After living with this for 5 years, I have finally figured out the solution for the yellow plots. The root-cause of the yellow plots appears to be that the standard 256 color palette contained in a cluster coming out of an invoke node (FP.Get Image) become corrupted by the application builder on Mac OS X. The colors when running source code vs. when build into an application are very different. My workaround is to bundle the 256 colors directly in the source code. Of course, I am using 8-bit color. I would assume that if a higher bit-depth is needed, then a different set of reference c