gtk-sharp 2.12.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Used to change the appearance of an outline typically provided by a . System.Enum GLib.GType(typeof(Gtk.ShadowTypeGType)) Field Gtk.ShadowType No outline. Field Gtk.ShadowType The outline is bevelled inwards. Field Gtk.ShadowType The outline is bevelled outwards like a button. Field Gtk.ShadowType The outline itself is an inward bevel, but the frame is an outward bevel. Field Gtk.ShadowType The outline itself is an outward bevel, but the frame is an inward bevel.