If anyone is interested in using this binding, it is now ready to be used.
Download precompiled jar from here.
GitHub Project and readme is found here which includes example things, items and sitemap files.
The GitHub project for the firmware for a ESP device and plenty of info on how to get the hardware going:
Since I never got the WLed project running with the other methods posted on this site, it would be great to hear how this binding works compared to the other methods. What is better? Anything work not as good and needs to be improved?