Feature Request: mbox environment in math mode

[ytakashina]

The mbox environment is not available in math mode. I think introducing \mbox environment helps non-English writers create more reader-friendly slides for their audience.

Example:

$$
\ln\frac{p(x|y=\mbox{異常})}{p(x|y=\mbox{正常})}
$$

[yhatt]

We're making a clean sweep of piled up issues. \mbox is not supported in KaTeX. (https://katex.org/docs/support_table.html#m)

Essentially this is an issue of KaTeX, not Marp. It's better to report to KaTeX issue tracker.