I was flummoxed for a bit, by what turned out to be essentially a small typo in the Display Appearance… dialog.
All became clear when I read §8.1 in the NKB under “Display Size”:
If you have selected the Headings setting, then you will be asked to choose an em value…
But the prompt is pt, whether the user has selected Body or Headings.
A small point, but one I thought I should emphasize.
That’s a good catch! Fixing that now… Should be corrected in the next release. Thanks!
This looks to be nicely solved in beta 12.5.3!
Sometimes Discourse lets you mark a post as “solved” or “answered.” I went to do so, but that seems not to be set up for this forum. Is there something else I ought to do?
You make a good point. I’m starting to implement a system using the following tags:
But I’ll probably restrict access to these.
This looks great!
FYI, I don’t seem to be able to assign any tags at all (other than, curiously:
) — but of course it’s perfectly OK if you don’t want users to do so. 
Sorry I didn’t reply earlier here – right now, it just seems easiest for me to assign the tags.
