                                          initial_file,
                                          file_type,
                                          command,
                                          action,
                                          variable)
          self.return_file = getattr(self, f"_{self._handletype.lower()}")()
          self._remove_dummy_master()
  
          logger.debug("Initialized %s", self.__class__.__name__)
  
 
</s> remove                      "variable: %s)", self.__class__.__name__, handle_type, file_type, title,
                     initial_folder, initial_file, command, action, variable)
 </s> add                      "variable: %s, parent: %s)", self.__class__.__name__, handle_type, file_type,
                     title, initial_folder, initial_file, command, action, variable, parent) </s> remove                      "file_type: '%s', command: '%s': action: '%s', variable: '%s')",
                     title, initial_folder, initial_file, file_type, command, action, variable)
 </s> add                      "file_type: '%s', command: '%s': action: '%s', variable: '%s', parent: %s)",
                     title, initial_folder, initial_file, file_type, command, action, variable,
                     parent) </s> remove                  variable: Optional[str] = None) -> None:
 </s> add                  variable: Optional[str] = None,
                 parent: Optional[tk.Frame] = None) -> None: </s> remove                                      int(self._config.get("preview_images", 14)),
 </s> add                                      num_images,
                                     cast(int, self._config["mask_opacity"]),
                                     cast(str, self._config["mask_color"]), </s> remove         self._samples = _Samples(model, coverage_ratio)
 </s> add         self._samples = _Samples(model, coverage_ratio, mask_opacity, mask_color)
                                        variable,
                                        parent)
                                          initial_file,
                                          file_type,
                                          command,
                                          action,
                                        variable,
                                        parent)
          self.return_file = getattr(self, f"_{self._handletype.lower()}")()
          self._remove_dummy_master()
  
          logger.debug("Initialized %s", self.__class__.__name__)
  
keep keep keep keep replace keep keep keep keep keep
 Preview - Allow mask color/opacity configuration
  - typing: lib.config
  - docs: lib.config
  - bugfix: popup_configure - keep assets on top 
lib/gui/utils/file_handler.py