UserDefaults extension to set/get UIColor array

UserDefaults+UIColor.swift

//MARK: UserDefaults Extension
extension UserDefaults {
    func getColors(key: String) -> [UIColor]? {
        if let data = data(forKey: key) {
            do {
                if let color = try NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data) as? [UIColor] {
                    return color
                }
            } catch {
                print("Error")
            }
        }
        return nil
    }
    
    func setColors(_ colors: [UIColor]?, forKey key: String) {
        if let color = colors {
            do {
                let data = try NSKeyedArchiver.archivedData(withRootObject: color, requiringSecureCoding: false)
                set(data, forKey: key)
            } catch {
                print("Error")
            }
        }
    }
}

//MARK: Usage
var bgColors:Array<UIColor> {
    get {
        return UserDefaults.standard.getColors(key: "bgColor") ?? [UIColor.gray]
    }
    set {
        UserDefaults.standard.setColors(newValue, forKey: "bgColor")
    }
}