Casino game thumbnails should behave like profile pictures because both need to...

https://casinocrowd.com/how-to-design-the-art-and-title-as-one-composition-for-impactful-thumbnails/

Casino game thumbnails should behave like profile pictures because both need to stand out clearly at small sizes. On small screens, a single focal point grabs attention quickly. Use strong contrast and tight cropping to highlight that focal area