     /**
      The size value of NSFontAttributeName
      
+     ### example
+     ```
+     "StringStylizer".stylize().font(.Copperplate_Light).attr
+     ```
+     <img width="153" src="https://cloud.githubusercontent.com/assets/18320004/14388859/16328002-fdeb-11e5-99d7-2687525b5e3d.png">
+     
      - parameter size:Double
      - returns: StringStylizer<Styling>
      */

    /**
     The value of NSForegroundColorAttributeName
     
     - parameter color:UIColor
     - returns: StringStylizer<Styling>
     */

    /**
     The values of NSStrokeWidthAttributeName and NSStrokeColorAttributeName
     
     ### example
     ```
     "StringStylizer".stylize().stroke(color: .redColor(), alpha: 1, width: 2).attr
     ```
     <img width="135" src="https://cloud.githubusercontent.com/assets/18320004/14389200/7fca9c74-fdec-11e5-996b-3ead1ac564cc.png">
     
     - parameter color:UIColor
     - parameter alpha:Double (default:1.0)
     - parameter width:Double (default:1.0)
