First of all, sorry for the slight delay in my reply.
Secondly, thank you very much for supporting Whonix in such a way. I have now assessed your work and there are a few things which stick out to me.
For one, we decided to not use any non standard fonts, as to both ensure the lowest possible loading time, as well as not having to rely on any non viewable source files. Thus using ".woff2 files" sadly is not possible for us.
The rest appears to be working flawlessly.
Thank you and have a nice day,