     public var verticalContentInset: CGFloat = 0.0
     
     public var dimsWhenPressed = false
+    public var swellsWhenPressed = false
+    public var swellFraction = CGFloat(1.1)
+    public var swellDuration = 0.2
     
     
     

    
    override public func updateAllUI() {
        
        configureBackground()
        
        configureImageView()

    override public func touchDidBegin(gestureRecognizer: UIGestureRecognizer) {
        
        pressed = true
        animatedUpdate()
        buttonDelegate?.buttonWasTouched(self)
        
    }
