update navigation bar icon color

    <item name="android:textColorSecondary">@color/dialer_secondary_text_color</item>

    <!-- This is used for title bar color in recents -->

    <item name="android:windowLightStatusBar">true</item>

    <item name="android:windowLightNavigationBar">true</item>

    <item name="android:colorPrimary">@color/titlebar_in_recents_background_color</item>

    <item name="android:colorPrimaryDark">@color/dialer_theme_color_dark</item>

    <item name="android:colorControlActivated">@color/dialer_theme_color</item>