gtk-sharp 2.6.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. This enumeration provides the possible values for the relief style for a . System.Enum GLib.GType(WrapperType=typeof(Gtk.ReliefStyleGType)) Field Gtk.ReliefStyle Value for a normal relief style. Field Gtk.ReliefStyle Value for a partial relief style. Field Gtk.ReliefStyle Value for a not using relief.