chromium/components/browser_ui/styles/android/java/res/values-v27/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright 2020 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<resources>
    <style name="ThemeOverlay.BrowserUI.Fullscreen" parent="Base.ThemeOverlay.BrowserUI.Fullscreen">
        <item name="android:navigationBarColor">@macro/bottom_system_nav_color</item>
        <item name="android:navigationBarDividerColor">@macro/bottom_system_nav_divider_color</item>
        <item name="android:windowLightNavigationBar">@bool/window_light_navigation_bar</item>
    </style>
</resources>