     let titleFont: UIFont
     let messageFont: UIFont
     let isHapticFeedbackEnabled: Bool
+    let windowLevel: UIWindow.Level
 
     public init(errorColor: UIColor = Defaults.errorColor,
                 successColor: UIColor = Defaults.successColor,


      public func withHapticFeedbackEnabled(_ isEnabled: Bool) -> Builder {
        isHapticFeedbackEnabled = isEnabled
        return self
      }


                errorIcon: UIImage? = nil,
                titleFont: UIFont = Defaults.titleFont,
                messageFont: UIFont = Defaults.messageFont,
                isHapticFeedbackEnabled: Bool = Defaults.isHapticFeedbackEnabled,
                windowLevel: UIWindow.Level = Defaults.windowLevel) {
      self.errorColor = errorColor
      self.successColor = successColor
      self.infoColor = infoColor
