notification/drawable-anydpi-v21/ic_priority_high_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M12,19m-2,0a2,2 0,1 1,4 0a2,2 0,1 1,-4 0"/>
    <path
        android:fillColor="#FF000000"
        android:pathData="M10,3h4v12h-4z"/>
</vector>