat(formatGmtOffset(330)).isEqualTo("GMT+05:30")
+        assertThat(formatGmtOffset(-210)).isEqualTo("GMT-03:30")
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaTimeLabelTest.kt

@@ -0,0 +1,76 @@
+package de.jeanlucmakiola.calendula.ui.agenda
+
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.LocalDateTime
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toInstant
+import kotlin.time.Instant
+import org.junit.jupiter.api.Test
+
+class AgendaTimeLabelTest {
+
+    private val zone = TimeZone.UTC
+
+    private fun at(y: Int, mo: Int, d: Int, h: Int = 0, min: Int = 0): Instant =
+        LocalDateTime(y, mo, d, h, min).toInstant(zone)
+
+    private fun event(start: Instant, end: Instant, isAllDay: Boolean = false) = EventInstance(
+        instanceId = 1,
+        eventId = 1,
+        calendarId = 1,
+        title = "e",
+        start = start,
+        end = end,
+        isAllDay = isAllDay,
+        color = 0,
+        location = null,
+    )
+
+    private fun labelOn(y: Int, mo: Int, d: Int, event: EventInstance) =
+        agendaTimeLabel(event, LocalDate(y, mo, d), zone)
+
+    @Test
+    fun `a single-day timed event is a start-end range`() {
+        val e = event(at(2026, 7, 2, 12, 0), at(2026, 7, 2, 13, 0))
+
+        assertThat(labelOn(2026, 7, 2, e))
+            .isEqualTo(AgendaTimeLabel.Range(e.start, e.end))
+    }
+
+    @Test
+    fun `a single-day all-day event is all-day`() {
+        val e = event(at(2026, 7, 2), at(2026, 7, 3), isAllDay = true)
+
+        assertThat(labelOn(2026, 7, 2, e)).isEqualTo(AgendaTimeLabel.AllDay)
+    }
+
+    @Test
+    fun `a multi-day timed event names the start, middle, and end days`() {
+        val e = event(at(2026, 7, 1, 14, 0), at(2026, 7, 4, 10, 0))
+
+        assertThat(labelOn(2026, 7, 1, e)).isEqualTo(AgendaTimeLabel.Starts(e.start))
+        assertThat(labelOn(2026, 7, 2, e)).isEqualTo(AgendaTimeLabel.AllDay)
+        assertThat(labelOn(2026, 7, 3, e)).isEqualTo(AgendaTimeLabel.AllDay)
+        assertThat(labelOn(2026, 7, 4, e)).isEqualTo(AgendaTimeLabel.Ends(e.end))
+    }
+
+    @Test
+    fun `a multi-day all-day event is all-day on every day`() {
+        val e = event(at(2026, 7, 2), at(2026, 7, 5), isAllDay = true)
+
+        assertThat(labelOn(2026, 7, 2, e)).isEqualTo(AgendaTimeLabel.AllDay)
+        assertThat(labelOn(2026, 7, 3, e)).isEqualTo(AgendaTimeLabel.AllDay)
+        assertThat(labelOn(2026, 7, 4, e)).isEqualTo(AgendaTimeLabel.AllDay)
+    }
+
+    @Test
+    fun `an event begun before the shown day is not labelled as starting`() {
+        // Runs 29 Jun 09:00 → 2 Jul 09:00; on 1 Jul it is mid-span, on 2 Jul it ends.
+        val e = event(at(2026, 6, 29, 9, 0), at(2026, 7, 2, 9, 0))
+
+        assertThat(labelOn(2026, 7, 1, e)).isEqualTo(AgendaTimeLabel.AllDay)
+        assertThat(labelOn(2026, 7, 2, e)).isEqualTo(AgendaTimeLabel.Ends(e.end))
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/agenda/AnchorTodayTest.kt

@@ -0,0 +1,39 @@
+package de.jeanlucmakiola.calendula.ui.agenda
+
+import com.google.common.truth.Truth.assertThat
+import kotlinx.datetime.LocalDate
+import org.junit.jupiter.api.Test
+
+/** Covers the agenda widget's "always show today" anchor logic (#35). */
+class AnchorTodayTest {
+
+    private val today = LocalDate(2026, 6, 17)
+    private val tomorrow = LocalDate(2026, 6, 18)
+
+    @Test
+    fun `disabled leaves the days untouched even when today is absent`() {
+        val days = listOf(AgendaDay(tomorrow, emptyList()))
+        assertThat(anchorTodayIfMissing(days, today, enabled = false)).isEqualTo(days)
+    }
+
+    @Test
+    fun `enabled prepends an empty today when it is missing`() {
+        val days = listOf(AgendaDay(tomorrow, emptyList()))
+        val result = anchorTodayIfMissing(days, today, enabled = true)
+        assertThat(result).hasSize(2)
+        assertThat(result.first()).isEqualTo(AgendaDay(today, emptyList()))
+        assertThat(result[1]).isEqualTo(days.first())
+    }
+
+    @Test
+    fun `enabled anchors today into an otherwise empty list`() {
+        val result = anchorTodayIfMissing(emptyList(), today, enabled = true)
+        assertThat(result).containsExactly(AgendaDay(today, emptyList()))
+    }
+
+    @Test
+    fun `enabled is a no-op when today already has its own day`() {
+        val days = listOf(AgendaDay(today, emptyList()), AgendaDay(tomorrow, emptyList()))
+        assertThat(anchorTodayIfMissing(days, today, enabled = true)).isEqualTo(days)
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/agenda/GroupAgendaDaysTest.kt

@@ -0,0 +1,175 @@
+package de.jeanlucmakiola.calendula.ui.agenda
+
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.LocalDateTime
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toInstant
+import kotlin.time.Instant
+import org.junit.jupiter.api.Test
+
+class GroupAgendaDaysTest {
+
+    private val zone = TimeZone.UTC
+    private val anchor = LocalDate(2026, 7, 1)
+    // A wide window so clamping to the window end is out of the way unless tested.
+    private val windowEnd = LocalDate(2026, 7, 31)
+
+    private fun at(y: Int, mo: Int, d: Int, h: Int = 0, min: Int = 0): Instant =
+        LocalDateTime(y, mo, d, h, min).toInstant(zone)
+
+    private fun event(
+        id: Long,
+        title: String,
+        start: Instant,
+        end: Instant,
+        isAllDay: Boolean = false,
+    ) = EventInstance(
+        instanceId = id,
+        eventId = id,
+        calendarId = 1,
+        title = title,
+        start = start,
+        end = end,
+        isAllDay = isAllDay,
+        color = 0,
+        location = null,
+    )
+
+    private fun days(instances: List<EventInstance>) =
+        groupAgendaDays(anchor, windowEnd, instances, zone)
+
+    @Test
+    fun `a timed multi-day event lists on every day it spans`() {
+        val e = event(1, "trip", at(2026, 7, 1, 14, 0), at(2026, 7, 3, 10, 0))
+
+        val result = days(listOf(e))
+
+        assertThat(result.map { it.date }).containsExactly(
+            LocalDate(2026, 7, 1),
+            LocalDate(2026, 7, 2),
+            LocalDate(2026, 7, 3),
+        ).inOrder()
+        result.forEach { assertThat(it.events).containsExactly(e) }
+    }
+
+    @Test
+    fun `an all-day multi-day event stops before its exclusive next-midnight end`() {
+        // 1–3 July inclusive: end is the exclusive midnight opening 4 July.
+        val e = event(1, "holiday", at(2026, 7, 1), at(2026, 7, 4), isAllDay = true)
+
+        val result = days(listOf(e))
+
+        assertThat(result.map { it.date }).containsExactly(
+            LocalDate(2026, 7, 1),
+            LocalDate(2026, 7, 2),
+            LocalDate(2026, 7, 3),
+        ).inOrder()
+    }
+
+    @Test
+    fun `a single-day event lists exactly once`() {
+        val e = event(1, "lunch", at(2026, 7, 2, 12, 0), at(2026, 7, 2, 13, 0))
+
+        assertThat(days(listOf(e)).map { it.date })
+            .containsExactly(LocalDate(2026, 7, 2))
+    }
+
+    @Test
+    fun `an event ending exactly at midnight does not reach the next day`() {
+        val e = event(1, "late", at(2026, 7, 1, 22, 0), at(2026, 7, 2, 0, 0))
+
+        assertThat(days(listOf(e)).map { it.date })
+            .containsExactly(LocalDate(2026, 7, 1))
+    }
+
+    @Test
+    fun `an event begun before the anchor is clamped to the anchor day`() {
+        val e = event(1, "ongoing", at(2026, 6, 29, 9, 0), at(2026, 7, 2, 9, 0))
+
+        assertThat(days(listOf(e)).map { it.date }).containsExactly(
+            LocalDate(2026, 7, 1),
+            LocalDate(2026, 7, 2),
+        ).inOrder()
+    }
+
+    @Test
+    fun `an event running past the window is clamped to the last visible day`() {
+        val narrowEnd = LocalDate(2026, 7, 2)
+        val e = event(1, "long", at(2026, 7, 1, 9, 0), at(2026, 7, 5, 9, 0))
+
+        val result = groupAgendaDays(anchor, narrowEnd, listOf(e), zone)
+
+        assertThat(result.map { it.date }).containsExactly(
+            LocalDate(2026, 7, 1),
+            LocalDate(2026, 7, 2),
+        ).inOrder()
+    }
+
+    // All-day events are stored at UTC midnights; resolving them in a device
+    // zone east of UTC would leak them onto the following day (see spanLastDay).
+    private val berlin = TimeZone.of("Europe/Berlin")
+
+    private fun utcMidnight(y: Int, mo: Int, d: Int): Instant =
+        LocalDateTime(y, mo, d, 0, 0).toInstant(TimeZone.UTC)
+
+    @Test
+    fun `a single-day all-day event does not leak onto the next day in an eastern zone`() {
+        val e = event(1, "birthday", utcMidnight(2026, 7, 2), utcMidnight(2026, 7, 3), isAllDay = true)
+
+        val result = groupAgendaDays(anchor, windowEnd, listOf(e), berlin)
+
+        assertThat(result.map { it.date }).containsExactly(LocalDate(2026, 7, 2))
+        assertThat(e.spansMultipleDays(berlin)).isFalse()
+    }
+
+    @Test
+    fun `an all-day multi-day event spans its true days in an eastern zone`() {
+        // 2–4 July inclusive: exclusive end is the UTC midnight opening 5 July.
+        val e = event(1, "holiday", utcMidnight(2026, 7, 2), utcMidnight(2026, 7, 5), isAllDay = true)
+
+        val result = groupAgendaDays(anchor, windowEnd, listOf(e), berlin)
+
+        assertThat(result.map { it.date }).containsExactly(
+            LocalDate(2026, 7, 2),
+            LocalDate(2026, 7, 3),
+            LocalDate(2026, 7, 4),
+        ).inOrder()
+    }
+
+    @Test
+    fun `yesterday's all-day event does not surface under the anchor day in an eastern zone`() {
+        // The agenda window starts at the anchor's local midnight, which in Berlin is
+        // 22:00 UTC the day before — so an all-day event that ended yesterday (whose
+        // exclusive UTC-midnight end sits at that instant) is still returned by the
+        // provider. It must not be clamped onto the anchor's "today" section (#65).
+        val jul19 = LocalDate(2026, 7, 19)
+        val e = event(1, "birthday", utcMidnight(2026, 7, 18), utcMidnight(2026, 7, 19), isAllDay = true)
+
+        val result = groupAgendaDays(jul19, LocalDate(2026, 8, 18), listOf(e), berlin)
+
+        assertThat(result).isEmpty()
+    }
+
+    @Test
+    fun `an all-day event that falls entirely past the window end is dropped`() {
+        // The same guard, at the far edge: an instance whose true days are all beyond
+        // windowEnd occupies no visible day and must not be clamped onto the last one.
+        val e = event(1, "birthday", utcMidnight(2026, 7, 3), utcMidnight(2026, 7, 4), isAllDay = true)
+
+        val result = groupAgendaDays(anchor, LocalDate(2026, 7, 2), listOf(e), berlin)
+
+        assertThat(result).isEmpty()
+    }
+
+    @Test
+    fun `within a day all-day events sort before timed ones`() {
+        val allDay = event(1, "birthday", at(2026, 7, 1), at(2026, 7, 2), isAllDay = true)
+        val timed = event(2, "call", at(2026, 7, 1, 9, 0), at(2026, 7, 1, 10, 0))
+
+        val dayOne = days(listOf(timed, allDay)).first { it.date == anchor }
+
+        assertThat(dayOne.events).containsExactly(allDay, timed).inOrder()
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/common/RecurrenceTextTest.kt

