SchildiChat-android/vector/src/main/res/values/theme_common.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <!-- Launcher Theme, only used for VectorLauncherActivity (will be use even before the Activity is started) -->
    <style name="AppTheme.Launcher" parent="Theme.MaterialComponents.Light.NoActionBar">
        <item name="android:windowBackground">@drawable/splash</item>

        <item name="colorPrimaryDark">@color/primary_color_dark</item>
    </style>

    <style name="AppTheme.AttachmentsPreview" parent="AppTheme.Base.Black"/>

</resources>