refactor(theme,motion): draw identity (theme + content transitions) from floret-kit

Adopt floret-kit's identity module, shared with Agendula:

- CalendulaTheme becomes a thin wrapper over the kit's FloretExpressiveTheme
  (dynamic colour, system light/dark, standard motion scheme). Calendula keeps
  its identity locally: the seed-derived CalendulaLightFallback/DarkFallback and
  CalendulaTypography. No call-site changes — CalendulaTheme keeps its name.
- The generic content transitions move to identity: calendarExpandEnter ->
  expandEnter, calendarCollapseExit -> collapseExit, calendarItemEnter ->
  itemEnter, calendarAnimateItem -> animateItemMotion, calendarFadeThrough ->
  fadeThrough, plus Modifier.predictiveBack and rememberReduceMotion (same
  names). Call sites across the screens repointed to floret.identity.
- CalendarTransitions.kt keeps only what's genuinely calendar-specific: the
  directional month/week/day slide (calendarSlideTransition) and its specs
  (rememberCalendarSlideSpec / rememberCalendarFadeSpec).

Compile + unit tests + lintDebug green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/build.gradle.kts

@@ -163,6 +163,7 @@ dependencies {
     implementation("de.jeanlucmakiola.floret:core-locale")
     implementation("de.jeanlucmakiola.floret:core-crash")
     implementation("de.jeanlucmakiola.floret:core-reminders")
+    implementation("de.jeanlucmakiola.floret:identity")
     implementation(libs.kotlinx.coroutines.core)
 
     debugImplementation(libs.androidx.ui.tooling)

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

@@ -24,7 +24,7 @@ import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.ui.agenda.AgendaScreen
 import de.jeanlucmakiola.calendula.ui.calendars.CalendarsScreen
-import de.jeanlucmakiola.calendula.ui.common.calendarFadeThrough
+import de.jeanlucmakiola.floret.identity.fadeThrough
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.drillToDay
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarSlideSpec
@@ -244,7 +244,7 @@ fun CalendarHost(
         // Switching between the peer views (month/week/day/agenda) is lateral
         // navigation, so it fades through rather than sliding — paging *within* a
         // view keeps the directional slide. AnimatedContent keyed on the view type.
-        val viewSwitch = calendarFadeThrough()
+        val viewSwitch = fadeThrough()
         AnimatedContent(
             targetState = view,
             transitionSpec = { viewSwitch },

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

@@ -56,7 +56,7 @@ import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.ui.common.AgendaRangePicker
 import de.jeanlucmakiola.calendula.ui.common.agendaRangeLabel
-import de.jeanlucmakiola.calendula.ui.common.calendarAnimateItem
+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.CalendarFailure
@@ -316,7 +316,7 @@ private fun AgendaList(
                 AgendaEventRow(
                     event = event,
                     position = positionOf(index, day.events.size),
-                    modifier = calendarAnimateItem(),
+                    modifier = animateItemMotion(),
                     onClick = { onEventClick(event) },
                 )
             }

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

@@ -98,9 +98,9 @@ import de.jeanlucmakiola.calendula.ui.common.CALENDAR_COLOR_PALETTE
 import de.jeanlucmakiola.calendula.ui.common.CalendarColorChip
 import de.jeanlucmakiola.calendula.ui.common.DialogAmountField
 import de.jeanlucmakiola.calendula.ui.common.DialogUnitDropdown
-import de.jeanlucmakiola.calendula.ui.common.calendarCollapseExit
-import de.jeanlucmakiola.calendula.ui.common.calendarExpandEnter
-import de.jeanlucmakiola.calendula.ui.common.predictiveBack
+import de.jeanlucmakiola.floret.identity.collapseExit
+import de.jeanlucmakiola.floret.identity.expandEnter
+import de.jeanlucmakiola.floret.identity.predictiveBack
 import de.jeanlucmakiola.calendula.ui.common.CollapsingScaffold
 import de.jeanlucmakiola.calendula.ui.common.ColorSwatchRow
 import de.jeanlucmakiola.calendula.ui.common.GroupedRow
@@ -664,8 +664,8 @@ private fun CalendarGroup(
     )
     AnimatedVisibility(
         visible = expanded,
-        enter = calendarExpandEnter(),
-        exit = calendarCollapseExit(),
+        enter = expandEnter(),
+        exit = collapseExit(),
     ) {
         Column(content = body)
     }

