appcompat/appcompat/src/main/res/anim/btn_checkbox_to_unchecked_box_inner_merged_animation.xml

<?xml version="1.0" encoding="utf-8"?>
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  ~ Copyright 2018 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
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  ~ 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
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                android:propertyName="fillAlpha"
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                android:propertyName="fillAlpha"
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