[petilon]

Hold on, don't give cred it to Windows 95. The beveled 3D look was the invention of NeXT. Windows 95 copied everything from them. https://guidebookgallery.org/screenshots/openstep42

[kbelder]

Amiga workbench was similar, although cruder, starting in 1985. I think it was just happening all around at that time.