Saucy

Hey, guy at the Taco Bell window.

The other night we ordered two 7 layers and diet pepsi.

You asked if I needed sauce.

"Yes. Hot sauce."

It turns out you gave us 11 hot sauce packets for 2 burritos.

You rock.

Cheers!

No. It's not an illusion.

This is an image I made from using the Gimp to auto-white balance each disc in the image to show that in fact the color of the middle squares would be the color you mistakenly identify them as. Green and orange. Here is the original.
In fact there is a lot of incorrect usage of terms in these illusions. Especially the forms section. The examples talk about the lengths and angles of the objects pictures. But the are talking specifically about the image's lengths and angles. Cheers