I just don’t get it - let’s spend so much money, development and hardware to render the most clean game possible, avoid aliasing and increase detail… And then let’s enable color distortion as if we were vieweing the game through a 1930’s cinema projector. Add in some film grain too! This saves me the effort of covering my monitor with dirt!
Make sure to make those options enabled by default on every game you release too!
I always turn it off. In photography CA is a bad thing. All lenses have it but a poor lens design will have more if it. It’s a thing that everyone wants to elimate to have a good photograph.