          self._tk_vars = dict(header=tk.StringVar())
  
          header_frame = self._build_header()
          content_frame = ttk.Frame(self)
  
          self._tree = _Tree(content_frame, configurations, name, theme).tree
 
</s> remove         self._tree = _Tree(content_frame, configurations, name).tree
 </s> add         self._tree = _Tree(content_frame, configurations, name, theme).tree </s> remove         self._style = "" if style is None else f"{style}."
 </s> add         self._theme = get_config().user_theme["group_panel"]
        if self._style.startswith("SPanel"):
            self._theme = {**self._theme, **get_config().user_theme["group_settings"]} </s> remove                 style = "Group.TCheckbutton"
 </s> add                 style = f"{self._style}Group.TCheckbutton" </s> remove         lookup = "settings_popup" if self._style.startswith("SPanel") else "control_panel"
        theme = get_config().user_theme[lookup]
        canvas_kwargs = dict(bd=0, highlightthickness=0, bg=theme["secondary_color"])
 </s> add         canvas_kwargs = dict(bd=0, highlightthickness=0, bg=self._theme["panel_background"])
        theme = {**get_config().user_theme["group_panel"],
                 **get_config().user_theme["group_settings"]}
          self._tk_vars = dict(header=tk.StringVar())
  
        theme = {**get_config().user_theme["group_panel"],
                 **get_config().user_theme["group_settings"]}
          header_frame = self._build_header()
          content_frame = ttk.Frame(self)
  
          self._tree = _Tree(content_frame, configurations, name, theme).tree
keep add 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/popup_configure.py