Hi.
I've been sitting on a backend patch for probably most of the year, that greatly improves the quality of positional/fixed dither -- against GIMP 2.0.x. I was hoping to find time to get a GIMP 2.1.x build working and forward-port the patch, but that didn't transpire and it's likely too late for 2.2 now...
I will attempt to file the 2.0.x patch in Bugzilla some time soon and if anyone cares they can forward-port it (hopefully the dithering back-end didn't suffer many changes during 2.1.x).
Thanks, --Adam -- Adam D. Moss . ,,^^ adam@xxxxxxxx http://www.foxbox.org/ co:3