Creating new types of elements, styles, etc

So what I need now is to learn how to create new elements within nifty (like the default button and such) and how to use styles.

Seems pretty simple… except for the seemingly complete lack of documentation on niftyGUI, you guys have any “nifty” links or tips on where to look?

https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:advanced:nifty_gui

Contains even more links to documentation like Download nifty-gui from SourceForge.net among others

https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:advanced:nifty_gui_best_practices
https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:advanced:nifty_gui_scenarios

So, the tip on where to look: Docs -> Tutorials & Docs, lol