code: def console_set_char_background(
      con: tcod.console.Console,
      x: int,
      y: int,
      col: Tuple[int, int, int],
      flag: int = BKGND_SET,
  ) -> None:
      
      lib.TCOD_console_set_char_background(_console(con), x, y, col, flag)
docs: Change the background color of x,y to col using a blend mode.
  
      Args:
          con (Console): Any Console instance.
          x (int): Character x position from the left.
          y (int): Character y position from the top.
          col (Union[Tuple[int, int, int], Sequence[int]]):
              An (r, g, b) sequence or Color instance.
          flag (int): Blending mode to use, defaults to BKGND_SET.