res/drawable/ic_launcher_foreground.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
     SPDX-FileCopyrightText: 2022 The LineageOS Project
     SPDX-License-Identifier: Apache-2.0
-->
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:aapt="http://schemas.android.com/aapt"
    android:width="108dp"
    android:height="108dp"
    android:viewportWidth="108"
    android:viewportHeight="108">
  <group>
    <clip-path
        android:pathData="M0,0h108v108h-108z"/>
    <path
        android:pathData="M108,0H0V108H108V0ZM42,30C39.791,30 38,31.791 38,34V74C38,76.209 39.791,78 42,78H66C68.209,78 70,76.209 70,74V34C70,31.791 68.209,30 66,30H42Z"
        android:fillColor="#2A3232"
        android:fillType="evenOdd"/>
    <path
        android:pathData="M28.54,28.54m-72,0a72,72 0,1 1,144 0a72,72 0,1 1,-144 0"
        android:fillAlpha="0.6">
      <aapt:attr name="android:fillColor">
        <gradient 
            android:gradientRadius="72"
            android:centerX="28.54"
            android:centerY="28.54"
            android:type="radial">
          <item android:offset="0" android:color="#19FFFFFF"/>
          <item android:offset="1" android:color="#00FFFFFF"/>
        </gradient>
      </aapt:attr>
    </path>
  </group>
</vector>