Roy surveying his domain, peering out into the dark which for him is more of a monochrome due to the very sensitive black white receptors in his eyes.
I would love to see a night video colorized to match what cats perceive in low light conditions. I suspect it would look a little like a grayscale thermal image minus the thermal part.
As you know cats, like dogs, only have two color cones, unlike our 3. But unlike us they preprocess cone cluster data.