chromium/chrome/browser/readaloud/android/java/res/drawable/mini_play_button.xml

<?xml version="1.0" encoding="UTF-8"?> 
<!--
Copyright 2023 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/primary_gray_rounded"/>
    <item
        android:drawable="@drawable/play_arrow_32"
        android:left="10dp"
        android:top="10dp"
        android:right="10dp"
        android:bottom="10dp"/>
</layer-list>