public static Xwt.Drawing.Color GetBackgroundColor(this Gtk.Widget widget, Gtk.StateType state)
 {
     return(widget.GetBackgroundColor(state.ToGtk3StateFlags()));
 }
 public static Xwt.Drawing.Color GetBackgroundColor(this Gtk.Widget widget)
 {
     return(widget.GetBackgroundColor(Gtk.StateFlags.Normal));
 }