I've trying to isolate a few things now:
I can't find a way to colorize this white strip.
The font color for the "chat, quote, and reply" so it's easier to see.
And then the widgets (header/side bar) and button bar (I don't know what it's called).
I've tried looking up the classes but they haven't provided a result that fixes it.
Again, all help is greatly appreciated.
There is existing discussion about this here: https://github.com/NodeBB/NodeBB/issues/5172
You can voice your support for whatever option you see as best there.
BenLubar created this issue in NodeBB/NodeBB
"automatically watch threads in this category" option