Custom format to captions

[nipnipj]

How can we give a custom format #| fig-cap:?

[mcanouil]

Since your question is not really "general", could you please move it to the "Q&A" category (using GitHub on a desktop browser)?

You need to provide more information/context if you want to get an answer.
What are you calling "custom format"?

Is the following example from the documentation what you want? https://quarto.org/docs/computations/r.html#chunk-options
#| fig-cap: !expr paste("Air", "Quality")

[nipnipj]

Bold and italic on selected words/expression will suffice.

[cderv]

You should be able to use Markdown for that. I believe this is supported, or should be. Did you try it already ?

---
title: Test
---

```{r}
#| fig-cap: I will be **bold** or _emphasize_
plot(cars)
```

[nipnipj]

Does it work for #| tbl-cap: in a gt table?

[mcanouil]

Best/shorter way to find out, wouldn't it be to try it?

[nipnipj]

It is not working for me.

[cderv]

No for tbl-cap it is not working as expecting in all tables - related issue #2573