We only support all other L&Fs to the extend that there are no exceptions when running. Extra effort has to be done to make it looking good under each L&F. We can only select some a few standard L&Fs to support it as part of the JIDE core as there are too many 3rd party L&Fs out there so it is impossible for us to support all of them. Kirill already created a place for this effort at
https://substance-jide.dev.java.net/. As far as I know, he didn't do anything to it as there isn't much public interests in this project. So the only thing I can suggest is if you are interested in this project, you can contribute to it and help to thrive this project.
Thanks,