Yeah, sounds like a non-reason, my user CSS was like 5 lines. I'll have to run an extension that will be injecting JS/CSS into every page, to get the same effe

Yeah, sounds like a non-reason, my user CSS was like 5 lines. I'll have to run an extension that will be injecting JS/CSS into every page, to get the same effect. That will likely be slower. Not a speed improvement exactly. At least it's more powerful. I can replace any rule inside already loaded CSS. Useful to escape this braindead age of "font-size < 16px && font-weight < 400".