Every time I am trying to teach a part with the camera, I am always asking myself what is the best background I can use to teach. I understand that we need good contrast with the part. So my first guess is to look at the subtractive primary colors and make sure that the color of the part and the color of the background are not shared region in the circles making this pallet. So for example I used a cyan background for yellow parts. Or avoid using green on yellow for example.Thanks to Wikipedia for explaining colors to me again! The time I did some art at school is a bit far behind me! Any tips you pros have?Is black and white combination the best?