code: def load_last_visible_toolbars(self):
          
          toolbars_names = CONF.get('main', 'last_visible_toolbars', default=[])
  
          if toolbars_names:
              dic = {}
              for toolbar in self.toolbarslist:
                  dic[toolbar.objectName()] = toolbar
  
              toolbars = []
              for name in toolbars_names:
                  if name in dic:
                      toolbars.append(dic[name])
              self.visible_toolbars = toolbars
          else:
              self.get_visible_toolbars()
          self._update_show_toolbars_action()
docs: Loads the last visible toolbars from the .ini file.