chromium/chrome/android/java/res/drawable/checkmark_selection_drawable.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.
-->

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:drawable="@drawable/ic_checkmark_24dp" />
    <item android:drawable="@android:color/transparent" />
</selector>