A better way to get color values from UIColorWells

UIDebouncedColorWell.swift

//
//  UIDebouncedColorWell.swift
//

import UIKit
import Combine

private class PublishingColor {
    @Published var color: UIColor? = nil
}

class UIDebouncedColorWell: UIColorWell {

    private var colorCancellable: AnyCancellable?
    private let bgq = DispatchQueue(label: "UIColorWellDebounceQueue")
    private let publishedColor = PublishingColor()

    required init?(coder: NSCoder) {
        super.init(coder: coder)

        colorCancellable = publishedColor.$color
            .debounce(for: 0.2, scheduler: bgq)
            .sink { [weak self] someColor in
                DispatchQueue.main.async {
                    self?.sendActions(for: .debouncedValueChanged)
                }
            }

        self.addTarget(self, action: #selector(self._colorValueDidChange(sender:)),
                       for: .valueChanged)

    }

    @objc private func _colorValueDidChange(sender: UIColorWell) {
        publishedColor.color = sender.selectedColor
    }
}

extension UIControl.Event {
    public static var debouncedValueChanged = UIControl.Event(rawValue: 99999)
}