system
A chat on subreddit /r/pcmasterrace
human
It’s an optical defect that shows up due to light rays of different colors not being focused at the same point. Typically it’s either a purple fringing along the edges of objects or green/magenta fringing just in front of/behind whatever is in focus. It’s annoying that someone thought it was necessary to make this into a video game effect since it’s very much an undesirable thing in photography and videography.
gpt
&gt; It’s annoying that someone thought it was necessary to make this into a video game effect since it’s very much an undesirable thing in photography and videography. 

This is what I don't get about chromatic aberration, who wants this? In photography if you have a camera/lens that's got light fringing, that's considered a bad thing. Yet for some reason studios think people want it in their games.