Graeme, It would be really convenient to have a tool to build an idealized TIFF of a chart from the actual spectrometer values. Something that does it from scratch would work, but I'm also envisioning an option to scanin that piggybacks off of the -d diagnostic option that just replaces the boxes with the ideal color. Of course, one would also have to tell it which profile to use and tag with / embed in the result.... Cheers, b&