The library writes its formulas between dollar signs, so the catalogue
generated from it carries them that way and the interface documentation
draws them as mathematics. Eighty-eight of them, in both languages.
Two things this confirms about the change made here. The reader that
guessed whether a code block held a formula has gone, and with it the
defect that led to removing it: a Rust example in a doc comment, in a
fence with no language on it and holding an equals sign, was being drawn
as a formula. It is drawn as a code block again, which is what it is.
The check on the formulas was looking for a script marker anywhere in
the text a page draws, which reported the escaped underscore of
`\text{body\_radius}` as an unattached subscript. It looks for the marker
where it would actually mean that, as an operator left in the output, and
the escaped underscore is what it is: the name of a parameter, drawn as it
was written.