Thelby,

Not sure, why you can't see it. I do know that trhere are also other colorshemes in use. Maybe you're glasses are a different color ?  Your glasses should be exactly the same color as the colors used in the picture.  When you close one eye you should only see the opposite color. Does that works for you?

I do noticed that for me it sometimes takes a while fot my eyes to find the focus.  Sometimes you have to "look around" inside the picture and suddenly you're eys (and brains) make the connection and the 3d effect pops up.  Sometimes changing the viewing distance also works. Maybe that helps.

You could try the software and make one yourself , the software allowes many different colors, then you can test it youself..