res/drawable/set_crop_button_background.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2023 The Android Open Source Project
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~      http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
-->
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="?android:colorControlHighlight">

    <item android:id="@android:id/mask">
        <shape android:shape="oval">
            <padding
                android:bottom="@dimen/wallpaper_control_button_padding"
                android:left="@dimen/wallpaper_control_button_padding"
                android:right="@dimen/wallpaper_control_button_padding"
                android:top="@dimen/wallpaper_control_button_padding" />
            <solid android:color="?android:colorControlHighlight" />
        </shape>
    </item>

    <item android:drawable="@drawable/set_crop_button_background_base" />
</ripple>