              if is_master:
                  group_frame = ttk.Frame(opts_frame)
              else:
                  group_frame = ToggledFrame(opts_frame, text=group.title())
                  retval = group_frame.sub_frame
                  retval.config(highlightbackground="#176087",
                                highlightcolor="#176087",
 
</s> remove                 group_frame = ttk.LabelFrame(opts_frame, text="" if is_master else group.title())
 </s> add                 group_frame = ToggledFrame(opts_frame, text=group.title())
                retval = group_frame.sub_frame
                retval.config(highlightbackground="#176087",
                              highlightcolor="#176087",
                              background="#FFFFFF") </s> remove             self.group_frames[group] = dict(frame=group_frame,
                                            chkbtns=self.checkbuttons_frame(group_frame))
 </s> add             self.group_frames[group] = dict(frame=retval,
                                            chkbtns=self.checkbuttons_frame(retval)) </s> remove                       variable=self.option.tk_var)
 </s> add                       variable=self.option.tk_var,
                      style=style) </s> remove                              name="{}_labelframe".format(option_type))
 </s> add                              name="{}_labelframe".format(option_type),
                             style="CPanel.TLabelframe")
                retval = group_frame
              if is_master:
                  group_frame = ttk.Frame(opts_frame)
                retval = group_frame
              else:
                  group_frame = ToggledFrame(opts_frame, text=group.title())
                  retval = group_frame.sub_frame
                  retval.config(highlightbackground="#176087",
                                highlightcolor="#176087",
keep add keep keep keep keep keep
 GUI - Make groups collapsible 
lib/gui/control_helper.py