diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5da84d4..f30c64a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   the title now simply runs to the edge of its chip — a few more letters per
   cell, which is often the difference between two events you can tell apart and
   two you can't ([#164]).
+- The calendar titles now shorten instead of being cut off. When the full month
+  name doesn't fit the top bar, the month and week views fall back to its
+  three-letter form and the day view drops the weekday, rather than trailing off
+  mid-word at large font sizes. The view switcher, the title and the agenda's
+  range bar also line up with the grid underneath them ([#165]).
 
 ## [2.19.1] — 2026-08-11
 
@@ -1422,3 +1427,4 @@ automatically, with zero telemetry and no internet permission.
 [#163]: https://codeberg.org/jlmakiola/calendula/issues/163
 [#173]: https://codeberg.org/jlmakiola/calendula/issues/173
 [#164]: https://codeberg.org/jlmakiola/calendula/issues/164
+[#165]: https://codeberg.org/jlmakiola/calendula/issues/165
diff --git a/app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaScreen.kt b/app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaScreen.kt
index b7a18ba..7f07d0b 100644
--- a/app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaScreen.kt
+++ b/app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaScreen.kt
@@ -43,6 +43,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
@@ -51,6 +52,8 @@ import de.jeanlucmakiola.calendula.data.prefs.PastEventDisplay
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.hasEnded
 import de.jeanlucmakiola.calendula.ui.common.AgendaRangePicker
+import de.jeanlucmakiola.calendula.ui.common.AppBarSpacing
+import de.jeanlucmakiola.calendula.ui.common.QuickSwitchConfig
 import de.jeanlucmakiola.calendula.ui.common.agendaRangeLabel
 import de.jeanlucmakiola.floret.identity.animateItemMotion
 import de.jeanlucmakiola.calendula.ui.common.CalendarDrawer
@@ -160,13 +163,24 @@ fun AgendaScreen(
                 // One bar at the top: the "showing …" header on the left and the
                 // session range switcher on the right (one settings toggle).
                 successState?.takeIf { it.showRangeBar }?.let { s ->
+                    // end lines the selector up with whatever ends the top bar:
+                    // the view switcher's background, or — once #150 hides it —
+                    // the search icon's glyph.
+                    val selectorEnd = if (quickSwitchViews.size >= QuickSwitchConfig.MIN_CYCLE) {
+                        AppBarSpacing.Inset
+                    } else {
+                        AppBarSpacing.IconTrailingInset
+                    }
                     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 = 12.dp, top = 8.dp, bottom = 8.dp),
+                            .padding(
+                                start = RANGE_BAR_TEXT_INSET,
+                                end = selectorEnd,
+                                top = 8.dp,
+                                bottom = 8.dp,
+                            ),
                     ) {
                         AgendaRangeBanner(
                             range = s.range,
@@ -246,6 +260,9 @@ private fun AgendaRangePill(
     }
 }
 
+/** Optical start inset for the range bar's text, set against the title above it. */
+private val RANGE_BAR_TEXT_INSET = 28.dp
+
 /**
  * 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
@@ -419,9 +436,14 @@ private fun AgendaTopBar(
 ) {
     TopAppBar(
         title = {
+            // A plain label rather than a CalendarTitleButton, so it takes that
+            // one's inset and one-line clamp itself.
             Text(
                 text = stringResource(R.string.view_agenda),
                 style = MaterialTheme.typography.titleLarge,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+                modifier = Modifier.padding(start = AppBarSpacing.TitleInset),
             )
         },
         navigationIcon = {
@@ -444,7 +466,6 @@ private fun AgendaTopBar(
                 current = selectedView,
                 cycle = quickSwitchViews,
                 onCycle = onCycleView,
-                modifier = Modifier.padding(end = 8.dp),
             )
         },
         colors = TopAppBarDefaults.topAppBarColors(
diff --git a/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/AppBarSpacing.kt b/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/AppBarSpacing.kt
new file mode 100644
index 0000000..3c1e85f
--- /dev/null
+++ b/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/AppBarSpacing.kt
@@ -0,0 +1,40 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import androidx.compose.ui.unit.dp
+
+/**
+ * Trailing-edge and title spacing shared by the four calendar app bars (#165).
