<level-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/ic_scroll_indicator_circle_green_12dp" android:minLevel="0" android:maxLevel="0" />
    <item android:drawable="@drawable/ic_scroll_indicator_circle_orange_12dp" android:minLevel="1" android:maxLevel="1" />
    <item android:drawable="@drawable/ic_scroll_indicator_circle_red_12dp" android:minLevel="2" android:maxLevel="2" />
    <item android:drawable="@drawable/ic_scroll_indicator_circle_blue_12dp" android:minLevel="3" android:maxLevel="3" />
    <item android:drawable="@drawable/ic_scroll_indicator_circle_indigo_12dp" android:minLevel="4" android:maxLevel="4" />
    <item android:drawable="@drawable/ic_scroll_indicator_circle_blue_grey_12dp" android:minLevel="5" android:maxLevel="5" />
    <item android:drawable="@drawable/ic_scroll_indicator_circle_cyan_12dp" android:minLevel="6" android:maxLevel="6" />
    <item android:drawable="@drawable/ic_scroll_indicator_circle_teal_12dp" android:minLevel="7" android:maxLevel="7" />
</level-list>