“It’s not just an affectation and it’s not artistic licence,” says Antico. “I’m actually painting exactly what I see. If it’s a pink flower and then all of a sudden you see a bit of lilac or blue, I actually saw that.” Antico is a tetrachromat, which means she has a fourth colour receptor in her retina compared with the standard three which most people have. While those of us with three of these receptors – called cone cells – have the ability to distinguish around one million different colours, tetrachromats see an estimated 100 million. According to Dr Kimberly...
