     }
     var extname: String {
         return "png"
+    }
+    var scale: CGFloat {
+        return 1.0
     }
 
     var lengths: [CGFloat] = [

    var prefix: String { get }
    var config: CreatorConfiguration { get }
    var extname: String { get }

    func suffix(size: CGSize) -> String
    func data(image: UIImage) -> NSData

        let offsetY = size.height * config.fontOffsetScaleY

        let opaque = true
        UIGraphicsBeginImageContextWithOptions(size, opaque, scale)

        let context = UIGraphicsGetCurrentContext()!
