diff --git a/app/src/main/res/layout/widget_preview_next_alarm.xml b/app/src/main/res/layout/widget_preview_next_alarm.xml
index f67b820..e8d9a34 100644
--- a/app/src/main/res/layout/widget_preview_next_alarm.xml
+++ b/app/src/main/res/layout/widget_preview_next_alarm.xml
@@ -2,7 +2,11 @@
 <!-- The widget picker's preview of the next-alarm widget (`previewLayout`,
      API 31+): a static stand-in for `ui/widget/NextAlarmWidgetContent.kt` —
      the Cookie alarm badge, a day, a time and a label on the surface card. -->
+<!-- android:tint, not app:tint: the launcher inflates this as RemoteViews,
+     where AppCompat attributes never apply. -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:ignore="UseAppTint"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@drawable/widget_bg_card"
diff --git a/app/src/main/res/layout/widget_preview_quick_timer.xml b/app/src/main/res/layout/widget_preview_quick_timer.xml
index 43a52e9..3288972 100644
--- a/app/src/main/res/layout/widget_preview_quick_timer.xml
+++ b/app/src/main/res/layout/widget_preview_quick_timer.xml
@@ -2,7 +2,11 @@
 <!-- The widget picker's preview of the quick-timer widget (`previewLayout`,
      API 31+): a static stand-in for `ui/widget/QuickTimerWidgetContent.kt`
      at rest — the Scallop with a play glyph over its default 05:00. -->
+<!-- android:tint, not app:tint: the launcher inflates this as RemoteViews,
+     where AppCompat attributes never apply. -->
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:ignore="UseAppTint"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
diff --git a/app/src/main/res/layout/widget_preview_stopwatch.xml b/app/src/main/res/layout/widget_preview_stopwatch.xml
index 9885483..e516ea2 100644
--- a/app/src/main/res/layout/widget_preview_stopwatch.xml
+++ b/app/src/main/res/layout/widget_preview_stopwatch.xml
@@ -4,7 +4,11 @@
      Circle face, running — the shape with its readout, the circular pause
      against its lower-left edge, lap and reset in the pill at its upper
      right. Fixed at a size that fits two cells. -->
+<!-- android:tint, not app:tint: the launcher inflates this as RemoteViews,
+     where AppCompat attributes never apply. -->
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:ignore="UseAppTint"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
diff --git a/app/src/main/res/layout/widget_preview_timer.xml b/app/src/main/res/layout/widget_preview_timer.xml
index 724cccc..4216087 100644
--- a/app/src/main/res/layout/widget_preview_timer.xml
+++ b/app/src/main/res/layout/widget_preview_timer.xml
@@ -2,7 +2,11 @@
 <!-- The widget picker's preview of the timer widget (`previewLayout`,
      API 31+): a static stand-in for `ui/widget/TimerWidgetContent.kt`'s lone
      running timer — readout over a circular pause and a reset. -->
+<!-- android:tint, not app:tint: the launcher inflates this as RemoteViews,
+     where AppCompat attributes never apply. -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:ignore="UseAppTint"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@drawable/widget_bg_card"