@@ -0,0 +1,69 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import com.google.common.truth.Truth.assertThat
+import java.time.LocalDate
+import java.time.ZoneId
+import org.junit.jupiter.api.Test
+
+/**
+ * The read side of the UNTIL round-trip. `SimpleRecurrence.toRRule` deliberately
+ * writes the end of the chosen *local* day expressed in UTC (see its docs — the
+ * provider applies UNTIL coarsely), so displaying it means converting back into
+ * the device zone first. Reading the leading digits raw showed the wrong day for
+ * zones behind UTC.
+ */
+class RecurrenceTextTest {
+
+    private val berlin = ZoneId.of("Europe/Berlin")
+    private val losAngeles = ZoneId.of("America/Los_Angeles")
+    private val utc = ZoneId.of("UTC")
+
+    @Test
+    fun `UTC form converts back to the picked day west of UTC`() {
+        // toRRule("2026-12-31", America/Los_Angeles) → 23:59:59 local = 07:59:59Z
+        // on 1 Jan. Reading the digits raw would show 1 Jan 2027.
+        assertThat(untilLocalDate("20270101T075959Z", losAngeles))
+            .isEqualTo(LocalDate.of(2026, 12, 31))
+    }
+
+    @Test
+    fun `UTC form converts back to the picked day east of UTC`() {
+        // Berlin in December is UTC+1: 23:59:59 local = 22:59:59Z the same day.
+        assertThat(untilLocalDate("20261231T225959Z", berlin))
+            .isEqualTo(LocalDate.of(2026, 12, 31))
+    }
+
+    @Test
+    fun `UTC form is unchanged at UTC itself`() {
+        assertThat(untilLocalDate("20261231T235959Z", utc))
+            .isEqualTo(LocalDate.of(2026, 12, 31))
+    }
+
+    @Test
+    fun `summer offset is honoured, not a fixed one`() {
+        // Berlin in July is UTC+2, so the same local end-of-day lands at 21:59:59Z.
+        assertThat(untilLocalDate("20260801T215959Z", berlin))
+            .isEqualTo(LocalDate.of(2026, 8, 1))
+    }
+
+    @Test
+    fun `date-only form is already local and passes through`() {
+        assertThat(untilLocalDate("20261231", losAngeles))
+            .isEqualTo(LocalDate.of(2026, 12, 31))
+    }
+
+    @Test
+    fun `floating date-time form uses its date as-is`() {
+        // No trailing Z, so it isn't an instant — no conversion may be applied.
+        assertThat(untilLocalDate("20261231T235959", losAngeles))
+            .isEqualTo(LocalDate.of(2026, 12, 31))
+    }
+
+    @Test
+    fun `garbage returns null rather than throwing`() {
+        assertThat(untilLocalDate("", berlin)).isNull()
+        assertThat(untilLocalDate("nonsense", berlin)).isNull()
+        assertThat(untilLocalDate("2026", berlin)).isNull()
+        assertThat(untilLocalDate("20261340", berlin)).isNull()
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/edit/EventEditViewModelTest.kt

@@ -0,0 +1,158 @@
+package de.jeanlucmakiola.calendula.ui.edit
+
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.PreferenceDataStoreFactory
+import androidx.datastore.preferences.core.Preferences
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.data.calendar.CalendarRepositoryImpl
+import de.jeanlucmakiola.calendula.data.calendar.FakeCalendarDataSource
+import de.jeanlucmakiola.calendula.data.prefs.CalendarPrefs
+import de.jeanlucmakiola.calendula.data.prefs.SettingsPrefs
+import de.jeanlucmakiola.calendula.domain.CalendarSource
+import de.jeanlucmakiola.calendula.domain.EventDetail
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.test.UnconfinedTestDispatcher
+import kotlinx.coroutines.test.advanceUntilIdle
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.runTest
+import kotlinx.coroutines.test.setMain
+import kotlinx.coroutines.Dispatchers
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.io.TempDir
+import java.nio.file.Path
+import kotlin.time.Instant
+
+/**
+ * Focuses on the save-time branch that decides between an in-place update and a
+ * calendar *move* (copy+delete). The provider-level move itself is verified
+ * on-device; here the fake records which repository call the ViewModel chose.
+ */
+@OptIn(ExperimentalCoroutinesApi::class)
+class EventEditViewModelTest {
+
+    private val dispatcher = UnconfinedTestDispatcher()
+
+    @BeforeEach fun setUp() = Dispatchers.setMain(dispatcher)
+    @AfterEach fun tearDown() = Dispatchers.resetMain()
+
+    private val beginMillis = 1_781_164_800_000L
+    private val endMillis = beginMillis + 3_600_000L
+
+    private fun cal(id: Long): CalendarSource = CalendarSource(
+        id = id, displayName = "Cal $id", accountName = "acc@local", accountType = "LOCAL",
+        color = 0xFF112233.toInt(), isVisibleInSystem = true, canModifyContents = true,
+    )
+
+    private fun detail(calendarId: Long, rrule: String? = null): EventDetail = EventDetail(
+        instance = EventInstance(
+            instanceId = 42L, eventId = 42L, calendarId = calendarId, title = "Standup",
+            start = Instant.fromEpochMilliseconds(beginMillis),
+            end = Instant.fromEpochMilliseconds(endMillis),
+            isAllDay = false, color = 0xFF000000.toInt(), location = null,
+        ),
+        description = null, organizer = null, attendees = emptyList(), rrule = rrule,
+    )
+
+    // Pin the DataStore's scope to the test dispatcher so a settings write (e.g.
+    // last-used calendar) completes under advanceUntilIdle instead of on a real
+    // IO thread the virtual clock can't observe.
+    private fun prefs(tempDir: Path): CalendarPrefs = CalendarPrefs(
+        PreferenceDataStoreFactory.create(
+            scope = CoroutineScope(dispatcher),
+            produceFile = { tempDir.resolve("vm_prefs.preferences_pb").toFile() },
+        ),
+    )
+
+    private fun settings(tempDir: Path): SettingsPrefs = SettingsPrefs(
+        PreferenceDataStoreFactory.create(
+            scope = CoroutineScope(dispatcher),
+            produceFile = { tempDir.resolve("vm_settings.preferences_pb").toFile() },
+        ),
+    )
+
+    private fun viewModel(
+        tempDir: Path,
+        fake: FakeCalendarDataSource,
+    ): EventEditViewModel {
+        val p = prefs(tempDir)
+        val s = settings(tempDir)
+        val repo = CalendarRepositoryImpl(fake, p, s, dispatcher as CoroutineDispatcher)
+        return EventEditViewModel(repo, p, s, dispatcher)
+    }
+
+    /** Keep [EventEditViewModel.state] hot so it computes while the test drives it. */
+    private fun CoroutineScope.activate(vm: EventEditViewModel): Job = launch { vm.state.collect {} }
+
+    @Test
+    fun `changing the calendar routes the save through a move, not an update`(
+        @TempDir tempDir: Path,
+    ) = runTest(dispatcher) {
+        val fake = FakeCalendarDataSource().apply {
+            calendarsResult = listOf(cal(1L), cal(2L))
+            eventDetailResult = { detail(calendarId = 1L) }
+            nextInsertId = 99L
+        }
+        val vm = viewModel(tempDir, fake)
+        val job = activate(vm)
+
+        vm.openForEdit(eventId = 42L, beginMillis = beginMillis, endMillis = endMillis)
+        vm.setCalendar(2L)
+        vm.save()
+        advanceUntilIdle()
+
+        assertThat(fake.movedEvents).hasSize(1)
+        assertThat(fake.movedEvents.single().eventId).isEqualTo(42L)
+        assertThat(fake.movedEvents.single().targetCalendarId).isEqualTo(2L)
+        assertThat(fake.updatedEvents).isEmpty()
+        assertThat(vm.state.value?.saveState).isEqualTo(SaveUiState.Saved)
+        job.cancel()
+    }
+
+    @Test
+    fun `moving a recurring event skips the scope dialog`(@TempDir tempDir: Path) = runTest(dispatcher) {
+        val fake = FakeCalendarDataSource().apply {
+            calendarsResult = listOf(cal(1L), cal(2L))
+            eventDetailResult = { detail(calendarId = 1L, rrule = "FREQ=WEEKLY") }
+        }
+        val vm = viewModel(tempDir, fake)
+        val job = activate(vm)
+
+        vm.openForEdit(eventId = 42L, beginMillis = beginMillis, endMillis = endMillis)
+        vm.setCalendar(2L)
+        vm.save()
+        advanceUntilIdle()
+
+        // No AwaitingScope park: a move is inherently whole-series.
+        assertThat(vm.state.value?.saveState).isEqualTo(SaveUiState.Saved)
+        assertThat(fake.movedEvents).hasSize(1)
+        job.cancel()
+    }
+
+    @Test
+    fun `editing a recurring event without moving still asks for the scope`(
+        @TempDir tempDir: Path,
+    ) = runTest(dispatcher) {
+        val fake = FakeCalendarDataSource().apply {
+            calendarsResult = listOf(cal(1L), cal(2L))
+            eventDetailResult = { detail(calendarId = 1L, rrule = "FREQ=WEEKLY") }
+        }
+        val vm = viewModel(tempDir, fake)
+        val job = activate(vm)
+
+        vm.openForEdit(eventId = 42L, beginMillis = beginMillis, endMillis = endMillis)
+        vm.setTitle("Renamed")
+        vm.save()
+        advanceUntilIdle()
+
+        assertThat(vm.state.value?.saveState).isEqualTo(SaveUiState.AwaitingScope)
+        assertThat(fake.movedEvents).isEmpty()
+        job.cancel()
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/month/ClipWeekToMonthTest.kt

