Android - VectorXML notification icon color, SAMSUNG bug?

Question

I try to use the new VectorXML for small icon into the NotificationCompat.Builder. On Nexus devices everything works fine and Android automatically tint the icon to the required color, mostly to white. But on Samsung (S5 with Android 6.0.1) the icon is never tinted. See screenshots:

Any idea why? It is an Samsung's implementation bug?

Answer 1

For all,

the solution is to make the base (fill) color white, then "auto" tint works fine also on Samsung devices! ;)

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24"
        android:viewportHeight="24">

    <path
        android:fillColor="#FFF"
        android:pathData="M12,12m-8,0a8,8 0,1 1,16 0a8,8 0,1 1,-16 0"/>

</vector>