docs: def cell_strings(term):
      """Return the strings that represent each possible living cell state.
  
      Return the most colorful ones the terminal supports.
  
      """
      num_colors = term.number_of_colors
      if num_colors >= 16:
          funcs = term.on_bright_red, term.on_bright_green, term.on_bright_cyan
      elif num_colors >= 8:
          funcs = term.on_red, term.on_green, term.on_blue
      else:
          # For black and white, use the checkerboard cursor from the vt100
          # alternate charset:
          return (term.reverse(' '),
                  term.smacs + term.reverse('a') + term.rmacs,
                  term.smacs + 'a' + term.rmacs)
      # Wrap spaces in whatever pretty colors we chose:
      return [f(' ') for f in funcs]