AndroidAPS/app/src/main/res/values/styles.xml

<resources>

    <!-- The launcher theme. It sets the main window background to the launch_screen drawable -->
    <style name="AppTheme.Launcher"  parent="Theme.AppCompat.NoActionBar">
        <item name="android:windowBackground">@drawable/launch_screen</item>
        <!-- Optional, on Android 5+ you can modify the colorPrimaryDark color to match the windowBackground color for further branding-->
        <!-- <item name="colorPrimaryDark">@android:color/white</item> -->
    </style>

    <style name="AppTheme" parent="Theme.AppCompat">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="dialogTitleBackground">@color/dialog_title_background</item>
        <item name="dialogTitleColor">@color/dialog_title_color</item>
        <item name="dialogTitleIconTint">@color/dialog_title_icon_tint</item>
    </style>

    <style name="section_header_label">
        <item name="android:layout_width">match_parent</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:layout_marginTop">15dp</item>
        <item name="android:paddingStart">15dp</item>
        <item name="android:paddingEnd">15dp</item>
        <item name="android:textColor">@color/colorAccent</item>
    </style>

    <style name="warning_label">
        <item name="android:layout_width">match_parent</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:layout_marginTop">5dp</item>
        <item name="android:layout_marginBottom">5dp</item>
        <item name="android:paddingStart">15dp</item>
        <item name="android:paddingEnd">15dp</item>
        <item name="android:textAlignment">center</item>
        <item name="android:textColor">#ff0000</item>
    </style>

    <style name="ProfileHelperAppTheme" parent="Theme.MaterialComponents.NoActionBar"/>
</resources>