Your eyes see color by contrasting it with other colors, so when the square slides back and forth it appears to change color.

Your eyes see color by contrasting it with other colors, so when the square slides back and forth it appears to change color. | Funny Pictures, Quotes, Pics, Photos, Images. Videos of Really Very Cute animals.

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Your eyes see color by contrasting it with other colors, so when the square slides back and forth it appears to change color.

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