Migrate the GUI to CraftUX This is my GUI library that contains some common GUI logic and performance improvements. It eliminates the manual guess-work of finding where in the old GUI code to add features. The new library allows me to finally wrap all the common code and focus on the specific details of each interfaces, making it more intuitive to add new features like Custom Commands in Decorate Items (available in the next update). Although I tested it in my test server, this is considered as a breaking change. Make sure to test it before updating on your production server.