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

    <size
        android:width="30dp"
        android:height="30dp" />

    <stroke
        android:width="3dp"
        android:color="#ffffff" />
</shape>