@@ -0,0 +1,120 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.datetime.DateTimeUnit
+import kotlinx.datetime.DayOfWeek
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.Month
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.YearMonth
+import kotlinx.datetime.atTime
+import kotlinx.datetime.plus
+import kotlinx.datetime.toInstant
+import org.junit.jupiter.api.Test
+
+/**
+ * What makes the continuous style's month blocks self-contained: a boundary week
+ * keeps its seven columns but carries only the block's own month.
+ */
+class ClipWeekToMonthTest {
+
+    private val zone = TimeZone.UTC
+    private val jul26 = YearMonth(2026, Month.JULY)
+
+    private fun allDay(from: LocalDate, toInclusive: LocalDate, id: Long = 1L) = EventInstance(
+        instanceId = id,
+        eventId = id,
+        calendarId = 1L,
+        title = "A",
+        start = from.atTime(0, 0).toInstant(TimeZone.UTC),
+        end = toInclusive.plus(1, DateTimeUnit.DAY).atTime(0, 0).toInstant(TimeZone.UTC),
+        isAllDay = true,
+        color = 0xFF445566.toInt(),
+        location = null,
+    )
+
+    private fun timed(date: LocalDate, hour: Int, id: Long = 2L) = EventInstance(
+        instanceId = id,
+        eventId = id,
+        calendarId = 1L,
+        title = "T",
+        start = date.atTime(hour, 0).toInstant(zone),
+        end = date.atTime(hour + 1, 0).toInstant(zone),
+        isAllDay = false,
+        color = 0xFF112233.toInt(),
+        location = null,
+    )
+
+    /** July 2026 starts on a Wednesday, so its first Monday-anchored row is Jun 29 – Jul 5. */
+    private fun firstRowOfJuly(events: List<EventInstance>) =
+        clipWeekToMonth(
+            layoutMonthWeeks(jul26, DayOfWeek.MONDAY, events, zone).first(),
+            jul26,
+        )
+
+    @Test
+    fun `the row keeps all seven days so the columns don't shift`() {
+        val week = firstRowOfJuly(emptyList())
+        assertThat(week.days).hasSize(7)
+        assertThat(week.days.first()).isEqualTo(LocalDate(2026, 6, 29))
+    }
+
+    @Test
+    fun `the neighbour month's events are dropped`() {
+        val june = timed(LocalDate(2026, 6, 30), 9)
+        val july = timed(LocalDate(2026, 7, 1), 9, id = 3L)
+        val week = firstRowOfJuly(listOf(june, july))
+
+        assertThat(week.timedByDay.keys).doesNotContain(LocalDate(2026, 6, 30))
+        assertThat(week.timedByDay[LocalDate(2026, 7, 1)]).containsExactly(july)
+        assertThat(week.countByDay[LocalDate(2026, 6, 30)]).isNull()
+        assertThat(week.countByDay[LocalDate(2026, 7, 1)]).isEqualTo(1)
+    }
+
+    @Test
+    fun `a bar reaching in from the previous month is cut back to the 1st`() {
+        // Jun 29 – Jul 2: columns 0..3 unclipped, 2..3 once July owns the row.
+        val week = firstRowOfJuly(listOf(allDay(LocalDate(2026, 6, 29), LocalDate(2026, 7, 2))))
+
+        val span = week.spans.single()
+        assertThat(span.startCol).isEqualTo(2) // Wednesday the 1st
+        assertThat(span.endCol).isEqualTo(3)
+        // Flat cap on the cut side: the event continues out of this block.
+        assertThat(span.continuesLeft).isTrue()
+        assertThat(span.continuesRight).isFalse()
+    }
+
+    @Test
+    fun `a bar living entirely in the neighbour month disappears`() {
+        val week = firstRowOfJuly(listOf(allDay(LocalDate(2026, 6, 29), LocalDate(2026, 6, 30))))
+        assertThat(week.spans).isEmpty()
+    }
+
+    @Test
+    fun `a bar reaching out into the next month is cut at the last day`() {
+        // Jul 29 – Aug 2 sits in July's final row (Jul 27 – Aug 2).
+        val weeks = layoutMonthWeeks(
+            jul26,
+            DayOfWeek.MONDAY,
+            listOf(allDay(LocalDate(2026, 7, 29), LocalDate(2026, 8, 2))),
+            zone,
+        )
+        val span = clipWeekToMonth(weeks.last(), jul26).spans.single()
+        assertThat(span.startCol).isEqualTo(2) // Wednesday the 29th
+        assertThat(span.endCol).isEqualTo(4) // Friday the 31st
+        assertThat(span.continuesRight).isTrue()
+        assertThat(span.continuesLeft).isFalse()
+    }
+
+    @Test
+    fun `a row wholly inside the month is untouched`() {
+        val mid = layoutMonthWeeks(
+            jul26,
+            DayOfWeek.MONDAY,
+            listOf(timed(LocalDate(2026, 7, 8), 9), allDay(LocalDate(2026, 7, 7), LocalDate(2026, 7, 9))),
+            zone,
+        )[1]
+        assertThat(clipWeekToMonth(mid, jul26)).isEqualTo(mid)
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/month/ContinuousMonthIndexTest.kt

