Video: https://www.youtube.com/watch?v=Bpv0Jbjn2Us
Documentation: https://docs.google.com/document/d/1ntbgJmxNW2V9LxCGiwelkjk1vm6sZpjpYBeNEBOpSVc
Demo: https://drive.google.com/file/d/1Uy-imMA8GuRQU2KTJ-tic3YHVXTaO6Vf/view?usp=share_link
The main idea of the Asset is that you can easily create skill trees (or research trees) using only the widget. Tables can be used, but it is not necessary.
There is support for both active and passive skills. Adding your logic for skills is also easy.
To understand how an Asset works, see Quick Start in the documentation.
The asset implements a save and load system. But if you use your own system, e.g. via a plug-in, you can easily reconfigure it. You only need to save and load a few variables.