XGUI-3 is a new version of XGUI that cleans up and expands on XGUI-2.
It's most notable feature is the addition of an ImGui style immediate mode UI API, which makes debugging UI and development panels quick and easy to implement.
In order to use it, you must place one of these in the scene Then after that, you can call the ImXGUI.Begin functions and stuff to draw immediate mode windows in any component anywhere in update or fixedupdate. Here's an example to get you started, The API will aim to match ImGui