Crystal is a lightweight and intuitive theme manager for iOS - Crystal

Hello everyone! If you are an iOS developer who want to integrate theme feature into your app, you might like this open source library. - Flexible: Crystal is compitible with any object, not just built-in UI components. You can use Crystal anywhere. - Friendly: Apply themes in a way you're familiar with, and no additional property APIs will make you confused and distracted. - Simple: Adding a theme is as simple as creating an instance. It's easy to maintain your themes with Crystal. - Type Safe: Take full advantage of swift's type safety. Apply your theme with confidence and benefit from compile-time check. How to use this library? You just need to define your theme type and Crystal will take care of all the boring stuff. Just try it! Hope this library can really help you.