Changing editor font has no effect on rendered tex until VS restart
Continuing from #78 and #79, I changed the editor font back to Cascadia Mono Regular. This did not change the rendered //tex: block's font:
Closing and re-opening the source file in the editor does not affect rendering font. When opening the file again, a non-rendered form of the comment flashes for a fraction of a second, set in the expected font, but then switches to the rendered form same as above, using the font in effect at VS2022 startup. Toggling edit/render mode for the block also preserves the stale font. The font changes to the same face (but, #79, not always the same size) as the rest of comments after restarting VS2022 only.
A minor glitch with the line number 19 rendered in a different color I'd be all for ignoring.
P.S. If in doubt, look at the shape of the lowercase w. The rendered tex: block font is not a lighter version of Cascadia; the slabs are characteristically Courier.
We are saving rendered comments to the file system cache and we store info about the font used for rendering. You can see it (and clear it) here:

I remember I wasn't able to get information about comments font nicely and notifications about font changes didn't work. See this atrocity: https://github.com/kindermannhubert/VsTeXCommentsExtension/blob/017bc9eb04abb8825b0bcbb1266cbd6936b312f8/VsTeXCommentsExtension/VsSettings.cs#L166-L174