Gtk# only suppports gtk2. (well last beta release of gtk3 binding was released 2014-06-04, but lot of APIs are missing and buggy) (Xamarin said that they woul

Gtk# only suppports gtk2. (well last beta release of gtk3 binding was released 2014-06-04, but lot of APIs are missing and buggy) (Xamarin said that they would not going to port xamarin studio to gtk3) since gtk2 doesn't support hi-dpi scaling, I would not recommend it.