# File lib/compass/commands/generate_grid_background.rb, line 8
      def set_options(opts)
        banner = %Q{Usage: compass grid-img W+GxH [path/to/grid.png]

Description:
  Generates a background image that can be used to check grid alignment.

  Height is optional and defaults to 20px

  By default, the image generated will be named "grid.png"
  and be found in the images directory.

  This command requires that you have both ImageMagick and RMagick installed.

Examples:

  compass grid-img 40+10 # 40px column, 10px gutter, 20px height
  compass grid-img 40+20x28 # 40px column, 20px gutter, 28px height
  compass grid-img 60+20x28 images/wide_grid.png

Options:
}
        opts.banner = banner

        super
      end