The JSON file is called workingspaces.json, it can be either in the global iccprofiles directory, or in the user's ICC profiles dir (set in preferences).
The format is the following:
{"working_spaces": [
{
"name" : "ACES",
"file" : "/path/to/ACES.icc"
},
{
"name" : "ACEScg",
"matrix" : [0.7184354, 0.16578523, 0.09882643, 0.29728935, 0.66958117, 0.03571544, -0.00647622, 0.01469771, 0.66732561]
}
]}
if "matrix" is present, "file" is ignored. If only "file" is present, the matrix is extracted from the ICC profile. For this, we look only at the R, G, and B matrix columns and the white point set in the profile. Bradford adaptation is used to convert the matrix to D50. Anything else (LUT, TRC, ...) in the profile is ignored.
It is the user's responsibility to ensure that the profile is suitable to be used as a working space.
The output profiles now retain only 'Display' device class as well as
the Monitor profile - and they both have to have rgb color space, the
printer profile retain only 'Output' device class.
MacOS can use soft-proofing but due to undocumented feature of OSX, and
since Cairo assume that the image data are sRGB, the monitor profile is
forced to 'RT_sRGB'. A warning message replace the combobox for this OS.
== NONE of is no suported intent for the selected profile.
The Monitor profile list (in the Editor and in Preferences) shows RGB
profiles only, whereas the output profile list shows all profiles (RGB,
CMYK, ... anything!)
Bugfix: When switching to a new image, the image now use the selected profile and intent.
CMM at the end of the pipeline + sparse code refactoring
A new BPC checkbutton has been created in 'Preferences/Color Management'
and in the ICM tool. Better hanbling of widget sensitivity of the output
profile / gamma part of the ICM tool.