+ *
+ * Only the trailing edge and the title's start are shared; the leading edge and
+ * the gaps between the action icons stay on M3's defaults, which derive both
+ * from the icon buttons' width.
+ */
+object AppBarSpacing {
+
+    /** Side inset shared by the bars' trailing edge and the month grid. */
+    val Inset = 8.dp
+
+    /**
+     * Start inset on the title, taking it clear of the navigation icon M3 places
+     * it flush against. Real padding rather than a negative offset, which would
+     * swallow taps meant for the menu button.
+     */
+    val TitleInset = 8.dp
+
+    /** M3's own padding around the actions row. */
+    internal val BarPadding = 4.dp
+
+    private val IconButtonSize = 48.dp
+
+    private val IconSize = 24.dp
+
+    /**
+     * End padding for a container-backed control that ends the bar, measured to
+     * its background. Coerced because [androidx.compose.foundation.layout.padding]
+     * throws on a negative value.
+     */
+    val ContainerTrailingInset = (Inset - BarPadding).coerceAtLeast(0.dp)
+
+    /** Screen edge to the glyph of an icon button that ends the bar. */
+    val IconTrailingInset = BarPadding + (IconButtonSize - IconSize) / 2
+}
diff --git a/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitleButton.kt b/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitleButton.kt
index 4857aa0..305f0ec 100644
--- a/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitleButton.kt
+++ b/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitleButton.kt
@@ -1,6 +1,7 @@
 package de.jeanlucmakiola.calendula.ui.common
 
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
@@ -12,6 +13,7 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 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
@@ -19,6 +21,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.text.rememberTextMeasurer
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import de.jeanlucmakiola.calendula.R
 import kotlinx.datetime.LocalDate
@@ -31,10 +35,9 @@ import kotlinx.datetime.LocalDate
  * [currentDate] seeds the picker with whatever the bar is currently naming (the
  * visible day, week start or month anchor).
  *
- * The row keeps its own 8.dp inset rather than shifting back onto the app bar's
- * start alignment: M3 places the title flush against the navigation icon's
- * trailing edge, and the title is hit-tested on top of it, so a negative offset
- * would swallow taps meant for the menu button.
+ * [shortTitle] replaces [title] when the full one does not fit the width the app
+ * bar hands the title slot (#165). Either way the line clamps to one and
+ * ellipsises, so pass a [shortTitle] wherever there is something left to drop.
  */
 @Composable
 fun CalendarTitleButton(
@@ -42,6 +45,7 @@ fun CalendarTitleButton(
     currentDate: LocalDate,
     onJumpToDate: (LocalDate) -> Unit,
     modifier: Modifier = Modifier,
+    shortTitle: String = title,
 ) {
     var showDatePicker by rememberSaveable { mutableStateOf(false) }
 
@@ -53,14 +57,27 @@ fun CalendarTitleButton(
                 onClickLabel = stringResource(R.string.drawer_jump_to_date),
                 role = Role.Button,
             ) { showDatePicker = true }
-            .padding(horizontal = 8.dp),
+            .padding(horizontal = AppBarSpacing.TitleInset),
         verticalAlignment = Alignment.CenterVertically,
     ) {
-        Text(
-            text = title,
-            style = MaterialTheme.typography.titleLarge,
-            modifier = Modifier.weight(1f, fill = false),
-        )
+        val style = MaterialTheme.typography.titleLarge
+        BoxWithConstraints(modifier = Modifier.weight(1f, fill = false)) {
+            val measurer = rememberTextMeasurer()
+            val shown = remember(title, shortTitle, style, constraints.maxWidth, measurer) {
+                titleFor(
+                    title = title,
+                    shortTitle = shortTitle,
+                    titleWidth = measurer.measure(title, style).size.width,
+                    availableWidth = constraints.maxWidth,
+                )
+            }
+            Text(
+                text = shown,
+                style = style,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+        }
         Icon(
             imageVector = Icons.Default.ArrowDropDown,
             contentDescription = null,
@@ -79,3 +96,11 @@ fun CalendarTitleButton(
         )
     }
 }
+
+/** Falls back to [shortTitle] when [title] is wider than [availableWidth] (#165). */
+internal fun titleFor(
+    title: String,
+    shortTitle: String,
+    titleWidth: Int,
+    availableWidth: Int,
+): String = if (titleWidth <= availableWidth) title else shortTitle
diff --git a/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/ViewSwitcherPill.kt b/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/ViewSwitcherPill.kt
index 825e549..3c60627 100644
--- a/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/ViewSwitcherPill.kt
+++ b/app/src/main/java/de/jeanlucmakiola/calendula/ui/common/ViewSwitcherPill.kt
@@ -1,11 +1,13 @@
 package de.jeanlucmakiola.calendula.ui.common
 
+import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.Dp
 
 /**
  * Top-bar pill that shows the current view and cycles to the next one on tap
@@ -14,6 +16,10 @@ import androidx.compose.ui.res.stringResource
  * Renders nothing when [cycle] holds fewer than [QuickSwitchConfig.MIN_CYCLE]
  * views (#150), so it drops straight into an app bar's `actions` slot without a
  * wrapping condition — the same way [TodayAction] handles being turned off.
