Here’s a rather amusingly written article on color perception https://www.geeksaresexy.net/2019/12/19/did-you-know-the-color-magenta-does-not-exist/?fbclid=IwAR0Y1nc-dI_FRhso0YFMlQNrrC32LfNASV-KuMrJ54sQ9a35SOmkcaEVb10
Which led me to look up impossible colors https://en.wikipedia.org/wiki/Impossible_color -- Larry Colen l...@red4est.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.