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

<resources>

    <style name="MaterialAppTheme" parent="Theme.AppCompat">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="coordinatorLayoutStyle">@style/Widget.Support.CoordinatorLayout</item>
        <item name="floatingActionButtonStyle">@style/Widget.Design.FloatingActionButton</item>
    </style>

    <style name="DarkThemeOverlay" parent="DarkThemeOverlayBase"/>

    <style name="CardContentStyle" parent="CardContentStyleBase"/>

    <style name="DialogThemeDark" parent="Theme.MaterialComponents.Dialog">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>

        <item name="android:background">@color/colorPrimary</item>
        <item name="android:windowBackground">@color/colorPrimary</item>
    </style>

    <style name="DialogThemeLight" parent="Theme.MaterialComponents.Light.Dialog">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
</resources>