java/com/android/incallui/answer/impl/hint/res/drawable/answer_hint_small.xml

<?xml version="1.0" encoding="utf-8"?>
  <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
    <solid android:color="#00C853"/>
    <stroke android:color="#00C853" android:width="2dp"/>
  </shape>