          return self._items
  
      @property
      def subframe(self):
          """ Returns the next subframe to be populated """
          frame = self.subframes[self._idx]
          next_idx = self._idx + 1 if self._idx + 1 < self.columns else 0
          logger.debug("current_idx: %s, next_idx: %s", self._idx, next_idx)
          self._idx = next_idx
          self._items += 1
 
</s> remove         """ Set a subrame for each possible column """
 </s> add         """ Set a sub-frame for each possible column """ </s> remove         """ Returns the number of items held in this containter """
 </s> add         """ Returns the number of items held in this container """ </s> remove         """ Generate an 'Enter' keypress to terminate Windows training """
 </s> add         """ Generate an 'Enter' key press to terminate Windows training """ </s> remove         root = get_config().root
        config = get_config().user_config_dict
        r_width = root.winfo_width()
        r_height = root.winfo_height()
        w_ratio = config["options_panel_width"] / 100.0
        h_ratio = 1 - (config["console_panel_height"] / 100.0)
 </s> add         config_opts = self._config.user_config_dict
        r_width = self.winfo_width()
        r_height = self.winfo_height()
        w_ratio = config_opts["options_panel_width"] / 100.0
        h_ratio = 1 - (config_opts["console_panel_height"] / 100.0) </s> remove                                img, self.errcount)
                if self.errcount < 10:
                    self.errcount += 1
 </s> add                                img, self._errcount)
                if self._errcount < 10:
                    self._errcount += 1
        """ Returns the next sub-frame to be populated """
          return self._items
  
      @property
      def subframe(self):
        """ Returns the next sub-frame to be populated """
          frame = self.subframes[self._idx]
          next_idx = self._idx + 1 if self._idx + 1 < self.columns else 0
          logger.debug("current_idx: %s, next_idx: %s", self._idx, next_idx)
          self._idx = next_idx
          self._items += 1
keep keep keep keep replace keep keep keep keep keep
 GUI Updates (#940)

* lib.gui: Update icons
* tools.cli: Add video filetype flag to mask input
* lib.gui.popup_configure: Refresh GUI on config save
* lib.gui._config: Add Icon size and load last session options
* lib.gui.control_helper - Add control modification tracking
* lib.gui - Add Projects and Last Session
- Main root title handled by projects
- Add Hotkeys
- Create projects module
- split fsw and fst filetypes
- Add last_session saving

* lib.project
- Documentation
- Ask confirm on closing unsaved project
-Fixups

* Track model folder changes
- Shuffle some globals
- Activate System Verbosity for GUI

* lib.gui.utils - Documentation and clean up
- lib.gui.custom_widgets - Create and document

* Add GUI config option to disable auto loading model stats 
lib/gui/control_helper.py