     @IBInspectable public var borderColor: UIColor {
         get {
             guard let borderColor = self.layer.borderColor else {
-                return UIColor(red: 0, green: 0, blue: 0, alpha: 0)
+                return UIColor.clear
             }
             return UIColor(cgColor: borderColor)
         }

        animation.path = path.cgPath
        animation.repeatCount = count
        animation.duration = duration
        animation.autoreverses = false
        
        self.layer.add(animation, forKey: "animateAlongPath")
    }

    @IBInspectable public var shadowColor: UIColor {
        get {
            guard let shadowColor = self.layer.shadowColor else {
                return UIColor.clear
            }
            return UIColor(cgColor: shadowColor)
        }
