Dark mode color adapter

UIColor+.swift

extension UIColor {
    static func adapt(lightModeColor: UIColor?, darkModeColor: UIColor?) -> UIColor {
        guard let lightModeColor = lightModeColor,
            let darkModeColor = darkModeColor else {
            fatalError("No color")
        }
        if #available(iOS 13, *) {
            return UIColor { (traitCollection: UITraitCollection) -> UIColor in
                if traitCollection.userInterfaceStyle == .dark {
                    /// Return the color for Dark Mode
                    return darkModeColor
                } else {
                    /// Return the color for Light Mode
                    return lightModeColor
                }
            }
        } else {
            /// Return a fallback color for iOS 12 and lower.
            return lightModeColor
        }
    }
}