code: def _set_default_params(ufo):
      
      for _, ufo_name, default_value in DEFAULT_PARAMETERS:
          if getattr(ufo.info, ufo_name) is None:
              if isinstance(default_value, list):
                  # Prevent problem if the same default value list is put in
                  # several unrelated objects.
                  default_value = default_value[:]
              setattr(ufo.info, ufo_name, default_value)
docs: Set Glyphs.app's default parameters when different from ufo2ft ones.