     var pageControl: UIPageControl!
     var backButton: UIButton!
     var forwardButton: UIButton!
-    //var signInButton: UIButton!
 
     var bgColors = [UIColor]()
 
     private var scrollView: IntroOverlayScrollView!
 
     var slideVerticalScaleFactor: CGFloat = 1.0
+
+    var arrow: UIImageView?
 
     override func viewDidLoad() {
         view.backgroundColor = UIColor.whiteColor()


        slideContainer = UIView()
        slideContainer.backgroundColor = bgColors[0]
        var imageView: UIImageView!
        for i in 0..<IntroViewControllerUX.NumberOfCards {
            imageView = UIImageView(frame: CGRect(x: CGFloat(i)*scaledWidthOfSlide, y: 0, width: scaledWidthOfSlide, height: scaledHeightOfSlide))
            imageView.image = slides[i]
            slideContainer.addSubview(imageView)
        }
        imageView.alpha = 0.1

        scrollView.addSubview(slideContainer)
        scrollView.snp_makeConstraints { (make) -> Void in

        bgColors.append(BraveUX.BraveButtonMessageInUrlBarColor)
        bgColors.append(BraveUX.BraveButtonMessageInUrlBarColor)

        arrow = UIImageView(image: UIImage(named: "screen_5_arrow"))

        // scale the slides down for iPhone 4S
        if view.frame.height <=  480 {
