XML is an acronym for "eXtensible Markup Language".
See the XML UI reference.
- XML UI - WoW can generate User Interface elements using XML markup. This facility is known collectivly as FrameXML UI.
- XML Basics Guide - Plain XML markup itself, and a guide for learning the basics.
- Widget API - The Widget API is a LUA based API for generating and manipulating WoW Widget UI elements.