code: def bk_dark(cls):
          "Make the current background color dark."
          wAttributes = cls._get_text_attributes()
          wAttributes &= ~win32.BACKGROUND_INTENSITY
          cls._set_text_attributes(wAttributesf bk_dark(cls):
          "Make the current background color dark."
          wAttributes = cls._get_text_attributes()
          wAttributes &= ~win32.BACKGROUND_INTENSITY
          cls._set_text_attributes(wAttributes)
docs: Make the current background color dark.