Hi Sebastien,

>>  1. engrave-faces-generate-preset generates emacs colors such as
>>     `:foreground “grey70”` which are not supported by
>>     engrave-faces-latex-gen-preamble-line and co.
>
> I’ll see if I can incorporate this into engrave-faces v0.3.1.

Done.

>>  2. `minted` supports a `mathescape` option to render math content
>>     inside code. `fvextra` supports the same option, but maths
>>     characters are escaped by engrave-faces-latex-face-mapper.
>
> I’l also take a look at this :)

Implemented in engrave-faces-latex, but not worked into ox-html yet. If you
could check it out on the engrave-faces-latex side and check it’s behaving
sanely, that would be helpful.

All the best,
Timothy