chromium/chrome/android/features/tab_ui/public/android/java/res/values/dimens.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.
-->

<resources>
    <!-- Tab strip container alpha values -->
    <item name="bg_tabstrip_tab_folio_startup_alpha" format="float" type="dimen">0.05</item>

    <!-- Tab strip container hover color alpha values -->
    <item name="tsr_folio_tab_inactive_hover_alpha" format="float" type="dimen">0.08</item>
</resources>