val program_name : ([> `aboutdialog ], string) Gobject.propertyval copyright : ([> `aboutdialog ], string) Gobject.propertyval license : ([> `aboutdialog ], string) Gobject.propertyval logo : ([> `aboutdialog ], GdkPixbuf.pixbuf) Gobject.propertyval logo_icon_name : ([> `aboutdialog ], string) Gobject.propertyval translator_credits : ([> `aboutdialog ], string) Gobject.propertyval version : ([> `aboutdialog ], string) Gobject.propertyval website : ([> `aboutdialog ], string) Gobject.propertyval website_label : ([> `aboutdialog ], string) Gobject.propertyval wrap_license : ([> `aboutdialog ], bool) Gobject.property