              sub_frame = ttk.Frame(parent, style="Group.TFrame")
              self._sub_group_frames[subgroup] = AutoFillContainer(sub_frame,
                                                                   self.option_columns,
                                                                   self.option_columns,
                                                                   style="Group.")
              sub_frame.pack(anchor=tk.W, expand=True, fill=tk.X)
              logger.debug("Added Subgroup Frame: %s", subgroup)
          return self._sub_group_frames[subgroup]
  
  
 
</s> remove             sub_frame = ttk.Frame(parent, style="Group.TFrame")
 </s> add             sub_frame = ttk.Frame(parent, style=f"{self._style}Group.TFrame") </s> remove                                    style="Group.")
 </s> add                                    style=f"{self._style}Group.") </s> remove         chk_frame = ttk.Frame(frame, name="chkbuttons", style="Group.TFrame")
 </s> add         chk_frame = ttk.Frame(frame, name="chkbuttons", style=f"{self._style}Group.TFrame") </s> remove                                    style="Group.")
 </s> add                                    style=f"{self._style}Group.") </s> remove                                   style="Group.TCheckbutton")
 </s> add                                   style=f"{self._style}Group.TCheckbutton")
                                                                 style=f"{self._style}Group.")
              sub_frame = ttk.Frame(parent, style="Group.TFrame")
              self._sub_group_frames[subgroup] = AutoFillContainer(sub_frame,
                                                                   self.option_columns,
                                                                   self.option_columns,
                                                                 style=f"{self._style}Group.")
              sub_frame.pack(anchor=tk.W, expand=True, fill=tk.X)
              logger.debug("Added Subgroup Frame: %s", subgroup)
          return self._sub_group_frames[subgroup]
  
  
keep keep keep keep replace keep keep keep keep keep
 Minor Updates
  - GUI - Tweaks
    - Fix Analysis Slider background color
    - More granular theming controls
    - Standardize comboboxes and scrollbars
  - plugins.train.model._base
      - Catch more model corruption errors 
lib/gui/control_helper.py