How Does This Is Not Yellow Work?

This is Not Yellow shows us that colors can change depending on where you look, just like how a toy looks different under a lamp than in the dark.

Imagine you have a red apple. When you hold it up to a blue light, it might look purple. That's because the light changes what color we see. In "This Is Not Yellow," they use special lights and shadows so the picture looks like it’s changing colors, even though it's just one drawing!

• The picture is drawn with black lines, but there are no real colors on paper.
• When you look at it under certain lights, the shadows and highlights make parts of the image seem colored.
• It's like when you color a drawing with crayons, if you use only black, you can still make it look red or blue depending on how you shade it.

It feels surprising because we're used to thinking colors come from paint or ink. But here, the trick is in the light and how our eyes see things, just like when a black cat seems to disappear in the dark!