+ *
+ * [trailingInset] lands the pill's background on the bar's own rhythm; pass
+ * `0.dp` outside a top app bar, where M3's actions padding is not there to
+ * cancel (#165).
  */
 @Composable
 fun ViewSwitcherPill(
@@ -21,12 +27,13 @@ fun ViewSwitcherPill(
     cycle: List<CalendarView>,
     onCycle: () -> Unit,
     modifier: Modifier = Modifier,
+    trailingInset: Dp = AppBarSpacing.ContainerTrailingInset,
 ) {
     if (cycle.size < QuickSwitchConfig.MIN_CYCLE) return
     FilledTonalButton(
         onClick = onCycle,
         shape = MaterialTheme.shapes.large,
-        modifier = modifier,
+        modifier = modifier.padding(end = trailingInset),
     ) {
         Text(stringResource(current.labelRes))
     }
diff --git a/app/src/main/java/de/jeanlucmakiola/calendula/ui/day/DayScreen.kt b/app/src/main/java/de/jeanlucmakiola/calendula/ui/day/DayScreen.kt
index a965694..e912c83 100644
--- a/app/src/main/java/de/jeanlucmakiola/calendula/ui/day/DayScreen.kt
+++ b/app/src/main/java/de/jeanlucmakiola/calendula/ui/day/DayScreen.kt
@@ -421,12 +421,17 @@ private fun DayTopBar(
     scrollBehavior: androidx.compose.material3.TopAppBarScrollBehavior,
 ) {
     val locale = currentLocale()
+    val (title, shortTitle) = remember(date, locale, currentYear) {
+        formatDayTitle(date, locale, currentYear) to
+            formatDayTitle(date, locale, currentYear, abbreviated = true)
+    }
     TopAppBar(
         title = {
             CalendarTitleButton(
-                title = formatDayTitle(date, locale, currentYear),
+                title = title,
                 currentDate = date,
                 onJumpToDate = onJumpToDate,
+                shortTitle = shortTitle,
             )
         },
         navigationIcon = {
@@ -449,7 +454,6 @@ private fun DayTopBar(
                 current = selectedView,
                 cycle = quickSwitchViews,
                 onCycle = onCycleView,
-                modifier = Modifier.padding(end = 8.dp),
             )
         },
         colors = TopAppBarDefaults.topAppBarColors(
@@ -815,10 +819,16 @@ private fun DayLoading() {
 private fun minToHm(min: Int, is24Hour: Boolean, locale: Locale): String =
     formatMinuteOfDay(min, is24Hour, locale)
 
-private fun formatDayTitle(date: LocalDate, locale: Locale, currentYear: Int): String =
+/** [abbreviated] drops the weekday, leaving the date itself (#165). */
+private fun formatDayTitle(
+    date: LocalDate,
+    locale: Locale,
+    currentYear: Int,
+    abbreviated: Boolean = false,
+): String =
     formatCalendarTitle(
         date = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day),
         locale = locale,
         currentYear = currentYear,
-        skeleton = "EEEdMMM",
+        skeleton = if (abbreviated) "dMMM" else "EEEdMMM",
     )
diff --git a/app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthScreen.kt b/app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthScreen.kt
index 61d8fc9..e77e858 100644
--- a/app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthScreen.kt
+++ b/app/src/main/java/de/jeanlucmakiola/calendula/ui/month/MonthScreen.kt
@@ -131,6 +131,7 @@ import de.jeanlucmakiola.calendula.ui.agenda.AgendaEmptyDayRow
 import de.jeanlucmakiola.calendula.ui.agenda.AgendaEventRow
 import de.jeanlucmakiola.calendula.ui.common.formatCalendarTitle
