res/values-night-v31/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2021 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.
  -->

<resources>
    <style name="ActionBarTheme" parent="@style/ThemeOverlay.AppCompat.ActionBar">
        <item name="colorControlNormal">?android:textColorSecondary</item>
        <item name="android:actionMenuTextColor">@*android:color/accent_device_default_dark</item>
        <item name="android:textAllCaps">false</item>
    </style>

    <style name="TabTextAppearance" parent="@android:style/TextAppearance.Material.Medium">
        <item name="android:textSize">14sp</item>
        <item name="fontFamily">@string/config_fontFamilyMedium</item>
        <item name="android:textColor">?android:attr/colorAccent</item>
    </style>

    <style name="EmptyStateButton" parent="@style/Widget.MaterialComponents.Button.OutlinedButton">
        <item name="android:backgroundTint">@android:color/transparent</item>
        <item name="android:textColor">@*android:color/system_neutral1_100</item>
        <item name="android:textAllCaps">false</item>
        <item name="android:textAppearance">@style/EmptyStateButtonTextAppearance</item>
    </style>
</resources>