@@ -0,0 +1,238 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import com.google.common.truth.Truth.assertThat
+import kotlinx.datetime.DateTimeUnit
+import kotlinx.datetime.DayOfWeek
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.Month
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.YearMonth
+import kotlinx.datetime.minus
+import kotlinx.datetime.plus
+import org.junit.jupiter.api.Test
+
+/**
+ * The continuous grid's coordinate space. Every block's identity — and the
+ * LazyColumn items it maps to — hangs off this arithmetic, so it gets its own
+ * tests rather than being exercised only through the UI.
+ */
+class ContinuousMonthIndexTest {
+
+    private val jun26 = YearMonth(2026, Month.JUNE)
+
+    @Test
+    fun `consecutive months are consecutive indices`() {
+        val jun = monthIndexOf(jun26)
+        assertThat(monthIndexOf(YearMonth(2026, Month.JULY))).isEqualTo(jun + 1)
+        assertThat(monthIndexOf(YearMonth(2026, Month.MAY))).isEqualTo(jun - 1)
+        // And across the year boundary.
+        assertThat(monthIndexOf(YearMonth(2027, Month.JANUARY)))
+            .isEqualTo(monthIndexOf(YearMonth(2026, Month.DECEMBER)) + 1)
+    }
+
+    @Test
+    fun `index round-trips back to its month`() {
+        listOf(
+            YearMonth(1900, Month.JANUARY),
+            jun26,
+            YearMonth(2026, Month.DECEMBER),
+            YearMonth(2100, Month.DECEMBER),
+        ).forEach { ym ->
+            assertThat(yearMonthForIndex(monthIndexOf(ym))).isEqualTo(ym)
+        }
+    }
+
+    @Test
+    fun `indices are non-negative and span 1900 through 2100`() {
+        assertThat(monthIndexOf(YearMonth(1900, Month.JANUARY))).isEqualTo(0)
+        assertThat(monthIndexOf(jun26)).isGreaterThan(0)
+        assertThat(monthIndexOf(YearMonth(2100, Month.DECEMBER)))
+            .isEqualTo(continuousMonthCount() - 1)
+        assertThat(continuousMonthCount()).isEqualTo(201 * 12)
+    }
+
+    @Test
+    fun `a month maps to its header item and back`() {
+        val index = monthIndexOf(jun26)
+        val item = itemIndexForMonth(index)
+        // Both of a month's items — its sticky header and the block under it —
+        // resolve back to the same month, so a title read off the first visible
+        // item is right wherever the viewport sits inside the block.
+        assertThat(monthIndexForItem(item)).isEqualTo(index)
+        assertThat(monthIndexForItem(item + 1)).isEqualTo(index)
+        assertThat(monthIndexForItem(item + 2)).isEqualTo(index + 1)
+    }
+
+    @Test
+    fun `week rows follow the month's shape and its week start`() {
+        // June 2026 starts on a Monday: 30 days → 5 rows either way.
+        assertThat(weekRowsInMonth(jun26, DayOfWeek.MONDAY)).isEqualTo(5)
+        assertThat(weekRowsInMonth(jun26, DayOfWeek.SUNDAY)).isEqualTo(5)
+        // February 2026 starts on a Sunday: a Sunday-anchored grid fits it in 4
+        // rows, a Monday-anchored one needs 5 — the block's height moves with the
+        // preference even though its position in the list doesn't.
+        val feb26 = YearMonth(2026, Month.FEBRUARY)
+        assertThat(weekRowsInMonth(feb26, DayOfWeek.SUNDAY)).isEqualTo(4)
+        assertThat(weekRowsInMonth(feb26, DayOfWeek.MONDAY)).isEqualTo(5)
+        // February 2021 starts on a Monday and is 28 days → exactly 4.
+        assertThat(weekRowsInMonth(YearMonth(2021, Month.FEBRUARY), DayOfWeek.MONDAY))
+            .isEqualTo(4)
+    }
+
+    @Test
+    fun `the placeholder block is the size the loaded one will be`() {
+        // Otherwise scrolling across an unloaded month jumps when its data lands.
+        (0 until 24).forEach { offset ->
+            val ym = yearMonthForIndex(monthIndexOf(jun26) + offset)
+            DayOfWeek.entries.forEach { ws ->
+                assertThat(weekRowsInMonth(ym, ws))
+                    .isEqualTo(layoutMonthWeeks(ym, ws, emptyList(), TimeZone.UTC).size)
+            }
+        }
+    }
+
+    @Test
+    fun `a window is clamped to the months that exist`() {
+        // The regression this guards: an empty visible-items list reported as
+        // "month 0", whose padded window ran to -4 — and yearMonthForIndex has
+        // no month for that, so the whole grid failed with "couldn't read".
+        assertThat(clampMonthWindow(-4..4)).isEqualTo(0..4)
+        val last = continuousMonthCount() - 1
+        assertThat(clampMonthWindow((last - 2)..(last + 4))).isEqualTo((last - 2)..last)
+        assertThat(clampMonthWindow(10..20)).isEqualTo(10..20)
+    }
+
+    @Test
+    fun `every index a clamped window can hold resolves to a month`() {
+        listOf(clampMonthWindow(-4..4), clampMonthWindow((continuousMonthCount() - 1)..(continuousMonthCount() + 3)))
+            .forEach { window ->
+                window.forEach { index -> yearMonthForIndex(index) }
+            }
+    }
+
+    @Test
+    fun `the dense week window covers every week its months touch`() {
+        // One month-window load has to lay out every Dense row those months
+        // appear in, boundary weeks included, or rows would flicker as
+        // placeholders while the data for them is already in hand.
+        DayOfWeek.entries.forEach { ws ->
+            val window = monthIndexOf(jun26)..monthIndexOf(YearMonth(2026, Month.AUGUST))
+            val weeks = weekWindowFor(window, ws)
+            window.forEach { index ->
+                val ym = yearMonthForIndex(index)
+                val first = weekIndexOf(firstOfMonth(ym), ws)
+                val last = weekIndexOf(firstOfMonth(yearMonthForIndex(index + 1)).minus(1, DateTimeUnit.DAY), ws)
+                assertThat(weeks.contains(first)).isTrue()
+                assertThat(weeks.contains(last)).isTrue()
+            }
+        }
+    }
+
+    @Test
+    fun `a dense row reports the month that owns most of it`() {
+        // June 29 – July 5, 2026 (Monday-anchored): four of its days are July's,
+        // so the window follows July rather than snapping back to June.
+        val boundary = weekIndexOf(LocalDate(2026, 6, 29), DayOfWeek.MONDAY)
+        assertThat(monthIndexForWeek(boundary, DayOfWeek.MONDAY))
+            .isEqualTo(monthIndexOf(YearMonth(2026, Month.JULY)))
+        // A row wholly inside June reports June.
+        assertThat(monthIndexForWeek(weekIndexOf(LocalDate(2026, 6, 15), DayOfWeek.MONDAY), DayOfWeek.MONDAY))
+            .isEqualTo(monthIndexOf(jun26))
+    }
+
+    @Test
+    fun `every day of a dense week shares one index`() {
+        val mon = LocalDate(2026, 6, 8)
+        val indices = (0..6).map { weekIndexOf(mon.plus(it, DateTimeUnit.DAY), DayOfWeek.MONDAY) }
+        assertThat(indices.toSet()).hasSize(1)
+    }
+
+    @Test
+    fun `dense week indices round-trip and stay inside the list`() {
+        val wed = LocalDate(2026, 6, 10)
+        DayOfWeek.entries.forEach { ws ->
+            val index = weekIndexOf(wed, ws)
+            assertThat(weekStartForIndex(index, ws)).isEqualTo(wed.startOfGridWeek(ws))
+            assertThat(weekIndexOf(LocalDate(1900, 1, 1), ws)).isAtLeast(0)
+            assertThat(index).isLessThan(continuousWeekCount(ws))
+            assertThat(weekIndexOf(LocalDate(2100, 12, 31), ws))
+                .isLessThan(continuousWeekCount(ws))
+        }
+    }
+
+    @Test
+    fun `firstOfMonth is the 1st`() {
+        assertThat(firstOfMonth(jun26)).isEqualTo(LocalDate(2026, 6, 1))
+    }
+
+    @Test
+    fun `a window comfortably around the visible range is kept`() {
+        assertThat(nextLoadWindow(loaded = 0..100, firstVisible = 40, lastVisible = 45)).isNull()
+    }
+
+    @Test
+    fun `nearing a loaded edge widens the window around the visible range`() {
+        // Within two months of the top edge → reload, padded on both sides.
+        assertThat(nextLoadWindow(loaded = 0..100, firstVisible = 1, lastVisible = 2))
+            .isEqualTo(-4..7)
+
+        assertThat(nextLoadWindow(loaded = 0..100, firstVisible = 98, lastVisible = 100))
+            .isEqualTo(93..105)
+    }
+
+    @Test
+    fun `a jump far outside the window reloads around the destination`() {
+        assertThat(nextLoadWindow(loaded = 0..100, firstVisible = 500, lastVisible = 501))
+            .isEqualTo(495..506)
+    }
+
+    @Test
+    fun `the reloaded window always clears the trigger it just crossed`() {
+        // Otherwise every scroll frame would re-trigger a query — and with the
+        // window growing from a pad of 1, this has to hold at every rung of the
+        // ladder, not just the widest one.
+        (1..8).forEach { pad ->
+            val loaded = (10 - pad)..(10 + pad)
+            val past = 10 + pad + 1
+            val widened = nextLoadWindow(loaded, past, past, pad)!!
+            assertThat(nextLoadWindow(widened, past, past, pad)).isNull()
+        }
+    }
+
+    @Test
+    fun `the reload trigger stays inside the pad`() {
+        // A trigger at or beyond the pad would fire again the instant its own
+        // reload landed, and the window would query forever.
+        (1..8).forEach { pad -> assertThat(edgeForPad(pad)).isLessThan(pad) }
+        // A one-month window has no room for hysteresis: reload only on contact.
+        assertThat(edgeForPad(1)).isEqualTo(0)
+        assertThat(edgeForPad(0)).isEqualTo(0)
+    }
+
+    @Test
+    fun `the smallest window reloads on crossing rather than nearing its edge`() {
+        // The first frame loads one month either side of today, which leaves no
+        // room to reload *before* the edge: at pad 1 the trigger is contact.
+        // Only momentary — the first completed load widens the pad to 3, which
+        // buys the usual head start back.
+        val initial = 10..12
+        assertThat(nextLoadWindow(initial, firstVisible = 12, lastVisible = 12, pad = 1)).isNull()
+        assertThat(nextLoadWindow(initial, firstVisible = 13, lastVisible = 13, pad = 1))
+            .isEqualTo(12..14)
+    }
+
+    @Test
+    fun `the split selection follows the month, landing on today when it's there`() {
+        val today = LocalDate(2026, 6, 10)
+        assertThat(selectionForMonth(jun26, today)).isEqualTo(today)
+    }
+
+    @Test
+    fun `the split selection falls to the 1st of any other month`() {
+        val today = LocalDate(2026, 6, 10)
+        assertThat(selectionForMonth(YearMonth(2026, Month.JULY), today))
+            .isEqualTo(LocalDate(2026, 7, 1))
+        assertThat(selectionForMonth(YearMonth(2025, Month.JUNE), today))
+            .isEqualTo(LocalDate(2025, 6, 1))
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/month/DayIndexTest.kt

