Not yet, sorry! RTL was our big feature addition that came with some significant departures. Tried to keep the breaking changes and overhauls to a minimum compared to the v3-v4 migration.

Typo in https://getbootstrap.com/docs/5.0/components/scrollspy/#exam...

"Thidd heading"

I'm curious about this too. In the past I've used the free themes from Bootswatch: https://bootswatch.com/

e.g. Flatly and Darkly can be swapped in and used as a light/dark theme easily.

Also, means your site doesn't look as generic as the base Bootstrap theme.