 
     override func sharedSetup() {
         super.sharedSetup()
-        backgroundColor = .whiteColor()
+        backgroundColor = UIColor.whiteColor()
         updateOutline()
     }
 

public class LightElloButton: ElloButton {

    override func updateStyle() {
        backgroundColor = enabled ? .greyE5() : .greyF1()
    }

    override func sharedSetup() {

    }

    func updateStyle() {
        backgroundColor = enabled ? UIColor.blackColor() : UIColor.grey231F20()
    }

    required override public init(frame: CGRect) {