@@ -0,0 +1,121 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.datetime.DateTimeUnit
+import kotlinx.datetime.DayOfWeek
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.Month
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.YearMonth
+import kotlinx.datetime.atTime
+import kotlinx.datetime.minus
+import kotlinx.datetime.plus
+import kotlinx.datetime.toInstant
+import org.junit.jupiter.api.Test
+
+/**
+ * [DayIndex] exists purely to make the scrolling styles cheap, so what it owes
+ * is that cheapness changes *nothing*: a row laid out from the index must be the
+ * row that would have come from scanning every instance.
+ *
+ * Run in a zone east of UTC, where the all-day anchoring and the day boundaries
+ * disagree — the case that has bitten this codebase before (#65).
+ */
+class DayIndexTest {
+
+    private val zone = TimeZone.of("Europe/Berlin")
+    private val mon = LocalDate(2026, 6, 8)
+    private val week = (0..6).map { mon.plus(it, DateTimeUnit.DAY) }
+
+    private var nextId = 0L
+
+    private fun timed(from: LocalDate, startHour: Int, to: LocalDate, endHour: Int): EventInstance {
+        val id = ++nextId
+        return EventInstance(
+            instanceId = id,
+            eventId = id,
+            calendarId = 1L,
+            title = "T$id",
+            start = from.atTime(startHour, 0).toInstant(zone),
+            end = to.atTime(endHour, 0).toInstant(zone),
+            isAllDay = false,
+            color = 0xFF112233.toInt(),
+            location = null,
+        )
+    }
+
+    private fun allDay(from: LocalDate, toInclusive: LocalDate): EventInstance {
+        val id = ++nextId
+        return EventInstance(
+            instanceId = id,
+            eventId = id,
+            calendarId = 1L,
+            title = "A$id",
+            start = from.atTime(0, 0).toInstant(TimeZone.UTC),
+            end = toInclusive.plus(1, DateTimeUnit.DAY).atTime(0, 0).toInstant(TimeZone.UTC),
+            isAllDay = true,
+            color = 0xFF445566.toInt(),
+            location = null,
+        )
+    }
+
+    /** Every shape the layout distinguishes, plus the boundary cases around them. */
+    private fun awkwardEvents(): List<EventInstance> = listOf(
+        timed(mon, 9, mon, 10),
+        // Crosses midnight into the next day.
+        timed(mon.plus(1, DateTimeUnit.DAY), 23, mon.plus(2, DateTimeUnit.DAY), 1),
+        // Ends exactly at midnight: covers its own day, not the next.
+        timed(mon.plus(3, DateTimeUnit.DAY), 22, mon.plus(4, DateTimeUnit.DAY), 0),
+        // Zero length, at midnight: covers nothing at all.
+        timed(mon.plus(4, DateTimeUnit.DAY), 0, mon.plus(4, DateTimeUnit.DAY), 0),
+        allDay(mon.plus(2, DateTimeUnit.DAY), mon.plus(2, DateTimeUnit.DAY)),
+        // Runs in from before the row and out past its end.
+        allDay(mon.minus(3, DateTimeUnit.DAY), mon.plus(9, DateTimeUnit.DAY)),
+        // Wholly outside the row, both sides.
+        timed(mon.minus(10, DateTimeUnit.DAY), 9, mon.minus(10, DateTimeUnit.DAY), 10),
+        allDay(mon.plus(20, DateTimeUnit.DAY), mon.plus(21, DateTimeUnit.DAY)),
+        // Two on one day, to pin the ordering the index hands back.
+        timed(mon.plus(5, DateTimeUnit.DAY), 8, mon.plus(5, DateTimeUnit.DAY), 9),
+        timed(mon.plus(5, DateTimeUnit.DAY), 14, mon.plus(5, DateTimeUnit.DAY), 15),
+    )
+
+    @Test
+    fun `a row from the index is the row from a full scan`() {
+        val events = awkwardEvents()
+        val scanned = layoutCalendarWeek(week, events, zone)
+        val indexed = layoutCalendarWeek(week, DayIndex(events, zone).eventsOn(week), zone)
+        assertThat(indexed).isEqualTo(scanned)
+    }
+
+    @Test
+    fun `a whole month agrees, row for row`() {
+        val events = awkwardEvents()
+        val jun = YearMonth(2026, Month.JUNE)
+        DayOfWeek.entries.forEach { ws ->
+            assertThat(layoutMonthWeeks(jun, ws, DayIndex(events, zone), zone))
+                .isEqualTo(layoutMonthWeeks(jun, ws, events, zone))
+        }
+    }
+
+    @Test
+    fun `an event covering several of a row's days is listed once`() {
+        // It is bucketed on each date it covers, so the row would otherwise see
+        // it repeatedly and lay out a lane per copy.
+        val long = allDay(mon, mon.plus(4, DateTimeUnit.DAY))
+        val events = DayIndex(listOf(long), zone).eventsOn(week)
+        assertThat(events).containsExactly(long)
+    }
+
+    @Test
+    fun `days no event touches come back empty`() {
+        val index = DayIndex(listOf(timed(mon, 9, mon, 10)), zone)
+        assertThat(index.eventsOn(listOf(mon.plus(1, DateTimeUnit.DAY)))).isEmpty()
+        assertThat(index.eventsOn(emptyList())).isEmpty()
+    }
+
+    @Test
+    fun `an empty calendar indexes to nothing`() {
+        assertThat(DayIndex(emptyList(), zone).eventsOn(week)).isEmpty()
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/month/LaneEventsTest.kt

@@ -0,0 +1,129 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.datetime.DateTimeUnit
+import kotlinx.datetime.DayOfWeek
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.Month
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.YearMonth
+import kotlinx.datetime.atTime
+import kotlinx.datetime.plus
+import kotlinx.datetime.toInstant
+import org.junit.jupiter.api.Test
+
+/**
+ * What lets the split style's dots morph into the paged style's bars (#53): both
+ * read a day off the *same* lane seating, so dot _i_ and lane _i_ are one event.
+ */
+class LaneEventsTest {
+
+    private val zone = TimeZone.UTC
+    private val jul26 = YearMonth(2026, Month.JULY)
+
+    /** July 2026 starts on a Wednesday, so this row — Jul 6–12 — sits wholly inside it. */
+    private fun rowOfJuly6(events: List<EventInstance>) =
+        layoutMonthWeeks(jul26, DayOfWeek.MONDAY, events, zone)[1]
+
+    private fun allDay(from: LocalDate, toInclusive: LocalDate, id: Long, color: Int = BLUE) =
+        EventInstance(
+            instanceId = id,
+            eventId = id,
+            calendarId = 1L,
+            title = "A$id",
+            start = from.atTime(0, 0).toInstant(zone),
+            end = toInclusive.plus(1, DateTimeUnit.DAY).atTime(0, 0).toInstant(zone),
+            isAllDay = true,
+            color = color,
+            location = null,
+        )
+
+    private fun timed(date: LocalDate, hour: Int, id: Long, color: Int = RED) = EventInstance(
+        instanceId = id,
+        eventId = id,
+        calendarId = 1L,
+        title = "T$id",
+        start = date.atTime(hour, 0).toInstant(zone),
+        end = date.atTime(hour + 1, 0).toInstant(zone),
+        isAllDay = false,
+        color = color,
+        location = null,
+    )
+
+    @Test
+    fun `a bar keeps its lane and the day's timed events fill what's left`() {
+        val bar = allDay(LocalDate(2026, 7, 7), LocalDate(2026, 7, 9), id = 1L)
+        val meeting = timed(LocalDate(2026, 7, 7), hour = 9, id = 2L)
+        val week = rowOfJuly6(listOf(bar, meeting))
+
+        // Jul 7 is column 1 of a Monday-anchored row starting Jul 6.
+        assertThat(week.laneEvents(col = 1, day = LocalDate(2026, 7, 7), laneCap = 3))
+            .containsExactly(bar, meeting)
+            .inOrder()
+    }
+
+    @Test
+    fun `a day the bar misses seats its own events from lane zero`() {
+        val bar = allDay(LocalDate(2026, 7, 7), LocalDate(2026, 7, 9), id = 1L)
+        val monday = timed(LocalDate(2026, 7, 6), hour = 9, id = 2L)
+        val week = rowOfJuly6(listOf(bar, monday))
+
+        assertThat(week.laneEvents(col = 0, day = LocalDate(2026, 7, 6), laneCap = 3))
+            .containsExactly(monday)
+    }
+
+    @Test
+    fun `a multi-day bar is seated on every day it covers`() {
+        val bar = allDay(LocalDate(2026, 7, 7), LocalDate(2026, 7, 9), id = 1L)
+        val week = rowOfJuly6(listOf(bar))
+
+        (1..3).forEach { col ->
+            val day = LocalDate(2026, 7, 6 + col)
+            assertThat(week.laneEvents(col, day, laneCap = 3)).containsExactly(bar)
+        }
+        assertThat(week.laneEvents(col = 4, day = LocalDate(2026, 7, 10), laneCap = 3)).isEmpty()
+    }
+
+    /** The bug the colour-gathered dots had: one dot for two events on one calendar. */
+    @Test
+    fun `events sharing a colour each keep their own lane`() {
+        val first = timed(LocalDate(2026, 7, 6), hour = 9, id = 1L, color = RED)
+        val second = timed(LocalDate(2026, 7, 6), hour = 14, id = 2L, color = RED)
+        val week = rowOfJuly6(listOf(first, second))
+
+        assertThat(week.laneEvents(col = 0, day = LocalDate(2026, 7, 6), laneCap = 3))
+            .containsExactly(first, second)
+            .inOrder()
+    }
+
+    @Test
+    fun `seating stops at the cap and leaves the rest to the overflow count`() {
+        val events = (0 until 5).map { timed(LocalDate(2026, 7, 6), hour = 8 + it, id = it + 1L) }
+        val week = rowOfJuly6(events)
+
+        val seated = week.laneEvents(col = 0, day = LocalDate(2026, 7, 6), laneCap = 3)
+        assertThat(seated).hasSize(3)
+        assertThat(seated).containsExactlyElementsIn(events.take(3)).inOrder()
+        assertThat(week.countByDay[LocalDate(2026, 7, 6)]!! - seated.size).isEqualTo(2)
+    }
+
+    /** A bar parked below the cap is out of view, so it takes no dot with it. */
+    @Test
+    fun `a bar beyond the cap is left out`() {
+        val bars = (0 until 4).map {
+            allDay(LocalDate(2026, 7, 6), LocalDate(2026, 7, 8), id = it + 1L)
+        }
+        val week = rowOfJuly6(bars)
+
+        val seated = week.laneEvents(col = 0, day = LocalDate(2026, 7, 6), laneCap = 3)
+        assertThat(seated).hasSize(3)
+        assertThat(week.spans.filter { it.lane >= 3 }.map { it.event })
+            .containsNoneIn(seated)
+    }
+
+    private companion object {
+        const val BLUE = 0xFF3366CC.toInt()
+        const val RED = 0xFFCC3333.toInt()
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/ui/month/MonthLayoutTest.kt

