I have checked CUPS and colord support is in since 1.5.0-2. It is introduced by debian/patches/colord-support.patch. The patch is actually applied as one can grep "org.freedesktop.ColorManager" in /usr/sbin/cupsd and it tells that the file matches. So one would need some D-Bus debugging to check whether colord is correctly polling the printer info from CUPS.
I have checked CUPS and colord support is in since 1.5.0-2. It is introduced by debian/ patches/ colord- support. patch. The patch is actually applied as one can grep "org.freedeskto p.ColorManager" in /usr/sbin/cupsd and it tells that the file matches. So one would need some D-Bus debugging to check whether colord is correctly polling the printer info from CUPS.