gistfile1.rb

  def color_with(value=nil, options={})
    if options.is_a?(Numeric)
      alpha = options.to_f
    else
      alpha = options.delete(:alpha) || 1
    end

    if value
      if (value.is_a?(String) && value[0] == "#")
        value = value.gsub("#", "").to_i(16)
      end

      if value.is_a?(Fixnum)
        red     = ((value & 0xFF0000) >> 16)  / 255.0
        green   = ((value & 0xFF00) >> 8)     / 255.0
        blue    = (value & 0xFF)              / 255.0
        UIColor.colorWithRed(red, green: green, blue: blue, alpha: alpha)
      end
    else
      UIColor.clearColor
    end
  end