code: def _mk_context_menu(self, thumbkey, chname, info):
          
          menu = Widgets.Menu()
          item = menu.add_name("Display")
          item.add_callback('activated',
                            lambda w: self.load_file(
                                thumbkey, chname, info.name, info.path,
                                info.image_future))
          menu.add_separator()
          item = menu.add_name("Remove")
          item.add_callback('activated',
                            lambda w: self.fv.remove_image_by_name(
                                chname, info.name, impath=info.path))
  
          return menu
docs: NOTE: currently not used, but left here to be reincorporated
          at some point.