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

@@ -1,56 +1,26 @@
 package de.jeanlucmakiola.calendula.ui.common
 
-import android.provider.Settings
-import androidx.activity.BackEventCompat
-import androidx.activity.compose.PredictiveBackHandler
 import androidx.compose.animation.ContentTransform
-import androidx.compose.animation.EnterTransition
-import androidx.compose.animation.ExitTransition
-import androidx.compose.animation.core.Animatable
-import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.animation.core.FiniteAnimationSpec
-import androidx.compose.animation.expandVertically
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
-import androidx.compose.animation.shrinkVertically
 import androidx.compose.animation.slideInHorizontally
-import androidx.compose.animation.slideInVertically
 import androidx.compose.animation.slideOutHorizontally
 import androidx.compose.animation.togetherWith
-import androidx.compose.foundation.lazy.LazyItemScope
-import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.graphicsLayer
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.IntOffset
-import androidx.compose.ui.unit.dp
-import kotlin.coroutines.cancellation.CancellationException
 
 /**
- * Whether the user has asked the system to remove animations (Settings →
- * Accessibility → "Remove animations", which sets the global animator duration
- * scale to 0). Compose animations do *not* honour this platform flag on their
- * own, so the shared motion helpers in this file check it and fall back to a
- * quick cross-fade — opacity only, no spatial movement — to respect the
- * vestibular intent of the setting while keeping state changes legible.
- *
- * Read once at composition; the scale changes rarely and only takes full effect
- * after a process restart anyway.
+ * Calendar-specific motion. The family's generic content transitions — section
+ * expand/collapse, item reveal, list relayout, cross-fade, predictive-back, and
+ * the reduce-motion check — now live in floret-kit's identity module
+ * (`expandEnter`, `collapseExit`, `itemEnter`, `animateItemMotion`,
+ * `fadeThrough`, `Modifier.predictiveBack`, `rememberReduceMotion`). What stays
+ * here is only what's specific to paging the calendar grid: the directional
+ * month/week/day slide and the specs that feed it.
  */
-@Composable
-fun rememberReduceMotion(): Boolean {
-    val resolver = LocalContext.current.contentResolver
-    return remember(resolver) {
-        Settings.Global.getFloat(resolver, Settings.Global.ANIMATOR_DURATION_SCALE, 1f) == 0f
-    }
-}
 
