Check out CARI. It's not GUI-design specific, but they do categorize a number of industry design styles going back to the 1960s, some of which encompass GUIs.

Check out CARI. It's not GUI-design specific, but they do categorize a number of industry design styles going back to the 1960s, some of which encompass GUIs. https://cari.institute/aesthetics https://cari.institute/aesthetics