Active dot for sliding tabs

active_dot.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:dither="true"
    android:shape="oval"
    android:useLevel="true">

    <size
        android:width="12dp"
        android:height="12dp" />

    <solid android:color="@color/colorAccent" />
</shape>