 import de.jeanlucmakiola.calendula.ui.common.CalendarDrawer
+import de.jeanlucmakiola.calendula.ui.common.AppBarSpacing
 import de.jeanlucmakiola.calendula.ui.common.CalendarTitleButton
 import de.jeanlucmakiola.calendula.ui.common.CalendarFabColumn
 import de.jeanlucmakiola.calendula.ui.common.TodayAction
@@ -292,10 +293,14 @@ fun MonthScreen(
     // carries the year instead of repeating it two lines further down. Dense has
     // no header to defer to, so it keeps the full title.
     val locale = currentLocale()
-    val topBarTitle = if (viewStyle == MonthViewStyle.Continuous) {
-        titleMonth.year.toString()
-    } else {
-        formatMonthTitle(titleMonth, locale, currentYear = today.year)
+    val (topBarTitle, topBarShortTitle) = remember(viewStyle, titleMonth, locale, today.year) {
+        if (viewStyle == MonthViewStyle.Continuous) {
+            val year = titleMonth.year.toString()
+            year to year
+        } else {
+            formatMonthTitle(titleMonth, locale, currentYear = today.year) to
+                formatMonthTitle(titleMonth, locale, currentYear = today.year, abbreviated = true)
+        }
     }
 
     // Slide direction for the grid transition: +1 = next, -1 = prev, 0 = jump (no slide).
@@ -384,6 +389,7 @@ fun MonthScreen(
             topBar = {
                 MonthTopBar(
                     title = topBarTitle,
+                    shortTitle = topBarShortTitle,
                     titleDate = LocalDate(titleMonth.year, titleMonth.month, 1),
                     selectedView = selectedView,
                     onCycleView = { onSelectView(selectedView.next(quickSwitchViews)) },
@@ -649,6 +655,7 @@ private fun ContinuousMonthContent(
 @Composable
 private fun MonthTopBar(
     title: String,
+    shortTitle: String,
     titleDate: LocalDate,
     selectedView: CalendarView,
     onCycleView: () -> Unit,
@@ -666,6 +673,7 @@ private fun MonthTopBar(
                 title = title,
                 currentDate = titleDate,
                 onJumpToDate = onJumpToDate,
+                shortTitle = shortTitle,
             )
         },
         navigationIcon = {
@@ -688,7 +696,6 @@ private fun MonthTopBar(
                 current = selectedView,
                 cycle = quickSwitchViews,
                 onCycle = onCycleView,
-                modifier = Modifier.padding(end = 8.dp),
             )
         },
         scrollBehavior = scrollBehavior,
@@ -706,7 +713,7 @@ internal fun WeekdayHeader(weekStart: DayOfWeek, showWeekNumbers: Boolean) {
     Row(
         modifier = Modifier
             .fillMaxWidth()
-            .padding(horizontal = 8.dp, vertical = 4.dp),
+            .padding(horizontal = AppBarSpacing.Inset, vertical = 4.dp),
     ) {
         // Reserve the gutter so the weekday labels stay over their day columns.
         if (showWeekNumbers) Spacer(Modifier.width(WEEK_NUMBER_GUTTER))
@@ -769,10 +776,10 @@ internal fun MonthGrid(
     Column(
         modifier = Modifier
             .fillMaxSize()
-            // Match the weekday header's 8dp inset so day cells sit under their
+            // Match the weekday header's inset so day cells sit under their
             // labels, and so the week-number gutter's centre lines up with the
             // top bar's hamburger (4dp bar inset + 24dp half icon button).
