void OnFirstItemsItemFocused(object sender, Tizen.TV.UIControls.Forms.FocusedItemChangedEventArgs e)
        {
            var item = e.FocusedItem as ColorModel;

            if (item != null)
            {
                firstItems.BackgroundColor = item.Color;
            }
        }
 void OnSecondItemsItemFocused(object sender, Tizen.TV.UIControls.Forms.FocusedItemChangedEventArgs e)
 {
     itemIndex.Text = e.FocusedItemIndex.ToString();
 }