Yuito-app-android/app/src/main/res/values-v27/styles.xml

<resources>

    <!--Light Application Theme Styles-->
    <style name="AppTheme" parent="AppThemeBase">
        <item name="android:windowLightNavigationBar">true</item>
        <item name="android:navigationBarColor">@color/color_background_light</item>
        <item name="android:navigationBarDividerColor">@color/status_divider_light</item>
    </style>

    <style name="Remin" parent="ReminBase">
        <item name="android:windowLightNavigationBar">true</item>
        <item name="android:navigationBarColor">@color/color_background_light</item>
        <item name="android:navigationBarDividerColor">@color/status_divider_light</item>
    </style>

</resources>