A manga page guides your eye with panel size, contrast, and careful spacing....

https://highstylife.com/why-does-too-much-movement-on-screen-make-it-hard-to-follow-the-main-event/

A manga page guides your eye with panel size, contrast, and careful spacing. Mobile casino screens face the same challenge: keep buttons readable, make the main action easy to spot, and avoid clutter on a small display