Thread on jme3 forum:
https://hub.jmonkeyengine.org/t/mermaid-lemur-compatible-3d-widgets/36898
3D GUI widgets for JMonkeyEngine 3
Thread on jme3 forum:
https://hub.jmonkeyengine.org/t/mermaid-lemur-compatible-3d-widgets/36898
3D GUI widgets for JMonkeyEngine 3
BSD 3-Clause "New" or "Revised" License