 /**
  * The M3 Expressive spatial spring used for the month/week slide: the *fast*
@@ -98,128 +68,3 @@ fun calendarSlideTransition(
     return slideInHorizontally(spec) { w -> dir * w }
         .togetherWith(slideOutHorizontally(spec) { w -> -dir * w })
 }
-
-/**
- * Cross-fade [ContentTransform] for swapping whole screens or content blocks
- * where there is no meaningful spatial direction (e.g. onboarding gates). Pure
- * opacity, so it doubles as its own reduced-motion form.
- */
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
-@Composable
-fun calendarFadeThrough(): ContentTransform {
-    val fade = MaterialTheme.motionScheme.fastEffectsSpec<Float>()
-    return fadeIn(fade).togetherWith(fadeOut(fade))
-}
-
-/**
- * Enter transition for a vertically-revealed section (expandable rows, inline
- * fields): height grows from the top while fading in. Under reduced motion the
- * height growth is dropped, leaving a quick fade.
- *
- * Pair with [calendarCollapseExit]. This is the promoted form of the pattern
- * originally inlined in the event edit form, so every expandable surface in the
- * app reveals the same way.
- */
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
-@Composable
-fun calendarExpandEnter(reduceMotion: Boolean = rememberReduceMotion()): EnterTransition {
-    val fade = fadeIn(MaterialTheme.motionScheme.fastEffectsSpec())
-    return if (reduceMotion) {
-        fade
-    } else {
-        expandVertically(MaterialTheme.motionScheme.fastSpatialSpec()) + fade
-    }
-}
-
-/** Exit counterpart to [calendarExpandEnter]: shrink + fade, or fade only under reduced motion. */
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
-@Composable
-fun calendarCollapseExit(reduceMotion: Boolean = rememberReduceMotion()): ExitTransition {
-    val fade = fadeOut(MaterialTheme.motionScheme.fastEffectsSpec())
-    return if (reduceMotion) {
-        fade
-    } else {
-        shrinkVertically(MaterialTheme.motionScheme.fastSpatialSpec()) + fade
-    }
-}
-
-/**
- * Enter transition for content revealed by an `AnimatedContent`/`AnimatedVisibility`
- * (e.g. search results once a query resolves): a gentle rise + fade. Reduced
- * motion keeps the fade only.
- */
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
-@Composable
-fun calendarItemEnter(reduceMotion: Boolean = rememberReduceMotion()): EnterTransition {
-    val fade = fadeIn(MaterialTheme.motionScheme.fastEffectsSpec())
-    return if (reduceMotion) {
-        fade
-    } else {
-        fade + slideInVertically(MaterialTheme.motionScheme.fastSpatialSpec()) { h -> h / 6 }
-    }
-}
-
-/**
- * Shared [LazyItemScope.animateItem] wiring so list rows fade/relocate with the
- * app's motion scheme instead of Compose's default spring. Returns a bare
- * [Modifier] under reduced motion so rows snap into place. Requires the list to
- * supply stable item keys.
- */
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
-@Composable
-fun LazyItemScope.calendarAnimateItem(reduceMotion: Boolean = rememberReduceMotion()): Modifier =
-    if (reduceMotion) {
-        Modifier
-    } else {
-        Modifier.animateItem(
-            fadeInSpec = MaterialTheme.motionScheme.fastEffectsSpec(),
-            placementSpec = MaterialTheme.motionScheme.fastSpatialSpec(),
-            fadeOutSpec = MaterialTheme.motionScheme.fastEffectsSpec(),
-        )
-    }
-
-/**
- * Standard Android predictive-back transform for a full-screen overlay: as the
- * back gesture is dragged, the surface scales toward ~90%, shifts toward the
- * swiped edge and rounds its corners, previewing what's behind. Completing the
- * gesture invokes [onBack]; cancelling springs it back.
- *
- * A drop-in replacement for a screen's own `BackHandler(onBack)` — register it
- * once and apply the returned [Modifier] to that screen's root so the preview
- * respects the same back semantics. Under reduced motion the visual preview is
- * skipped (the back still works); on API < 34 the system delivers no progress,
- * so it degrades to a plain back.
- */
-@Composable
-fun Modifier.predictiveBack(
-    onBack: () -> Unit,
-    enabled: Boolean = true,
-    reduceMotion: Boolean = rememberReduceMotion(),
-): Modifier {
-    val progress = remember { Animatable(0f) }
-    var fromLeftEdge by remember { mutableStateOf(true) }
-
-    PredictiveBackHandler(enabled = enabled) { events ->
-        try {
-            events.collect { event ->
-                fromLeftEdge = event.swipeEdge == BackEventCompat.EDGE_LEFT
-                progress.snapTo(FastOutSlowInEasing.transform(event.progress))
-            }
-            onBack()
-            progress.snapTo(0f)
-        } catch (_: CancellationException) {
-            progress.animateTo(0f)
-        }
-    }
-
-    if (reduceMotion) return this
-    return this.graphicsLayer {
-        val p = progress.value
-        val scale = 1f - 0.1f * p
-        scaleX = scale
-        scaleY = scale
-        translationX = (if (fromLeftEdge) 1f else -1f) * 24.dp.toPx() * p
-        shape = RoundedCornerShape(32.dp.toPx() * p)
-        clip = p > 0f
-    }
-}

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

@@ -40,6 +40,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import de.jeanlucmakiola.calendula.R
+import de.jeanlucmakiola.floret.identity.predictiveBack
 
 /**
  * Position of a row within a grouped list, after the Android-15 settings

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

@@ -39,6 +39,8 @@ import androidx.compose.ui.window.DialogProperties
 import androidx.compose.ui.window.DialogWindowProvider
 import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.ui.agenda.AgendaRange
+import de.jeanlucmakiola.floret.identity.collapseExit
+import de.jeanlucmakiola.floret.identity.expandEnter
 import de.jeanlucmakiola.floret.reminders.ReminderOverride
 import de.jeanlucmakiola.floret.reminders.ReminderUnit
 import de.jeanlucmakiola.floret.reminders.decomposeReminderMinutes
@@ -182,8 +184,8 @@ fun ReminderDefaultPicker(
         )
         AnimatedVisibility(
             visible = customExpanded,
-            enter = calendarExpandEnter(),
-            exit = calendarCollapseExit(),
+            enter = expandEnter(),
+            exit = collapseExit(),
         ) {
             CustomReminderEditor(
                 amountText = amountText,
@@ -360,8 +362,8 @@ fun AgendaRangePicker(
         )
         AnimatedVisibility(
             visible = customExpanded,
-            enter = calendarExpandEnter(),
-            exit = calendarCollapseExit(),
+            enter = expandEnter(),
+            exit = collapseExit(),
         ) {
             CustomDaysEditor(
                 amountText = amountText,

