Reveal JS : How to set text color for a specific slide?

[wilcar]

I have slides with custom background. How to also set a specific color text for this slides ?

[jjallaire]

You can set the background-color explicitly to let Reveal know that it should invert the normal text color (e.g. use white text b/c the background color is dark). See https://quarto.org/docs/presentations/revealjs/index.html#slide-backgrounds