code: def get_colr(txt, argd):
      
      fore = parse_colr_arg(
          get_name_arg(argd, '--fore', 'FORE', default=None),
          rgb_mode=argd['--truecolor'],
      )
      back = parse_colr_arg(
          get_name_arg(argd, '--back', 'BACK', default=None),
          rgb_mode=argd['--truecolor'],
      )
      style = get_name_arg(argd, '--style', 'STYLE', default=None)
      if argd['--gradient']:
          # Build a gradient from user args.
          return C(txt).gradient(
              name=argd['--gradient'],
              spread=try_int(argd['--spread'], 1, minimum=0),
              fore=fore,
              back=back,
              style=style,
              rgb_mode=argd['--truecolor'],
          )
      if argd['--gradientrgb']:
          # Build an rgb gradient from user args.
          rgb_start, rgb_stop = parse_gradient_rgb_args(argd['--gradientrgb'])
          return C(txt).gradient_rgb(
              fore=fore,
              back=back,
              style=style,
              start=rgb_start,
              stop=rgb_stop,
          )
      if argd['--rainbow']:
          return C(txt).rainbow(
              fore=fore,
              back=back,
              style=style,
              freq=try_float(argd['--frequency'], 0.1, minimum=0),
              offset=try_int(argd['--offset'], randint(0, 255), minimum=0),
              spread=try_float(argd['--spread'], 3.0, minimum=0),
              rgb_mode=argd['--truecolor'],
          )
  
      # Normal colored output.
      return C(txt, fore=fore, back=back, style=style)
docs: Return a Colr instance based on user args.