that was the idea and this is such a huge project that I kept as much variables static as possible. I want the app to feel close to what people already know - and that applies to me as a user too (I want to use the app too after all!)

IANAL, but I'd be surprised if the UI icons are not covered under copyright.

That's true but some years ago that I tried to develop a very similar product/project I went mostly on the same path. as another comment states, UI is a great place NOT to re-invent the wheel

Also changing CAD programs is already hard enough and having very similar UI/UX is a feature, not a by-product of agentic coding.

Also in many cases I honestly can't think of a better way to do stuff