         }
     }
     
-    fileprivate func updateDisplayStyle(_ displayStyle: DisplayStyle) {
+    private func updateDisplayStyle(_ displayStyle: DisplayStyle) {
         
         switch displayStyle {
         case .roundRectangle:

    /**
     The action button on the layout
     */
    @IBOutlet open weak var actionButton: UIButton? {
        willSet {
            if let actionButton = newValue {
                actionButton.addTarget(self,

        }
    }
    
    // MARK: Properties
    
    private var contentView: UIView?
    private var contentViewLeftMargin: NSLayoutConstraint?
    private var contentViewRightMargin: NSLayoutConstraint?
    private var contentViewBottomMargin: NSLayoutConstraint?
    
    private var backgroundContainer: UIView?
    
    private var keylineView: UIView?
    private var customKeylineColor: UIColor?
    
    private var customNibName: String?
    fileprivate var nibName: String {
        get {
            guard let nibName = customNibName else {
