RetroMusicPlayer/app/src/main/res/drawable-v21/rect_selector_strong.xml

<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="?attr/colorOnSecondary">

    <item
        android:id="@android:id/mask"
        android:drawable="@android:color/white" />
    <item>
        <selector>
            <item
                android:drawable="@color/ate_control_normal_light"
                android:state_activated="true" />
        </selector>
    </item>

</ripple>