@@ -0,0 +1,220 @@
+package de.jeanlucmakiola.calendula.ui.month
+
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.domain.EventInstance
+import kotlinx.datetime.DateTimeUnit
+import kotlinx.datetime.DayOfWeek
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.YearMonth
+import kotlinx.datetime.atTime
+import kotlinx.datetime.plus
+import kotlinx.datetime.toInstant
+import kotlin.time.Instant
+import org.junit.jupiter.api.Test
+
+class MonthLayoutTest {
+
+    private val zone = TimeZone.UTC
+
+    // 2026-06-01 is a Monday, so a Monday-anchored June grid starts on the 1st.
+    private val jun = YearMonth(2026, kotlinx.datetime.Month.JUNE)
+    private val jun1 = LocalDate(2026, 6, 1)
+    private val jun8 = LocalDate(2026, 6, 8)
+    private val weekOf8th = (0..6).map { jun8.plus(it, DateTimeUnit.DAY) }
+
+    private fun at(date: LocalDate, h: Int, m: Int = 0): Instant =
+        date.atTime(h, m).toInstant(zone)
+
+    private fun timed(
+        date: LocalDate,
+        startHour: Int,
+        endHour: Int,
+        id: Long = 1L,
+        title: String = "E",
+    ) = EventInstance(
+        instanceId = id,
+        eventId = id,
+        calendarId = 1L,
+        title = title,
+        start = at(date, startHour),
+        end = at(date, endHour),
+        isAllDay = false,
+        color = 0xFF112233.toInt(),
+        location = null,
+    )
+
+    /** All-day events live at UTC midnights with an *exclusive* end. */
+    private fun allDay(
+        from: LocalDate,
+        toInclusive: LocalDate = from,
+        id: Long = 100L,
+        title: String = "A",
+    ) = EventInstance(
+        instanceId = id,
+        eventId = id,
+        calendarId = 1L,
+        title = title,
+        start = from.atTime(0, 0).toInstant(TimeZone.UTC),
+        end = toInclusive.plus(1, DateTimeUnit.DAY).atTime(0, 0).toInstant(TimeZone.UTC),
+        isAllDay = true,
+        color = 0xFF445566.toInt(),
+        location = null,
+    )
+
+    @Test
+    fun `startOfGridWeek snaps back to the configured week start`() {
+        val wed = LocalDate(2026, 6, 10)
+        assertThat(wed.startOfGridWeek(DayOfWeek.MONDAY)).isEqualTo(jun8)
+        assertThat(jun8.startOfGridWeek(DayOfWeek.MONDAY)).isEqualTo(jun8)
+        // A Sunday-anchored week containing the 10th starts on the 7th.
+        assertThat(wed.startOfGridWeek(DayOfWeek.SUNDAY)).isEqualTo(LocalDate(2026, 6, 7))
+    }
+
+    @Test
+    fun `monthGridRange always covers 42 days from the grid start`() {
+        val range = monthGridRange(jun, DayOfWeek.MONDAY, zone)
+        assertThat(range.start).isEqualTo(at(jun1, 0))
+        // 42 days inclusive → the last second of 2026-07-12.
+        assertThat(range.endInclusive)
+            .isEqualTo(LocalDate(2026, 7, 12).atTime(23, 59, 59).toInstant(zone))
+    }
+
+    @Test
+    fun `week count follows the month's shape rather than a fixed six rows`() {
+        // June 2026: starts Monday, 30 days → 5 rows.
+        assertThat(layoutMonthWeeks(jun, DayOfWeek.MONDAY, emptyList(), zone)).hasSize(5)
+        // August 2026: starts Saturday, 31 days → spills to 6 rows.
+        val aug = YearMonth(2026, kotlinx.datetime.Month.AUGUST)
+        assertThat(layoutMonthWeeks(aug, DayOfWeek.MONDAY, emptyList(), zone)).hasSize(6)
+        // February 2021: starts Monday, 28 days → exactly 4 rows.
+        val feb = YearMonth(2021, kotlinx.datetime.Month.FEBRUARY)
+        assertThat(layoutMonthWeeks(feb, DayOfWeek.MONDAY, emptyList(), zone)).hasSize(4)
+    }
+
+    @Test
+    fun `layoutMonthWeeks rows are contiguous and seven days wide`() {
+        val weeks = layoutMonthWeeks(jun, DayOfWeek.MONDAY, emptyList(), zone)
+        assertThat(weeks.first().days.first()).isEqualTo(jun1)
+        weeks.forEach { assertThat(it.days).hasSize(7) }
+        val allDays = weeks.flatMap { it.days }
+        allDays.zipWithNext { a, b -> assertThat(b).isEqualTo(a.plus(1, DateTimeUnit.DAY)) }
+    }
+
+    @Test
+    fun `a multi-day event becomes one span across its columns`() {
+        val ev = allDay(LocalDate(2026, 6, 10), LocalDate(2026, 6, 12))
+        val week = layoutCalendarWeek(weekOf8th, listOf(ev), zone)
+
+        assertThat(week.spans).hasSize(1)
+        val span = week.spans.single()
+        assertThat(span.startCol).isEqualTo(2) // Wednesday the 10th
+        assertThat(span.endCol).isEqualTo(4) // Friday the 12th
+        assertThat(span.lane).isEqualTo(0)
+        assertThat(span.continuesLeft).isFalse()
+        assertThat(span.continuesRight).isFalse()
+    }
+
+    @Test
+    fun `a span running past the row end is flagged as continuing`() {
+        // Saturday the 13th through Tuesday the 16th straddles the row boundary.
+        val ev = allDay(LocalDate(2026, 6, 13), LocalDate(2026, 6, 16))
+        val week = layoutCalendarWeek(weekOf8th, listOf(ev), zone)
+
+        val span = week.spans.single()
+        assertThat(span.startCol).isEqualTo(5)
+        assertThat(span.endCol).isEqualTo(6)
+        assertThat(span.continuesLeft).isFalse()
+        assertThat(span.continuesRight).isTrue()
+
+        // The following row picks it up with the flags mirrored.
+        val nextRow = layoutCalendarWeek(
+            weekOf8th.map { it.plus(7, DateTimeUnit.DAY) },
+            listOf(ev),
+            zone,
+        )
+        val tail = nextRow.spans.single()
+        assertThat(tail.startCol).isEqualTo(0)
+        assertThat(tail.endCol).isEqualTo(1)
+        assertThat(tail.continuesLeft).isTrue()
+        assertThat(tail.continuesRight).isFalse()
+    }
+
+    @Test
+    fun `overlapping spans are stacked on separate lanes`() {
+        val a = allDay(LocalDate(2026, 6, 9), LocalDate(2026, 6, 11), id = 1L)
+        val b = allDay(LocalDate(2026, 6, 10), LocalDate(2026, 6, 12), id = 2L)
+        val week = layoutCalendarWeek(weekOf8th, listOf(a, b), zone)
+
+        assertThat(week.spans.map { it.lane }).containsExactly(0, 1)
+    }
+
+    @Test
+    fun `single-day timed events stay pills and sort by start`() {
+        val late = timed(LocalDate(2026, 6, 10), 14, 15, id = 1L)
+        val early = timed(LocalDate(2026, 6, 10), 9, 10, id = 2L)
+        val week = layoutCalendarWeek(weekOf8th, listOf(late, early), zone)
+
+        assertThat(week.spans).isEmpty()
+        assertThat(week.timedByDay[LocalDate(2026, 6, 10)]?.map { it.instanceId })
+            .containsExactly(2L, 1L)
+            .inOrder()
+        assertThat(week.timedByDay[LocalDate(2026, 6, 11)]).isEmpty()
+    }
+
+    @Test
+    fun `countByDay totals bars and pills on each date`() {
+        val span = allDay(LocalDate(2026, 6, 10), LocalDate(2026, 6, 12), id = 1L)
+        val pill = timed(LocalDate(2026, 6, 10), 9, 10, id = 2L)
+        val week = layoutCalendarWeek(weekOf8th, listOf(span, pill), zone)
+
+        assertThat(week.countByDay[LocalDate(2026, 6, 10)]).isEqualTo(2)
+        assertThat(week.countByDay[LocalDate(2026, 6, 11)]).isEqualTo(1)
+        assertThat(week.countByDay[LocalDate(2026, 6, 13)]).isEqualTo(0)
+    }
+
+    @Test
+    fun `layoutMonthWeeks agrees with laying each row out on its own`() {
+        val events = listOf(
+            allDay(LocalDate(2026, 6, 10), LocalDate(2026, 6, 12), id = 1L),
+            timed(LocalDate(2026, 6, 18), 9, 10, id = 2L),
+        )
+        val weeks = layoutMonthWeeks(jun, DayOfWeek.MONDAY, events, zone)
+
+        weeks.forEach { row ->
+            assertThat(row).isEqualTo(layoutCalendarWeek(row.days, events, zone))
+        }
+    }
+
+    @Test
+    fun `instancesByDay puts all-day events first then orders by start`() {
+        val allDayEv = allDay(LocalDate(2026, 6, 10), id = 1L)
+        val late = timed(LocalDate(2026, 6, 10), 14, 15, id = 2L)
+        val early = timed(LocalDate(2026, 6, 10), 9, 10, id = 3L)
+
+        val byDay = instancesByDay(weekOf8th, listOf(late, early, allDayEv), zone)
+
+        assertThat(byDay.getValue(LocalDate(2026, 6, 10)).map { it.instanceId })
+            .containsExactly(1L, 3L, 2L)
+            .inOrder()
+    }
+
+    @Test
+    fun `instancesByDay repeats a multi-day event on every date it covers`() {
+        val ev = allDay(LocalDate(2026, 6, 10), LocalDate(2026, 6, 12))
+        val byDay = instancesByDay(weekOf8th, listOf(ev), zone)
+
+        assertThat(byDay.getValue(LocalDate(2026, 6, 9))).isEmpty()
+        assertThat(byDay.getValue(LocalDate(2026, 6, 10))).hasSize(1)
+        assertThat(byDay.getValue(LocalDate(2026, 6, 11))).hasSize(1)
+        assertThat(byDay.getValue(LocalDate(2026, 6, 12))).hasSize(1)
+        assertThat(byDay.getValue(LocalDate(2026, 6, 13))).isEmpty()
+    }
+
+    @Test
+    fun `instancesByDay covers every date in the grid, empty ones included`() {
+        val byDay = instancesByDay(weekOf8th, emptyList(), zone)
+        assertThat(byDay.keys).containsExactlyElementsIn(weekOf8th)
+        assertThat(byDay.values.flatten()).isEmpty()
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/widget/WidgetScaleTest.kt

