Change icons border when click the bottom tab bar in Swift

I have custom bottom navigation bar in IOS application, everythings work very well, and I want to change bottom navigation items tint color when I click the items, and I was use the

self.imgView.image!.withRenderingMode(.alwaysTemplate)
self.imgView.tintColor = .red

in isSelected, and it is change whole icons border tint color. I do not know where I miss, any idea?

RootStackTabViewController:

 class RootStackTabViewController: UIViewController {

@IBOutlet weak var bottomStack: UIStackView!

var currentIndex = 0

lazy var tabs: [StackItemView] = {
    var items = [StackItemView]()
    for _ in 0..<5 {
        items.append(StackItemView.newInstance)
    }
    return items
}()

lazy var tabModels: [BottomStackItem] = {
    return [
        BottomStackItem(title: "Home", image: "home"),
        BottomStackItem(title: "Favorites", image: "heart"),
        BottomStackItem(title: "Search", image: "search"),
        BottomStackItem(title: "Profile", image: "user"),
        BottomStackItem(title: "Settings", image: "settings")
    ]
}()

override func viewDidLoad() {
    super.viewDidLoad()
    self.setupTabs()
}

func setupTabs() {
    for (index, model) in self.tabModels.enumerated() {
        let tabView = self.tabs[index]
        model.isSelected = index == 0
        tabView.item = model
        tabView.delegate = self
        self.bottomStack.addArrangedSubview(tabView)
    }
  }
  }

StackItemView:

     protocol StackItemViewDelegate: AnyObject {
     func handleTap(_ view: StackItemView)
     }

     class StackItemView: UIView {
    
    @IBOutlet weak var titleLabel: UILabel!
    @IBOutlet weak var imgView: UIImageView!
    @IBOutlet weak var highlightView: UIView!
    
    private let higlightBGColor = UIColor(hexString: "1160FB")
    
     static var newInstance: StackItemView {
        return Bundle.main.loadNibNamed(
            StackItemView.className(),
            owner: nil,
            options: nil
        )?.first as! StackItemView
      }
    
    weak var delegate: StackItemViewDelegate?
    
    override func awakeFromNib() {
        super.awakeFromNib()
        self.addTapGesture()
    }
  
    var isSelected: Bool = false {
        willSet {
            self.updateUI(isSelected: newValue)
            self.titleLabel.textColor = UIColor.white
         
 self.imgView.image!.withRenderingMode(.alwaysTemplate)      
            self.imgView.tintColor = .red
    
            
        }
    }
    
    var item: Any? {
        didSet {
            self.configure(self.item)
        }
    }
    
    private func configure(_ item: Any?) {
        guard let model = item as? BottomStackItem else { return }
        self.titleLabel.text = model.title
        self.imgView.image = UIImage(named: model.image)
        self.isSelected = model.isSelected
    }
    
    private func updateUI(isSelected: Bool) {
        guard let model = item as? BottomStackItem else { return }
        model.isSelected = isSelected
        let options: UIView.AnimationOptions = isSelected ? [.curveEaseIn] : [.curveEaseOut]
        
        UIView.animate(withDuration: 0.4,
                       delay: 0.0,
                       usingSpringWithDamping: 1.0,
                       initialSpringVelocity: 0.5,
                       options: options,
                       animations: {
            self.titleLabel.text = isSelected ? model.title : ""
            let color = isSelected ? self.higlightBGColor : .white
            self.highlightView.backgroundColor = color
            (self.superview as? UIStackView)?.layoutIfNeeded()
        }, completion: nil)
    }
    
}

extension StackItemView {
    
    func addTapGesture() {
        let tapGesture = UITapGestureRecognizer(target: self,
                                                action: #selector(handleGesture(_:)))
        self.addGestureRecognizer(tapGesture)
    }
    
    @objc
    func handleGesture(_ sender: UITapGestureRecognizer) {
        self.delegate?.handleTap(self)
    }
    
}