Custom drop-in UIImageView subclass that makes every image blurred with a specified visual effect. Swift, UIKit

BlurredImageView.swift

final class BlurredImageView: UIImageView {
    
    init(effect: UIVisualEffect? = UIBlurEffect(style: .regular)) {
        super.init(frame: .zero)
        blurView.effect = effect
        addSubview(blurView)
    }
    
    var effect: UIVisualEffect? {
        get { blurView.effect }
        set { blurView.effect = newValue }
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    private let blurView: UIVisualEffectView = {
        let blurView = UIVisualEffectView()
        return blurView
    }()
    
    override func layoutSubviews() {
        super.layoutSubviews()
        blurView.frame = bounds
    }
}