code: def _highlight_path(self, hl_path, tf):
          
          fc = self.settings.get('row_font_color', 'green')
  
          try:
              self.treeview.highlight_path(hl_path, tf, font_color=fc)
          except Exception as e:
              self.logger.info('Error changing highlight on treeview path '
                               '({0}): {1}'.format(hl_path, str(e)))
docs: Highlight or unhighlight a single entry.
  
          Examples
          --------
          >>> hl_path = self._get_hl_key(chname, image)
          >>> self._highlight_path(hl_path, True)