I’ve recently discovered, by reading several threads on the Darktable and RawTherapee forums, that under OSX there is no way to specify a custom monitor profile to display the processed images with the GTK toolkit (and probably the same is true for Qt).
The toolkit required image data in sRGB format, and internally takes care of the conversion to the system-wide monitor profile.
However, this seems to be a strong limitation when it comes to professional-level image editing with FL/OSS tools under OSX, because there is no way to take advantage of wide-gamut displays in such a scheme.
Shouldn’t we try to find a solution for such a limitation? Any idea where to start patching the GTK code? I’m willing to do tests and development under OSX. Maybe we will manage to come up with a good patch to propose to the GTK developers…