SystemColors

This repository provides to things:

• An Xcode asset catalog containing all dynamic system colors for backwards compatibility with iOS 11 and 12.
• A Swift file for convenience access of those colors that also provides fallbacks for iOS < 11.

Usage

Download and drop the asset catalog in your project. Instead of the iOS-13-only API

label.textColor = UIColor.label

you can now use the color by name, which is also available in iOS 11 and 12:

label.textColor = UIColor(named: "label")

The colors will adapt for dark mode and the high contrast accessibility setting like the system colors would.

If you also add SystemColors.swift to your project, you can do the following instead:

label.textColor = SystemColors.label

Generation

The asset catalog and Swift file were generated from the actual system colors using the SystemColorsCatalogGeneration.playground. If you want to have the dark variants as default option in iOS < 13, you can change the useDarkAsFallback flag before running the playground.