Hi again, Thanks Graeme for your reply on this questions. You wrote: >> 1) Is there any news about the upgrade to v4 color management? If not, >>what bad can the compatibility issues be and how do you handle them? > >There are no current plans to support ICC V4 in Argyll. There are no >compelling technical reasons to do so. If you need to deal with >V4 profiles, I'd suggest looking to lcms. I am interested in v4 display profiling, so lcms is of no use, as far as I know. The following document seems to suggest that v4 profiles are better than v2 profiles http://www.color.org/ICC_white_paper_6_v2_and_v4_display_profile_differences.pdf If this was the case, it would be nice to have v4 profiling in Argyll, at least for displays. Regards, Andrés Vattuone