gistfile1.rbx

module Experimental
  class Palette
    def initialize(colors)
      @colors = []; @names = {}
      if colors.first.length == 2   # This is how we prefer our input, but you can make a palette without it.
        colors.each {|n, c| @names[n] = c; @colors << c }
      else
        colors.each {|c| @colors << c }
      end
    end

    def [](arg)
      if arg.is_a? Integer
        @colors[arg]
      else
        @names[arg]
      end
    end
  end
end

gistfile2.rbx

module Palettes
  module Butterflies

    class ButterflyBrown < Palette
      def initialize
       super %w{ ["wood shadows","#502B1B"] ["like the earth","#9A592F"] ["soft shades of soil","#BC8751"] 
["light tree bark","#D09E59"] ["make them look","#C7232C"] }
      end

    end
  end
end

gistfile3.rbx

module Experimental
  module Palettes
    class ColourLovers < Palette
      def initialize(args)
        if args.is_a? Hash
          raise ArgumentError if args[:keywords].nil?
          params = args.inject {|p,(a,v)| p + "#{a}=#{b}&" } # We will always add a format, so don't fear the trailing '&'
        else
          params = "keywords=#{args}&" if args.is_a? String
        end
        json = JSON.load( Net::HTTP.get( URI.parse 'http://www.colourlovers.com/api/palettes?' + params + 'format=json' ))
        json.colors.nil? ? raise ArgumentError, "no such palette found by COLOURLovers" : super json.colors
      end
    end
  end
end