def color_critical(n, critical, options = {})
      options = { :normal => "#ff8700", :critical => "red" }.merge(options)
      if n.to_i == 0
        n.to_s
      elsif n.to_i < critical
        _color(options[:normal], n.to_i)
      else
        _color(options[:critical], n.to_i)
      end
    end
def color_critical(n, critical, options = {})
      options = { :normal => "#ff8700", :critical => "red" }.merge(options)
      if n.to_i == 0
        n.to_s
      elsif n.to_i < critical
        _color(options[:normal], n.to_i)
      else
        _color(options[:critical], n.to_i)
      end
    end
Public: Colorize a number based on wether it's
         below a critical value or not.

 n        - The number to colorize.
 critical - The critical value.
 options  - A Hash of colors for the different colors
            :normal   - for the value equal or below `critical`
            :critical - for the value above `critical`

 Returns the colored string.