ntfy-android/app/src/main/res/values/styles.xml

<resources>
    <!-- Main app theme; dark theme styles see values-night/styles.xml -->
    <style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
        <item name="colorPrimary">@color/teal</item>
        <item name="colorAccent">@color/teal</item> <!-- checkboxes, text fields -->
        <item name="android:colorBackground">@color/gray_light</item> <!-- background -->
        <item name="android:statusBarColor">@color/teal</item>
        <item name="actionModeBackground">@color/teal_dark</item>
        <item name="android:popupMenuStyle">@style/PopupMenu</item>
    </style>

    <!-- Danger buttons & text -->
    <style name="DangerText" parent="@android:style/TextAppearance">
        <item name="android:textColor">@color/red_dark</item>
    </style>

    <!-- Floating action button -->
    <style name="FloatingActionButton" parent="@style/Widget.MaterialComponents.FloatingActionButton">
        <item name="tint">@color/white</item>
        <item name="backgroundTint">@color/teal</item>
    </style>

    <!-- Rounded corners in images, see https://stackoverflow.com/a/61960983/1440785 -->
    <style name="roundedCornersImageView" parent="">
        <item name="cornerFamily">rounded</item>
        <item name="cornerSize">5dp</item>
    </style>

    <style name="PopupMenu" parent="@style/Widget.Material3.PopupMenu">
        <item name="android:popupBackground">@color/white</item>
    </style>
</resources>