These really need to be viewed with a CRT renderer IMO, as well as the Amiga art mentioned in this thread. The hard square pixels on the website aren’t quite representative of what these looked like on a contemporary monitor.
Up to a point, but the early Macintosh displays were quite crisp and clinical—certainly compared to something like a consumer NTSC or PAL CRT TV—as befitted a platform which was very focussed on WYSIWYG paper-document editing.