How to change android design support library FAB Button border color?

Question

I want to change fab button border color. border color is white, inside color is black or transparent

I'd like my button to look like this:

Answer 1

you can make circle without drawable

  <android.support.design.widget.FloatingActionButton
        android:id="@+id/bottom_navigation_fab"
        style="@style/fab_material"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerInParent="true"
        android:layout_gravity="bottom|center"
        app:borderWidth="3dp"
        android:backgroundTint="@color/mountain_meadow" // inner circle color
        android:layout_marginBottom="10dp"
        android:tint="@color/white"
        app:backgroundTint="@color/white" // border color
        app:srcCompat="@drawable/bottom_nav_star" />

output :