Quote Originally Posted by Laraul View Post

The problem with UI customization with FFXIV is that the development team would have to spend a large amount of time developing the infrastructure to allow users to extend or replace the current UI. While presently the game does use lua for client side UI, it's not designed to be extended.
That would be why they're completely remaking the UI and server structure... Hello? 2.0?

Also, the new UI is made using Scaleform which is also used in RIFT iirc.