Skittles surrenders the rainbow for Pride in London: “So this is kinda awkward, but we’re just gonna go ahead and address the rainbow-coloured elephant in the room. You have the rainbow … we have the rainbow … and usually that’s just hunky-dory.
What colour is the letter F? What texture does a Mozart symphony have? Can you taste the rainbow? If the only thing such ideas suggest is the Skittles ad campaign, you're probably not synaesthesic. But for up to four per cent of the population, such questions make perfect sense.