is there a good solution to center or right align text in the richtext editor?

is there a good solution to center or right align text in the richtext editor?

The idea behind Portable Text is that the presentation layer should decide layout. In the original design we assumed that text-alignment was a presentation concern, and didn't include it in the spec. We might reconsider this.
Meanwhile you can make a custom

style

. e.g.

normal+right

 and implement alignment in your frontend with the block serializer.