directadmin team don't need to do anything with this, if you still want to do, just use hooks update_post to automatics apply javascript ta into all html files.
And control everything with your jquery skills.
That's the thing tho, how can I do it. It would be a lot easier if we would get the skin source files to compile on our own.
There is lack of consistency, some headers are wrapped with ".pageSection", some ".app-page-header" and plugins with "plugin-host-header" class. URL Detection kinda works, kinda doesn't. Setting interval to detect the URL isn't the best practice.
I did manage to implement it in a way I kinda wanted, but it shouldn't be a case for such modern frontend to solve issues this way :/