Does this tricky “Gotcha” ruin the shading and colors in your drawings and paintings?

Hint: Look closely at these squares...

The answer is...

This is an optical illusion that you face in your drawings everyday. In fact, both squares are the exact same color.

Don't believe it? Drag that square above with the hole in the middle over the two squares and you can see for yourself.

It can be extremely difficult to see the change between values—and where there is no change in value, your image goes flat.

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