How did you implement the undo/redo logic?

I presume you don’t delete the entities on undo but hide them instead? Then you can show them again if redo is triggered?

Yep. And three functions is better than one for legibility even if one would be fewer lines of code

That’s what I was questioning. Why do do the work but then not make it accessible?

It’s a similar thought to this topic: https://lemmy.world/post/3179113

I’ll rephrase. Why require an editor? The most common viewers of SVG do not support layers

Why not export them rather than requiring people to install Inkscape just to view the files?