Do you know about Fast RMX's "Chromatic Aberration" setting?

Have you checked out Fast RMX's settings? If so, you might be wondering what the 'Chromatic Aberration' setting does. It's actually enabled from the start, and gives the game a slightly softer, more blurred appearance. You can turn this off for a sharper, crisper image.

Also worth noting, if you disable the Dynamic Camera Exposure option, the lighting and bloom effects will be dulled down a bit.

from GoNintendo