     }
     
     /// A value for the line alignment.
+    @objc
     open var lineAlignment = TabBarLineAlignment.bottom {
         didSet {
             layoutSubviews()

    open let line = UIView()
    
    /// The line color.
    open var lineColor: UIColor? {
        get {
            return line.backgroundColor

    }
    
    /// The line height.
    @objc
    open var lineHeight: CGFloat {
        get {
            return line.bounds.height
