[zerocrates]

Do you wear glasses? You could be seeing the effects of chromatic abberation.

I have fairly thick and high-refractive-index glasses and can regularly experience this phenomenon where different-colored text shifts in different directions, creating a "3D" effect. The Microsoft logo is a great example of this: if I tilt my head up the red/orange and blue squares seem to move toward each other, and the yellow and green ones away from each other, and vice versa if I tilt my head down.