Which theory of colour vision BEST explains why the colour of an afterimage is the complement of the original colour?

Question

Quizplus · Accepted Answer

According to the opponent process theory, there are three pairs of opposing colour channels (red-green, blue-yellow, and black-white) in the visual system. When we stare at a colour for an extended period of time, the cells that respond to that colour become fatigued and send weaker signals to the brain. At the same time, the opposing colour channels become more active. This leads to the perception of an afterimage that is the complement of the original colour. For example, staring at a green image will fatigue the green-sensitive cells and lead to an afterimage that appears red, the opposite of green.

Which Theory of Colour Vision BEST Explains Why the Colour