Caseless enum for color schemes

In Swift, Enums don’t need to have case values but can still have static properties. This makes a great use case for storing constant values, since the enum can’t be instantiated. For example with a color scheme, and an extension on UIColor, as described here.

enum ColorScheme {
	static let darkText = UIColor(hex: 0x1A1A1A)
	static let lightText = UIColor(hex: 0x545454)

	static let darkGray = UIColor(hex: 0xDAE0E6)
	static let lightGray = UIColor(hex: 0xEEEEEE)
}

You can even nest Enums to provide better namespacing.