Everything else covered: four spots on the strawberries, gray with a little blue.
Tricks of color
Gray strawberries
What color are the strawberries?
They look red, but there is no red in the picture: the strawberries are gray.
Why? Your brain sees that everything is tinted blue-green, as if under a colored light, and takes the tint away to find the real colors. Strawberries that are gray under blue-green light must be red. Akiyoshi Kitaoka made the first; this is our version.
Picture: ShakataGaNai, colors changed by Science Playground, CC BY-SA 3.0 · Wikipedia(opens in a new tab)