-            .padding(horizontal = 8.dp, vertical = 4.dp),
+            .padding(horizontal = AppBarSpacing.Inset, vertical = 4.dp),
         verticalArrangement = Arrangement.spacedBy(2.dp),
     ) {
         val month = state.month
@@ -864,7 +871,7 @@ private fun ContinuousMonthBlock(
     Column(
         modifier = Modifier
             .fillMaxWidth()
-            .padding(horizontal = 8.dp)
+            .padding(horizontal = AppBarSpacing.Inset)
             .padding(bottom = CONTINUOUS_MONTH_GAP),
         verticalArrangement = Arrangement.spacedBy(2.dp),
     ) {
@@ -946,7 +953,7 @@ internal fun DenseMonthGrid(
         state = listState,
         modifier = modifier
             .fillMaxSize()
-            .padding(horizontal = 8.dp),
+            .padding(horizontal = AppBarSpacing.Inset),
         verticalArrangement = Arrangement.spacedBy(2.dp),
         // Bottom inset clears the FAB stack so the last row stays tappable.
         contentPadding = PaddingValues(top = 4.dp, bottom = 96.dp),
@@ -1406,7 +1413,7 @@ internal fun SplitMonthGrid(
     Column(
         modifier = modifier
             .fillMaxWidth()
-            .padding(horizontal = 8.dp, vertical = 4.dp),
+            .padding(horizontal = AppBarSpacing.Inset, vertical = 4.dp),
         verticalArrangement = Arrangement.spacedBy(2.dp),
     ) {
         state.weeks.forEach { week ->
@@ -1771,7 +1778,7 @@ private fun ContinuousMonthSkeleton(dense: Boolean) {
     Column(
         modifier = Modifier
             .fillMaxSize()
-            .padding(horizontal = 8.dp)
+            .padding(horizontal = AppBarSpacing.Inset)
             .clipToBounds(),
     ) {
         if (!dense) {
@@ -2419,7 +2426,7 @@ private fun MonthGridLoading() {
     Column(
         modifier = Modifier
             .fillMaxSize()
-            .padding(horizontal = 8.dp, vertical = 4.dp),
+            .padding(horizontal = AppBarSpacing.Inset, vertical = 4.dp),
         verticalArrangement = Arrangement.spacedBy(4.dp),
     ) {
         repeat(6) {
@@ -2445,10 +2452,16 @@ private fun MonthGridLoading() {
     }
 }
 
-private fun formatMonthTitle(ym: YearMonth, locale: Locale, currentYear: Int): String =
+/** [abbreviated] swaps the full month name for its three-letter form (#165). */
+private fun formatMonthTitle(
+    ym: YearMonth,
+    locale: Locale,
+    currentYear: Int,
+    abbreviated: Boolean = false,
+): String =
     formatCalendarTitle(
         date = java.time.LocalDate.of(ym.year, ym.month.ordinal + 1, 1),
         locale = locale,
         currentYear = currentYear,
-        skeleton = "LLLL",
+        skeleton = if (abbreviated) "LLL" else "LLLL",
     )
diff --git a/app/src/main/java/de/jeanlucmakiola/calendula/ui/week/WeekScreen.kt b/app/src/main/java/de/jeanlucmakiola/calendula/ui/week/WeekScreen.kt
index ce365af..9fdfc5f 100644
--- a/app/src/main/java/de/jeanlucmakiola/calendula/ui/week/WeekScreen.kt
+++ b/app/src/main/java/de/jeanlucmakiola/calendula/ui/week/WeekScreen.kt
@@ -456,12 +456,17 @@ private fun WeekTopBar(
     scrollBehavior: androidx.compose.material3.TopAppBarScrollBehavior,
 ) {
     val locale = currentLocale()
+    val (title, shortTitle) = remember(weekStart, locale, currentYear) {
+        formatWeekTitle(weekStart, locale, currentYear) to
+            formatWeekTitle(weekStart, locale, currentYear, abbreviated = true)
+    }
     TopAppBar(
         title = {
             CalendarTitleButton(
-                title = formatWeekTitle(weekStart, locale, currentYear),
+                title = title,
                 currentDate = weekStart,
