This is awesome, congrats @eirannejad. Very exciting news indeed 
From a very quick go, I don’t really have too much feedback yet, other than the visual design appears to be largely identical to the Rhino 8 versions. Where in your videos above, the Mac version looks more minimal and pleasing (to me), than the Windows version:
With the top menu bar obliviously being a given, but I think the thicker borders and top left icon are also key culprits, as discussed way back in 2023 here:
If at all possible, I’d still prefer a slightly leaner/minimal overall design/structure, ala this old mock-up:
Edit: Also, reusing the design of the GhPython component icon for the new CPython component might be a bit confusing (i.e. as GhPython was/is IronPython). Maybe a modified CPython logo would be more appropriate.
Edit II: Think I didn’t have enough coffee, I can see now that the WIP/GH2 CPython logo is more like a combination of the old two, I dig it:
