IMO this can be easily incorrectly identified as many people think some rock anemones are "polyps" - especially Mojanos - the colorful ones look very much like Zooanthinds.
Websites classify by color because a Gorilla Nipple or an Armor of God zoanthid is more marketable than a pink palythoa will ever be. Which in turn leads to a lot of confusion afterwards as people begin to argue over slight color variants with completely different names from 2 different sites.