Lars, We have been down this road, and I have made precise and constructive suggestions a bunch of times. As regards core OS routines, my suggestion to improve color management in user apps has been that we design an OS method such that one can see immediately which transforms (profiles, intents) have been cumulatively applied to an image, or propagated through a file. A programmer will never notice from a *look* at his screen which transforms are being called. You can of course say that this is now *impossible* and it may well be, but then why stick to a design which just cannot be implemented and verified except by the most specialized of specialists? We have run through years of bug after bug in the profiled inkjet printing field in Mac OS, please don't tell me this isn't true because everyone here even including Andrew Rodney has noticed it, with profiled printing becoming essentially irreproducible for a period, exactly because no diagnostic facilities were ever embedded in the OS, because none were ever envisaged at design time by the ICC, in the interest of no vendor ever ever ever being *provably* designated as responsible for a color management failure. Edmund On Mon, Jan 7, 2013 at 8:44 PM, Lars Borg <borg@adobe.com> wrote:

Edmund,

Right, it's far from trivial. It would be great if you could contribute to a solution to the problem.

Lars