Swift, storyboards

I have several custom views with the same characteristics. I simplify it here. This works well. But just to learn, perhaps there is a better way to do that? Perhaps with less code to unify?

@IBOutlet weak var vermell1: NSView!
@IBOutlet weak var vermell2: NSView!

override func viewDidLoad() {
        vermell1.wantsLayer = true
        vermell1.layer?.backgroundColor = NSColor.red.cgColor

        vermell2.wantsLayer = true
        vermell2.layer?.backgroundColor = NSColor.red.cgColor
}