# File lib/colored.rb, line 83
  def color(color_name)
    background = color_name.to_s =~ /on_/
    color_name = color_name.to_s.sub('on_', '')
    return unless color_name && COLORS[color_name]
    "\e[#{COLORS[color_name] + (background ? 10 : 0)}m" 
  end