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

    <!-- Semi-transparent dark background with subtle gradient -->
    <gradient
        android:type="radial"
        android:gradientRadius="60dp"
        android:centerColor="#66000000"
        android:endColor="#33000000" />

    <!-- Subtle border for definition -->
    <stroke
        android:width="1dp"
        android:color="#22FFFFFF" />

</shape>