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

@@ -76,7 +76,7 @@ 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.rememberReduceMotion
+import de.jeanlucmakiola.floret.identity.rememberReduceMotion
 import de.jeanlucmakiola.calendula.ui.common.next
 import de.jeanlucmakiola.calendula.ui.common.pastelize
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarSlideSpec

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

@@ -91,7 +91,7 @@ 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.ui.common.predictiveBack
+import de.jeanlucmakiola.floret.identity.predictiveBack
 import de.jeanlucmakiola.calendula.ui.common.CalendarFailure
 import de.jeanlucmakiola.calendula.ui.common.OptionCard
 import de.jeanlucmakiola.calendula.ui.common.currentLocale

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

@@ -114,9 +114,9 @@ import de.jeanlucmakiola.calendula.domain.RecurringWriteScope
 import de.jeanlucmakiola.calendula.domain.SimpleRecurrence
 import de.jeanlucmakiola.calendula.domain.parseSimpleRecurrence
 import de.jeanlucmakiola.calendula.domain.toRRule
-import de.jeanlucmakiola.calendula.ui.common.calendarCollapseExit
-import de.jeanlucmakiola.calendula.ui.common.calendarExpandEnter
-import de.jeanlucmakiola.calendula.ui.common.predictiveBack
+import de.jeanlucmakiola.floret.identity.collapseExit
+import de.jeanlucmakiola.floret.identity.expandEnter
+import de.jeanlucmakiola.floret.identity.predictiveBack
 import de.jeanlucmakiola.calendula.ui.common.CALENDAR_COLOR_PALETTE
 import de.jeanlucmakiola.calendula.ui.common.CalendarDatePickerDialog
 import de.jeanlucmakiola.calendula.ui.common.ColorSwatchRow
@@ -416,8 +416,8 @@ private fun OptionalFormSection(
 ) {
     AnimatedVisibility(
         visible = visible,
-        enter = calendarExpandEnter(),
-        exit = calendarCollapseExit(),
+        enter = expandEnter(),
+        exit = collapseExit(),
     ) {
         Column(modifier = Modifier.fillMaxWidth(), content = content)
     }

app/src/main/java/de/jeanlucmakiola/calendula/ui/imports/ImportScreen.kt

@@ -38,7 +38,7 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.calendula.R
 import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.ics.IcsParseWarning
-import de.jeanlucmakiola.calendula.ui.common.predictiveBack
+import de.jeanlucmakiola.floret.identity.predictiveBack
 import de.jeanlucmakiola.calendula.ui.common.OptionCard
 
 /**

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

@@ -67,7 +67,7 @@ import de.jeanlucmakiola.calendula.ui.common.CalendarView
 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.rememberReduceMotion
+import de.jeanlucmakiola.floret.identity.rememberReduceMotion
 import de.jeanlucmakiola.calendula.ui.common.currentLocale
 import de.jeanlucmakiola.calendula.ui.common.rememberCalendarSlideSpec
 import de.jeanlucmakiola.calendula.ui.common.next

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

@@ -48,8 +48,8 @@ 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.calendarAnimateItem
-import de.jeanlucmakiola.calendula.ui.common.predictiveBack
+import de.jeanlucmakiola.floret.identity.animateItemMotion
+import de.jeanlucmakiola.floret.identity.predictiveBack
 import de.jeanlucmakiola.calendula.ui.common.GroupedRow
 import de.jeanlucmakiola.calendula.ui.common.InlineTextField
 import de.jeanlucmakiola.calendula.ui.common.Position
@@ -175,7 +175,7 @@ private fun SearchResults(
             SearchResultRow(
                 event = event,
                 position = positionOf(index, events.size),
-                modifier = calendarAnimateItem(),
+                modifier = animateItemMotion(),
                 onClick = { onEventClick(event) },
             )
         }

