Input: Output:

usage: swatch.py [-h] [--light] [-r R] [-n N] [-c C] [--unique] image

A tool to generate Textmate/Sublime Text themes from images.

positional arguments:
  image       The image to extract colors from.

optional arguments:
  -h, --help  show this help message and exit
  --light     Switch to light-background color scheme.
  -r R        Reduction of RGB colors. A reduction of 64 rounds RGB values to
			  the nearest multiple of 64.
  -n N        Number of reduced colors to choose from.
  -c C        Minimum contrast between background and colors. 256 is the
			  contrast between black and white.
  --unique    Use each color only once.