<com.innercirclesoftware.drawabletest.DiamondImageButton
        android:id="@+id/btn_settings"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_gravity="center"
        android:background="@drawable/diamond_bg_selected"
        android:elevation="10dp"
        android:src="@drawable/ic_settings"/>