@@ -0,0 +1,89 @@
+package de.jeanlucmakiola.calendula.widget
+
+import androidx.compose.ui.unit.DpSize
+import androidx.compose.ui.unit.dp
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+
+class WidgetScaleTest {
+
+    @Test
+    fun `the on-device calibration points map to their tiers`() {
+        // The two sizes measured on-device: the compact widget stays COMPACT (the
+        // baseline, unchanged), the full-width one steps up to LARGE — not XLARGE,
+        // which read as too big on a phone (#51).
+        assertThat(scaleFor(DpSize(222.dp, 270.dp))).isEqualTo(WidgetScale.COMPACT)
+        assertThat(scaleFor(DpSize(378.dp, 672.dp))).isEqualTo(WidgetScale.LARGE)
+    }
+
+    @Test
+    fun `a full-width widget at ordinary height still scales up`() {
+        // The regression the height cap used to cause: widening the widget without
+        // also making it unusually tall is *the* resize #51 reports, and it must
+        // reach the tier its width earned. Three cells tall is about 270dp.
+        assertThat(scaleFor(DpSize(378.dp, 270.dp))).isEqualTo(WidgetScale.LARGE)
+        assertThat(scaleFor(DpSize(300.dp, 270.dp))).isEqualTo(WidgetScale.REGULAR)
+        assertThat(scaleFor(DpSize(460.dp, 300.dp))).isEqualTo(WidgetScale.XLARGE)
+    }
+
+    @Test
+    fun `width buckets into the four tiers`() {
+        // Tall enough that the height cap never binds, isolating the width rule.
+        val h = 500.dp
+        assertThat(scaleFor(DpSize(180.dp, h))).isEqualTo(WidgetScale.COMPACT)
+        assertThat(scaleFor(DpSize(259.dp, h))).isEqualTo(WidgetScale.COMPACT)
+        assertThat(scaleFor(DpSize(260.dp, h))).isEqualTo(WidgetScale.REGULAR)
+        assertThat(scaleFor(DpSize(329.dp, h))).isEqualTo(WidgetScale.REGULAR)
+        assertThat(scaleFor(DpSize(330.dp, h))).isEqualTo(WidgetScale.LARGE)
+        assertThat(scaleFor(DpSize(419.dp, h))).isEqualTo(WidgetScale.LARGE)
+        assertThat(scaleFor(DpSize(420.dp, h))).isEqualTo(WidgetScale.XLARGE)
+        assertThat(scaleFor(DpSize(900.dp, h))).isEqualTo(WidgetScale.XLARGE)
+    }
+
+    @Test
+    fun `extra height never raises the tier`() {
+        // Height decides how many rows are visible, not how big they are: a tall,
+        // narrow widget wants more events, not bigger text.
+        assertThat(scaleFor(DpSize(222.dp, 200.dp))).isEqualTo(WidgetScale.COMPACT)
+        assertThat(scaleFor(DpSize(222.dp, 900.dp))).isEqualTo(WidgetScale.COMPACT)
+        assertThat(scaleFor(DpSize(300.dp, 900.dp))).isEqualTo(WidgetScale.REGULAR)
+    }
+
+    @Test
+    fun `only a genuinely squashed widget is stepped back down`() {
+        // Same (wide) width, shrinking height. The cap exists to stop oversized type
+        // surviving in a one- or two-row sliver — it must not fire at normal heights.
+        // Heights are gross; the cap works on height minus 60dp of chrome, so the
+        // LARGE floor is 190dp (130dp usable) and the REGULAR floor 130dp (70dp).
+        val wide = 378.dp
+        assertThat(scaleFor(DpSize(wide, 400.dp))).isEqualTo(WidgetScale.LARGE)
+        assertThat(scaleFor(DpSize(wide, 260.dp))).isEqualTo(WidgetScale.LARGE)
+        assertThat(scaleFor(DpSize(wide, 190.dp))).isEqualTo(WidgetScale.LARGE)
+        assertThat(scaleFor(DpSize(wide, 189.dp))).isEqualTo(WidgetScale.REGULAR)
+        assertThat(scaleFor(DpSize(wide, 130.dp))).isEqualTo(WidgetScale.REGULAR)
+        assertThat(scaleFor(DpSize(wide, 129.dp))).isEqualTo(WidgetScale.COMPACT)
+        // The provider's declared floor (minResizeWidth/Height = 110dp) is COMPACT.
+        assertThat(scaleFor(DpSize(110.dp, 110.dp))).isEqualTo(WidgetScale.COMPACT)
+    }
+
+    @Test
+    fun `the tier is monotonic in both axes`() {
+        // Growing a widget must never make its type smaller. Sweeps the whole
+        // plausible range rather than spot-checking, so a future threshold edit
+        // can't accidentally invert a step.
+        val widths = (110..900 step 7).map { it.dp }
+        val heights = (110..900 step 7).map { it.dp }
+        widths.forEach { w ->
+            heights.zipWithNext { shorter, taller ->
+                assertThat(scaleFor(DpSize(w, taller)))
+                    .isAtLeast(scaleFor(DpSize(w, shorter)))
+            }
+        }
+        heights.forEach { h ->
+            widths.zipWithNext { narrower, wider ->
+                assertThat(scaleFor(DpSize(wider, h)))
+                    .isAtLeast(scaleFor(DpSize(narrower, h)))
+            }
+        }
+    }
+}

app/src/test/java/de/jeanlucmakiola/calendula/widget/agenda/AgendaScaleTest.kt

@@ -0,0 +1,121 @@
+package de.jeanlucmakiola.calendula.widget.agenda
+
+import androidx.compose.ui.unit.DpSize
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.google.common.truth.Truth.assertThat
+import de.jeanlucmakiola.calendula.widget.WidgetScale
+import de.jeanlucmakiola.calendula.widget.scaleFor
+import org.junit.jupiter.api.Test
+
+class AgendaScaleTest {
+
+    // --- the "default size is unchanged" regression guard ---------------------
+
+    @Test
+    fun `every default placement width stays COMPACT`() {
+        // Ties the guarantee to the provider XML's declared 3-cell default rather
+        // than to one measured launcher: the whole band a default placement can
+        // land in must bucket to COMPACT, or a freshly placed widget silently
+        // changes appearance (#51). See AGENDA_DEFAULT_WIDTH_BAND.
+        val band = AGENDA_DEFAULT_WIDTH_BAND
+        var w = band.start
+        while (w <= band.endInclusive) {
+            assertThat(scaleFor(DpSize(w, 270.dp))).isEqualTo(WidgetScale.COMPACT)
+            w += 1.dp
+        }
+    }
+
+    @Test
+    fun `COMPACT metrics equal the widget's original constants`() {
+        // If this fails, a default-sized agenda widget no longer looks as it did.
+        val m = metricsFor(WidgetScale.COMPACT)
+        assertThat(m.title).isEqualTo(16.sp)
+        assertThat(m.dayHeader).isEqualTo(13.sp)
+        assertThat(m.eventTitle).isEqualTo(14.sp)
+        assertThat(m.eventTime).isEqualTo(12.sp)
+        assertThat(m.placeholder).isEqualTo(14.sp)
+        assertThat(m.message).isEqualTo(14.sp)
+        assertThat(m.stripeH).isEqualTo(36.dp)
+        assertThat(m.iconImage).isEqualTo(22.dp)
+        assertThat(m.iconBox).isEqualTo(40.dp)
+        assertThat(m.rowVPad).isEqualTo(4.dp)
+        assertThat(m.dayHeaderTopPad).isEqualTo(10.dp)
+    }
+
+    @Test
+    fun `the derived text indent matches the original hardcoded inset`() {
+        // TEXT_INDENT replaced a hardcoded 19dp; it must still resolve to 19dp or
+        // day headers and the placeholder line stop aligning with event titles.
+        assertThat(TEXT_INDENT).isEqualTo(19.dp)
+        assertThat(TEXT_INDENT).isEqualTo(ROW_H_PAD + STRIPE_WIDTH + STRIPE_GAP)
+    }
+
+    // --- the ramp ------------------------------------------------------------
+
+    @Test
+    fun `sizes are non-decreasing across the tiers`() {
+        val tiers = WidgetScale.entries.map(::metricsFor)
+
+        tiers.zipWithNext { small, big ->
+            assertThat(big.title.value).isAtLeast(small.title.value)
+            assertThat(big.dayHeader.value).isAtLeast(small.dayHeader.value)
+            assertThat(big.eventTitle.value).isAtLeast(small.eventTitle.value)
+            assertThat(big.eventTime.value).isAtLeast(small.eventTime.value)
+            assertThat(big.placeholder.value).isAtLeast(small.placeholder.value)
+            assertThat(big.message.value).isAtLeast(small.message.value)
+            assertThat(big.stripeH.value).isAtLeast(small.stripeH.value)
+            assertThat(big.iconImage.value).isAtLeast(small.iconImage.value)
+            assertThat(big.iconBox.value).isAtLeast(small.iconBox.value)
+            assertThat(big.rowVPad.value).isAtLeast(small.rowVPad.value)
+            assertThat(big.dayHeaderTopPad.value).isAtLeast(small.dayHeaderTopPad.value)
+        }
+    }
+
+    @Test
+    fun `the event title keeps its lead over the time line`() {
+        // The secondary line steps more slowly on purpose; if it ever caught up the
+        // row would lose its hierarchy.
+        WidgetScale.entries.map(::metricsFor).forEach { m ->
+            assertThat(m.eventTitle.value).isGreaterThan(m.eventTime.value)
+        }
+    }
+
+    @Test
+    fun `no tier grows type more than half again over the baseline`() {
+        // Guards against a future edit turning "more readable" into "absurd".
+        val base = metricsFor(WidgetScale.COMPACT)
+        val top = metricsFor(WidgetScale.XLARGE)
+        assertThat(top.title.value / base.title.value).isLessThan(1.5f)
+        assertThat(top.eventTitle.value / base.eventTitle.value).isLessThan(1.5f)
+    }
+
+    // --- font scale ----------------------------------------------------------
+
+    @Test
+    fun `the stripe tracks the system font scale`() {
+        // The stripe is Dp, the text beside it is sp: without this the two diverge
+        // at large accessibility font settings and the stripe under-runs the row.
+        val m = metricsFor(WidgetScale.COMPACT)
+        assertThat(m.scaledForFont(1f).stripeH).isEqualTo(36.dp)
+        assertThat(m.scaledForFont(1.3f).stripeH.value).isWithin(0.01f).of(46.8f)
+        assertThat(m.scaledForFont(0.85f).stripeH.value).isWithin(0.01f).of(30.6f)
+    }
+
+    @Test
+    fun `scaling for the default font scale changes nothing`() {
+        val m = metricsFor(WidgetScale.LARGE)
+        assertThat(m.scaledForFont(1f)).isSameInstanceAs(m)
+    }
+
+    @Test
+    fun `font scaling leaves the sp sizes alone`() {
+        // Glance already applies the font scale to sp; scaling them here too would
+        // double-count it.
+        val m = metricsFor(WidgetScale.REGULAR)
+        val scaled = m.scaledForFont(1.3f)
+        assertThat(scaled.title).isEqualTo(m.title)
+        assertThat(scaled.eventTitle).isEqualTo(m.eventTitle)
+        assertThat(scaled.rowVPad).isEqualTo(m.rowVPad)
+    }
+}

docs/ARCHITECTURE.md

@@ -99,6 +99,30 @@ on-device — see plan 03):
   UTC, so zones ahead of UTC can't leak an extra occurrence.
 - All-day events are normalised to UTC midnights with an exclusive end.
 
