Dot is easy to imagine, and add a touch of color to it, it will not shy to be the show-man when you close your eyes, a green dot is visible, red dot is furious and beautiful at the same time and the black one is the super star among the dots family and the yellow one is more like the side kick for the super star, but the one which identifies itself as a misfit in the family is the white dot. This dot is elusive and hard to grasp even in your pocket of imagination. Try closing your eyes to imagine it and it will still be a super shy kid who does not want to come out of its shelf.
With black being the super star, obviously it takes all the limelight and the black dot makes it very hard for us to see the shy or the beautiful members around it. In a world of uniformity the dot's closer to the norm are lost in the obscurity of the majority. And the minorities may get all the love or they may get all the hate but they will not be ignored. Reverse the canvas the black is lost in obscurity and the white becomes the super star, I suppose the magic is in the key which opens the lock of canvas. Lock has the potential to metamorphose us into any world, but the key to realize the world of our choice is always with us the conscious beings.
Discrimination vanishes into the unknown, in an uniform and a plane world. Only when you add the additional dimension, we get the clarity and the dot get's its definition to get discriminated.