Changing overlay color for all apps in dark theme.

        <item name="android:textColorHint">#A0FFFFFF</item>

        <item name="android:colorControlHighlight">#A0FFFFFF</item>

        <item name="android:colorPrimary">#FF333333</item>

        <item name="allAppsScrimColor">#7A000000</item>

        <item name="allAppsScrimColor">#7A212121</item>

        <item name="allAppsNavBarScrimColor">#80000000</item>

        <item name="popupColorPrimary">?android:attr/colorPrimary</item>

        <item name="popupColorSecondary">#424242</item> <!-- Gray 800 -->