WIP: Onion Skinning Prototype #107641
This is just a prototype to figure out how overlays work and how onion skinning is solved technically.
No thought is given to UX/UI. It just needs to produce the desired result
I have no intention of merging this PR, but the code is uploaded for reference and discussion
Deleting a branch is permanent. Although the deleted branch may exist for a short time before cleaning up, in most cases it CANNOT be undone. Continue?