Thank you so much for those that have contacted me offlist. Next step is the experimentation -- you'd imagine. So I installed the profile in my Windows 10 PC and turned to Photoshop, naturally ;-) There must zillions of "advanced" proprietary packages that offer all kinds of "advanced" tools for those who thrive on multi-color profiles? So, I took a grayscale image and converted it to the muti-color profile. After conversion, I end up with three extra channels, Red, Green and Blue. Fair. Two things. First, read the CIE Lab values returned good neutrals (a* and b* = 0). Second, the appearance of the image didn't evoke anything neutral but more like "red" cast? This may be more a question for the Photoshop Forum on Adobe's web site but, in case..., is the user expect to "Edit" the RGB Channels after conversion? To obtain a correct color appearance? It would seem that way... Best / Roger -----Original Message----- From: colorsync-users-bounces+graxx=videotron.ca@lists.apple.com [mailto:colorsync-users-bounces+graxx=videotron.ca@lists.apple.com] On Behalf Of Roger Breton Sent: 21 décembre 2015 11:12 To: ''colorsync-users?lists. apple. com' List' <colorsync-users@lists.apple.com> Subject: Multi-color ICC profiles Hi all, I'm looking for sample multi-color ICC profiles, for educational purposes. I have not had the opportunity for profile a printing press this way yet myself :( If you happen to know a link where I could find some, please, let me know. Or if you have one you can share. Thank you so much in advance, / Roger Breton