                 onJumpToDate = onJumpToDate,
+                shortTitle = shortTitle,
             )
         },
         navigationIcon = {
@@ -484,7 +489,6 @@ private fun WeekTopBar(
                 current = selectedView,
                 cycle = quickSwitchViews,
                 onCycle = onCycleView,
-                modifier = Modifier.padding(end = 8.dp),
             )
         },
         // Match the static top section exactly: plain surface, lifting to
@@ -1019,13 +1023,18 @@ private fun minToHm(min: Int, is24Hour: Boolean, locale: java.util.Locale): Stri
  * "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 {
+private fun formatWeekTitle(
+    weekStart: LocalDate,
+    locale: Locale,
+    currentYear: Int,
+    abbreviated: Boolean = false,
+): 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",
+        skeleton = if (abbreviated) "LLL" else "LLLL",
         forceYear = weekEnd.year != weekStart.year,
     )
 }
diff --git a/app/src/test/java/de/jeanlucmakiola/calendula/ui/common/AppBarSpacingTest.kt b/app/src/test/java/de/jeanlucmakiola/calendula/ui/common/AppBarSpacingTest.kt
new file mode 100644
index 0000000..55810e3
--- /dev/null
+++ b/app/src/test/java/de/jeanlucmakiola/calendula/ui/common/AppBarSpacingTest.kt
@@ -0,0 +1,28 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+
+class AppBarSpacingTest {
+
+    @Test
+    fun `the pill's background ends one inset from the screen edge`() {
+        // The padding is applied inside M3's actions row, so it carries that
+        // row's own inset on top of whatever the pill asks for (#165).
+        val rendered = AppBarSpacing.BarPadding + AppBarSpacing.ContainerTrailingInset
+        assertThat(rendered).isEqualTo(AppBarSpacing.Inset)
+    }
+
+    @Test
+    fun `trailing insets stay non-negative`() {
+        // Modifier.padding throws on a negative value.
+        assertThat(AppBarSpacing.ContainerTrailingInset.value).isAtLeast(0f)
+        assertThat(AppBarSpacing.IconTrailingInset.value).isAtLeast(0f)
+    }
+
+    @Test
+    fun `an icon button's glyph ends further in than a container's edge`() {
+        assertThat(AppBarSpacing.IconTrailingInset.value)
+            .isGreaterThan(AppBarSpacing.Inset.value)
+    }
+}
diff --git a/app/src/test/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitleButtonTest.kt b/app/src/test/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitleButtonTest.kt
new file mode 100644
index 0000000..31786e3
--- /dev/null
+++ b/app/src/test/java/de/jeanlucmakiola/calendula/ui/common/CalendarTitleButtonTest.kt
@@ -0,0 +1,31 @@
+package de.jeanlucmakiola.calendula.ui.common
+
+import com.google.common.truth.Truth.assertThat
+import org.junit.jupiter.api.Test
+
+class CalendarTitleButtonTest {
+
+    @Test
+    fun `keeps the full title when it fits`() {
+        assertThat(titleFor("September", "Sep", titleWidth = 200, availableWidth = 300))
+            .isEqualTo("September")
+    }
+
+    @Test
+    fun `keeps the full title when it fills the slot exactly`() {
+        assertThat(titleFor("September", "Sep", titleWidth = 300, availableWidth = 300))
+            .isEqualTo("September")
+    }
+
+    @Test
+    fun `falls back to the short title when the full one overflows`() {
+        assertThat(titleFor("September", "Sep", titleWidth = 400, availableWidth = 300))
+            .isEqualTo("Sep")
+    }
+
+    @Test
+    fun `a caller with nothing to shorten still gets its own title back`() {
+        assertThat(titleFor("Wed, 2 Sep", "Wed, 2 Sep", titleWidth = 400, availableWidth = 300))
+            .isEqualTo("Wed, 2 Sep")
+    }
+}