              a file dialog is popped to enable the user to choose a state file. Default: ``None``
           """
          logger.debug("Loading session")
          if full_path is None:
              full_path = FileHandler("filename", "state").retfile
              if not full_path:
                  return
          self._clear_session()
          logger.debug("state_file: '%s'", full_path)
          model_dir, state_file = os.path.split(full_path)
 
</s> remove         filename = FileHandler("filename", filetypes).retfile
 </s> add         filename = FileHandler("filename", filetypes).return_file </s> remove     retfile: str or object
 </s> add     return_file: str or object </s> remove             cfgfile = self._file_handler("open", handler).retfile
 </s> add             cfgfile = self._file_handler("open", handler).return_file </s> remove                 tooltip_kwargs = dict(text=self.option.helptext, wraplength=600)
 </s> add                 tooltip_kwargs = dict(text=self.option.helptext, wrap_length=600) </s> remove         to *args to accomplish that.  For an example, see colorizer.py.
 </s> add         to *args to accomplish that.
            full_path = FileHandler("filename", "state").return_file
              a file dialog is popped to enable the user to choose a state file. Default: ``None``
           """
          logger.debug("Loading session")
          if full_path is None:
            full_path = FileHandler("filename", "state").return_file
              if not full_path:
                  return
          self._clear_session()
          logger.debug("state_file: '%s'", full_path)
          model_dir, state_file = os.path.split(full_path)
keep keep keep keep replace keep keep keep keep keep
 GUI fixes
  - Split themes and styles to own module
  - Fix border on console window
  - variable name updates to make pep8 happy 
lib/gui/display_analysis.py