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

@@ -90,12 +90,12 @@ import de.jeanlucmakiola.calendula.data.prefs.TimeFormatPref
 import de.jeanlucmakiola.calendula.data.prefs.WeekStartPref
 import de.jeanlucmakiola.calendula.domain.EventFormField
 import de.jeanlucmakiola.calendula.qs.NewEventTileService
-import de.jeanlucmakiola.calendula.ui.common.calendarCollapseExit
+import de.jeanlucmakiola.floret.identity.collapseExit
 import de.jeanlucmakiola.floret.crash.CrashReportDialog
 import de.jeanlucmakiola.floret.crash.CrashReporter
 import de.jeanlucmakiola.floret.crash.openIssueTracker
 import de.jeanlucmakiola.floret.crash.submitCrashReport
-import de.jeanlucmakiola.calendula.ui.common.calendarExpandEnter
+import de.jeanlucmakiola.floret.identity.expandEnter
 import de.jeanlucmakiola.calendula.ui.common.AgendaRangePicker
 import de.jeanlucmakiola.calendula.ui.common.agendaRangeLabel
 import de.jeanlucmakiola.calendula.ui.common.CollapsingScaffold
@@ -841,8 +841,8 @@ private fun NotificationsScreen(
             )
             AnimatedVisibility(
                 visible = calendarSectionExpanded,
-                enter = calendarExpandEnter(),
-                exit = calendarCollapseExit(),
+                enter = expandEnter(),
+                exit = collapseExit(),
             ) {
                 Column {
                     state.writableCalendars.forEach { calendar ->
@@ -871,8 +871,8 @@ private fun NotificationsScreen(
                         )
                         AnimatedVisibility(
                             visible = expanded,
-                            enter = calendarExpandEnter(),
-                            exit = calendarCollapseExit(),
+                            enter = expandEnter(),
+                            exit = collapseExit(),
                         ) {
                             Column {
                                 val timed = state.perCalendarReminderOverride.choiceFor(calendar.id)

app/src/main/java/de/jeanlucmakiola/calendula/ui/theme/Theme.kt

@@ -1,49 +1,31 @@
 package de.jeanlucmakiola.calendula.ui.theme
 
-import android.os.Build
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
-import androidx.compose.material3.MaterialExpressiveTheme
-import androidx.compose.material3.MotionScheme
-import androidx.compose.material3.dynamicDarkColorScheme
-import androidx.compose.material3.dynamicLightColorScheme
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.platform.LocalContext
+import de.jeanlucmakiola.floret.identity.FloretExpressiveTheme
 
 /**
- * App theme. Honors:
- *   - System light/dark.
- *   - Dynamic Color on API 31+, else falls back to the hand-tuned scheme
- *     derived from [CalendulaSeed].
+ * Calendula's theme: the family's [FloretExpressiveTheme] machinery — dynamic
+ * colour on API 31+, system light/dark, and the **standard** motion scheme
+ * (spring choreography without the overshoot) — fed with Calendula's own
+ * identity: its seed-derived fallback schemes ([CalendulaLightFallback] /
+ * [CalendulaDarkFallback]) and [CalendulaTypography].
  *
- * The Settings screen (later) can override useDynamicColor and themePreference,
- * but the V1 foundation just follows the system.
+ * The mechanics live in floret-kit's identity module; the look stays here, so a
+ * sibling app reuses the same theming without inheriting Calendula's palette.
  */
-@OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
 fun CalendulaTheme(
     darkTheme: Boolean = isSystemInDarkTheme(),
     dynamicColor: Boolean = true,
     content: @Composable () -> Unit,
 ) {
-    val colorScheme = when {
-        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
-            val ctx = LocalContext.current
-            if (darkTheme) dynamicDarkColorScheme(ctx) else dynamicLightColorScheme(ctx)
-        }
-        darkTheme -> CalendulaDarkFallback
-        else -> CalendulaLightFallback
-    }
-
-    // MaterialExpressiveTheme routes all component + custom motion through
-    // MaterialTheme.motionScheme (switches, chips, pickers, calendar slide,
-    // FAB, field reveal). The STANDARD scheme is a deliberate choice over
-    // expressive(): same spring choreography, but without the overshoot —
-    // the bouncy variant felt overdone in review (2026-06-11).
-    MaterialExpressiveTheme(
-        colorScheme = colorScheme,
+    FloretExpressiveTheme(
+        lightScheme = CalendulaLightFallback,
+        darkScheme = CalendulaDarkFallback,
+        darkTheme = darkTheme,
+        dynamicColor = dynamicColor,
         typography = CalendulaTypography,
-        motionScheme = MotionScheme.standard(),
         content = content,
     )
 }

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

@@ -81,7 +81,7 @@ 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.rememberReduceMotion
+import de.jeanlucmakiola.floret.identity.rememberReduceMotion
 import de.jeanlucmakiola.calendula.ui.common.currentLocale
 import de.jeanlucmakiola.calendula.ui.common.LocalUse24HourFormat
 import de.jeanlucmakiola.calendula.ui.common.LocalShowHourLines