In short
Each entry separates what people assume, what can be sourced, and what stays unverified. That third part is the point: most motif genealogies online are confident well past their evidence.
- The Floral Shoppe bust is Helios, held in the Archaeological Museum of Rhodes. Who designed the cover is not documented.
- The palms come through Japanese illustration, not Miami: Hiroshi Nagai's 1973 US trip, a swimming-pool advert, then city pop sleeves from 1981.
- The checkerboard has no single documented origin — Memphis Design and early CGI both have a claim, and anyone certain is overreaching.
- Fullwidth text isn't letter-spacing. It's a separate Unicode block that exists so Latin type can sit on a Japanese grid.