+### Event time zones
+
+`EventForm.timezone` is the zone its wall-clock times mean, and **null means
+"the device zone at save time"** — not "no zone". The data layer resolves it in
+`toWriteTimes` and always stamps a concrete `EVENT_TIMEZONE`, so an ordinary
+event behaves exactly as it did before the field existed.
+
+- A non-null value **pins** the event: it keeps tracking that zone's offset
+  across DST no matter where the device is. `toEditForm` only pins when the
+  stored zone differs from the device's, so the optional Time-zone field stays
+  hidden on ordinary events and reveals itself (via `populatedFields`) on
+  foreign-zone ones.
+- A pinned event is prefilled **in its own zone**, so the form shows the
+  wall-clock the event means rather than the device's rendering of it.
+- A zone change counts as a **time change** even with the wall-clock untouched
+  (same 09:00 elsewhere is a different instant), so `buildEventUpdateValues`
+  includes it in `timesChanged` and rewrites `DTSTART`.
+- **All-day events never carry a zone.** They're date-anchored — the UTC
+  midnights above are an anchor, not a location — so the field is withheld from
+  the form entirely and `toWriteTimes` forces `"UTC"` regardless.
+
+Still device-zone-relative, and knowingly so: `RRULE`'s `UNTIL` rendering and
+`AllDayReminderEncoding`'s offset (see its KDoc).
+
 ## Save conflicts
 
 No locking. `openForEdit` keeps an `EditSnapshot` — the prefilled form

fastlane/metadata/android/en-US/changelogs/21401.txt

@@ -0,0 +1,34 @@
+### Fixed
+- Deleting one occurrence of a repeating event no longer breaks the series.
+  Choosing "This event" when deleting an occurrence of a recurring event could
+  wipe out every *other* occurrence while leaving the one you deleted behind as
+  a stale, still-tappable ghost — and deleting it again brought the series back.
+  A single-occurrence delete now removes exactly that occurrence and leaves the
+  rest of the series untouched, and the deleted occurrence disappears from the
+  grid straight away. This holds on every kind of calendar, including the
+  on-device ones Calendula keeps for contact birthdays and anniversaries, where
+  the series is a yearly repeat. Thanks to @moonj for the report ([#47]).
+- Tapping an event in a third-party widget opens it in Calendula. v2.13.1 taught
+  Calendula to answer the "new event" hand-off from other apps and widgets; now
+  it also answers the "open this event" one, so tapping an existing event in a
+  widget such as Todo Agenda offers Calendula and lands on that event's details.
+  Thanks to @bushrang3r for the report ([#48]).
+- Events created from other apps get your default reminder. An event handed over
+  by another app or widget — Google Maps' "add to calendar", the Todo Agenda
+  widget's "+" — opened with no reminder at all, ignoring the default set in
+  Settings. It now starts with your default reminder, the same as an event you
+  create in Calendula. An event opened from an `.ics` file is treated differently,
+  because the file has its own say: Calendula keeps whatever reminders it carries
+  (including none at all) and asks you once whether to apply your default instead
+  — it never quietly overrides the file. If you have no default set, it doesn't
+  ask ([#49]).
+- A tidy colour picker on CalDAV calendars. For calendars synced by a CalDAV
+  app (such as DAVx5), the event colour picker showed every colour the account
+  publishes — nearly 150 swatches in alphabetical order, many of them
+  duplicates or near-identical shades. The picker now shows only visually
+  distinct colours, arranged as a rainbow; near-duplicate shades and the
+  washed-out neutrals are folded away so no two swatches look alike. Picked
+  colours still sync exactly as before, and calendars with hand-picked
+  palettes (like Google's) are unaffected. Thanks to @ptab for the report
+  ([#22]).
+

fastlane/metadata/android/en-US/changelogs/21500.txt

@@ -0,0 +1,74 @@
+### Added
+- Show raw calendar colours. Calendula normally softens each calendar and event
+  colour toward a theme-fitting pastel so harsh sync colours read well on both
+  light and dark; a new **Soften calendar colours** setting (Settings → Design,
+  on by default) lets you turn that off and paint the exact colours your calendar
+  source publishes — matching DAVx5/CalDAV and other calendar apps. Thanks to
+  @leonp5 for the report ([#36]).
+- Readable titles on dark event colours. An event bar's title now shows in white
+  on a dark colour and near-black on a light one, chosen automatically from the
+  colour's brightness, so a deep blue or purple event is legible at a glance in
+  the busy Week and Month views instead of dark-on-dark. This applies whether or
+  not colours are softened. Thanks to @ptab for the suggestion ([#21]).
+- A custom snooze duration. The **Snooze duration** setting (Settings →
+  Notifications) gains a **Custom…** option next to the minute presets: pick any
+  amount and switch between minutes and hours, so a snoozed reminder comes back
+  after exactly the delay you want instead of only a preset one ([#40]).
+- Move an event to another calendar. When editing an existing event, the
+  calendar row is now tappable — pick a different calendar and saving moves the
+  event across, instead of having to delete it and recreate it elsewhere.
+  Recurring series move as a whole, keeping their individually-edited and
+  cancelled occurrences, and any reminders and guests come along too. A calendar
+  can't simply be reassigned underneath an event, so Calendula recreates it on
+  the target and removes the original — the same approach other calendar apps
+  take. Thanks to @prismplex for the suggestion ([#39]).
+- Open an event straight into the edit form from another app. Calendula already
+  answered the "new event" and "open this event" hand-offs from other apps and
+  widgets; it now also answers the "edit this event" one, so an assistant, task
+  app, or widget can send an existing event to Calendula and land on its edit
+  screen rather than the read-only details. A hand-off with no event attached
+  opens the same prefilled create form as "new event". Calendula also recognises
+  a couple more file labels the same calendar data arrives under (`.vcs`
+  vCalendar files and the `application/ics` type), so opening or sharing those
+  into Calendula works too.
+- Keep today at the top of the agenda. A new **Always show today** setting
+  (Settings → Agenda, on by default) anchors today as the first entry in both the
+  Agenda screen and its home-screen widget even once nothing is left today —
+  under today's header a "No more events today" note appears — so the first
+  events you see are clearly today's rather than a future day's. Turn it off to
+  keep the agenda purely upcoming. Thanks to @ptab for the suggestion ([#35]).
+- Duplicate an event. The event details now carry a **Duplicate** action that
+  opens the editor pre-filled with a copy of the event as a new, unsaved one, so
+  a one-off like a shift or an appointment can be recreated by just changing the
+  day and time instead of re-typing every field. The copy keeps the original's
+  time, and its title, location, notes, colour, guests and reminders come along;
+  it's saved as its own single event (any repeat is left off — add one in the
+  editor if you want it). Duplicate works from read-only calendars too, dropping
+  the copy into a writable one. Thanks to @internet-rando for the suggestion
+  ([#52]).
+- French and Polish, in early form. Calendula has started speaking French and
+  Polish, both contributed as community translations through
+  [Calendula's Weblate](https://weblate.dev.jeanlucmakiola.de/projects/calendula/).
+  They are partway there, so untranslated parts still show in English until they
+  fill out — you can already pick either under Settings → Language or in Android's
+  per-app language settings. Thanks to Thomas Tref (French) and Bazyli Cyran
+  (Polish) for getting them started; help finishing them is very welcome.
+
+### Fixed
+- Reminders for events on another day no longer read as if they were today. A
+  reminder fired ahead of time — say, the day before — used to show only the
+  event's time, making it look like it was happening now. The notification now
+  says which day: **Tomorrow** or **Yesterday**, the weekday for another day this
+  week, or the date for anything further out. Thanks to @moonj for the report
+  ([#46]).
+- Agenda dates now read in your locale's format. The agenda's range bar and its
+  day headers used a fixed day-month-year layout — and the range span even mixed
+  two orders (e.g. "15 Jul – Aug 13, 2026") — instead of following your language's
+  conventions. Dates across the agenda and its widget now use your locale's own
+  field order, matching the rest of the app. The range bar also no longer repeats
+  the range's name from the selector button beside it, showing just the dates.
+- Calendar gutters line up with the menu button. The Month view's week-number
+  column, and the Week and Day views' hour labels, sat a few pixels left of the
+  hamburger menu above them; they now line up with it. In Month view the day
+  cells also sit squarely under their weekday letters.
+

fastlane/metadata/android/en-US/changelogs/21600.txt

@@ -0,0 +1,37 @@
+### Added
+- Give an event its own time zone. A new Time zone field (under "more fields" in
+  the event form) pins an event to a specific zone, so a call set for 8:00 AM in
+  New York stays 8:00 AM in New York wherever you open it, and keeps tracking
+  that zone across daylight-saving changes. The form shows the local equivalent
+  under the times, and the event's details keep your local time first with the
+  original noted beneath. Pick a zone from a searchable full-screen picker — by
+  city, IANA id, or abbreviation like "CEST". All-day events stay date-anchored
+  and carry no zone ([#31]).
+- Put the "jump to today" button in the toolbar. A new Today button in toolbar
+  setting (Settings → Appearance, off by default) swaps the floating corner
+  button for a permanent today icon in the top bar — always there, matching the
+  familiar calendar-app pattern. Leave it off to keep the floating button ([#60]).
+- Show the app as "Calendar" in your launcher. A new App name setting
+  (Settings → Appearance) switches the launcher label from "Calendula" to the
+  generic "Calendar" for anyone who prefers it — handy on launchers that can't
+  rename apps themselves. Only the launcher name changes; your home-screen icon
+  may move to a new spot after switching ([#44]).
+
+### Changed
+- Dates in the Month, Week and Day title bars now follow your language and
+  region instead of one hardcoded layout. Every date was rendered in a fixed
+  German-style order with a trailing dot on the day number, whatever your
+  settings: US English showed "Fri, 17. Jul 2026" where it should read
+  "Fri, Jul 17". The Agenda view already formatted correctly, so the two
+  disagreed about the same date. All four views now share one formatter, and the
+  day/month order, the separators and the ordinal all come from your locale —
+  so English-in-Germany reads "Fri, 17 Jul" and English-in-the-US "Fri, Jul 17",
+  each correct for where you are ([#60]).
+- The title bar drops the year while you're in the current one — "July" rather
+  than "July 2026". The year reappears the moment you page out of the current
+  year, which is when it tells you something you didn't already know.
+- The Week view's title now names the month instead of spelling out the day range.
+  "24. Jun – 31. Jun" restated the day numbers already printed in the column
+  headers right below it, in the widest string in the bar. A week that straddles
+  two months keeps the outgoing month until it is fully gone ([#60]).
+