What is chromatic abberation in games?

Chromatic aberration in games is an optical distortion that occurs when different colors of light are refracted differently through a lens, resulting in a visible color fringing around the edges of objects. In video games, chromatic aberration is often used as a visual effect to add a sense of realism, depth, or immersion to the game world. It can also be used to create a sense of motion blur, giving the impression of speed or fluidity in fast-moving scenes. However, excessive or poorly executed chromatic aberration can create visual discomfort or distract from the gameplay experience.