I think that we should have Color Correction Method and ICC Intent features
but not dmDitherType.
The Color Correction Method feature should have the three settings that
Norbert outlined (none, device, system). This feature will allow a user to
enable and disable color correction. If a device has both an ICC profile
and device color correction, then the user can also choose between the two
methods.
Since we are saying that we support color correction using ICC profiles,
then we should support the once basic ICC control which is intent. The ICC
Intent feature should have four settings (perceptual, media-relative
colorimetric, saturation, ICC-absolute colorimetric). These settings are
defined in the ICC profile specification. This feature will allow the user
to direct ICC profile-based color correction for their particular print job.
I don't think that we should have a feature associated with dmDitherType.
It's use in Windows is not clear - does Windows ICM do the dithering or is
it just an indication of how the driver or device is supposed to do the
dithering? This is a global setting whereas we already have object specific
settings so what would the interaction be? I think we should just leave
this out unless someone can come up with a clear case for adding support.
Jim