The text will be larger, double what it was cause i just increased the font size by double cause 4k is twice the height of 1080 and cause the abbreviated icon setting that we tend to use, which is the '^' is linked by the font size, so that part is easy to change to personal preference. If you open the file in something like notepad++ its line 151,
local default_font = {"DejaVuLGCSans.ttf", 30, 0, 0, 0}
Technically it should be 26 not 30, as it was 13 originally, but that was close enough when i compared the screens and i was to lazy to change it again.
I never really used text icons before so I can't remember how big the text was. I just used old screen shots to check and get the abbreviated icons to the same size as they were before.
It looks like you can do a huge amount of customisation including distance and fade in fade out in that file, names at different ranges, if you can work out the right bits!!!
In an ideal world, I'd of just increased the size of the ^ and left the text the same size, but I can't see how you unlink them easily if at all.
Editing .lua files is not my speciality though!
Edit, found some old screenshots i made showing the difference between pre multithreading and post, when both versions were available,
pre,
post multithreading,