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Well, you're not a modder from Heroes of Might and Magic V, so it's understandable.
New here? I'm Roha — want a quick tour?
The secret is revealed!
So, against the background of an asymmetrical zebra with rainbow colors, if you tilt your head from a vertical plane to a horizontal one, those who see the White+Gold view in the normal position will see Blue+Black, and vice versa! 8)