I have a wonderful blue tiedye muslin that I use (can be seen on the FP with the photo of the dal). I have two different styles of that one - one darker blue and one lighter blue. I also have a red one that I don't use very often because I find that the sensor has a hard time handling it (I get what appears to be a bleed that I cannot comprehend). Most of my clients - almost all of them - prefer black and/or white.

James