That's an interestingly huge sprite sheet indeed. https://developers.google.com/apps/images/io/particle_hover-frames.jpg https://developers.google.com/apps/ima

That's an interestingly huge sprite sheet indeed. https://developers.google.com/apps/images/io/particle_hover-frames.jpg https://developers.google.com/apps/images/io/particle_hover-... I would guess it's because of the color palette maybe? GIF was only 256 colors last I used it (over a decade ago). SO maybe they tried a gif animation, noticed some weird looking graphical artifacts because of the color difference from background to foreground. Then decided use a JPG sprite sheet instead for more colors?