Italicize individual letters; n → 𝑛

[fuglede]

It would be nice if individual letters were italicized, as one would normally do in mathematical text. The relevant Unicode block is given in https://en.wikipedia.org/wiki/Mathematical_Alphanumeric_Symbols

But maybe there's a reason you don't already do that?

[fuglede]

I see that there's a translation for \mathit{n}, so that's useful; maybe that should be the default? For what it's worth, I wouldn't normally expect $n$ and $\mathit{n}$ to be rendered identically (cf. examples here), but it's certainly close.