This is my first illusion so don't judge to harshly. Start with the "Spot Color" slider at 0 to see the effect before you start experimenting. When you press start, look at the cross in the middle. Pink spots will dance around, as well as a gap. In a few seconds, the gap will become teal! (Yes, this is a real illusion not some elaborate code)
Please put the slider back at 0 when you are done, so the next person can enjoy all the benefits. Music: Anywhere Is, by Enya. Created for the Paint the Sky With Stars Album.