chromium/components/browser_ui/styles/android/java/res/color/text_button_ripple_color_list.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright 2022 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:alpha="@dimen/default_pressed_alpha"
        android:color="@macro/default_control_color_active" android:state_pressed="true"/>
    <item android:alpha="@dimen/default_focused_hovered_alpha"
        android:color="@macro/default_control_color_active" android:state_focused="true" android:state_hovered="true"/>
    <item android:alpha="@dimen/default_focused_alpha"
        android:color="@macro/default_control_color_active" android:state_focused="true"/>
    <item android:alpha="@dimen/default_hovered_alpha"
        android:color="@macro/default_control_color_active" android:state_hovered="true"/>
    <item android:color="@android:color/transparent" />
</selector>