code: def load_toolbars(self):
          
          toolbars_names = CONF.get('main', 'last_visible_toolbars', default=[])
          if toolbars_names:
              dic = {}
              for toolbar in self.toolbars:
                  dic[toolbar.objectName()] = toolbar
                  toolbar.toggleViewAction().setChecked(False)
                  toolbar.setVisible(False)
              for name in toolbars_names:
                  if name in dic:
                      dic[name].toggleViewAction().setChecked(True)
                      dic[name].setVisible(True)
docs: Loads the last visible toolbars from the .ini file.