These are some awesome improvements. I came up with something similar after watching either Procreate or Sketchbook or something video, I can’t remember exactly which.
A while ago I opened up a feature request Ellipse assistant tools and I’m still open to work on this, but I need some guidance, cause honestly Krita has a pretty complex code base and I don’t want to waste time not knowing what to do.
So if any devs are open to get me on the right path to add these features I’m willing to look into it.