Inheritance: ISearchGroup
 //@BindingAdapter("coverFadeBackground")
 public static void SetCoverFadeBackground(this View view, Category category)
 {
     view.SetBackgroundResource(category.GetPaleColorResId());
 }
 // @BindingAdapter("categoryVividColor")
 public static void SetCategoryVividColor(this CollapsingToolbarLayout view, Category category)
 {
     view.SetContentScrimColor(ContextCompat.GetColor(view.Context, category.GetVividColorResId()));
 }
 // @BindingAdapter("categoryVividColor")
 public static void SetCategoryVividColor(this TextView view, Category category)
 {
     view.SetTextColor(new Color(ContextCompat.GetColor(view.Context, category.GetVividColorResId())));
 }
 public void SetCategory(Category category)
 {
     Root.FindViewById<TextView>(Resource.Id.txt_category).Text = category.Name;
 }