I've written some concept code that would allow buttons to be rotated around a frame's center and/or be displayed on an angle and/or an arc. Initial button positions would still based on rows and columns, but with additional options...

screenshots: https://imgur.com/a/NP5AtFb

I wrote this mostly mostly out of curiosity. No issue if you don't want to include it, but if I could make the frame resize with the rotation and arc, would you want to include it?

Note: as mentioned in my first comment, this was meant as concept code. If you wanted to include this functionality within Domino's, I know that it could be written into the standard button bar layout code. No need for the additional functions.

This is neat, but I also don’t think it would work well with sticky bars etc.

I don't think I'll include it for now.