Slot series often share a visual style, but each release can differ. This...
https://super-wiki.win/index.php/What_Is_%E2%80%9CVisual_Identity%E2%80%9D_in_Slots,_Not_Logos%E2%80%94the_Practical_Version%3F
Slot series often share a visual style, but each release can differ. This article explains how to tell a series name from a specific title in thumbnails and small catalog images, and why familiar art is no reason to skip checking the rules.