Why is my UIButton.tintColor not working?

Question

My build target is set for IOS5 which is where I understand UIButton.tintColor was introduced...

I have this in my viewDidLoad for the View Controller

Answer 1

In iOS 13 you can tint the image and then set it to the button:

let coloredImage = UIImage().withTintColor(UIColor.red)
UIButton().setImage(coloredImage, for: .normal)