I wasted a few enjoyable minutes doing just that. Then I realised that if I revisited a circle I'd already coloured in, it would change colour. The thought leap

I wasted a few enjoyable minutes doing just that. Then I realised that if I revisited a circle I'd already coloured in, it would change colour. The thought leaped into my head: "Can I make all of them the same colour?" I realised I was standing on the edge of the abyss, and closed the page.