Default bright white background hurts my eyes after a couple of hours.
Obviously, something needs to go into "com.apple.CoreGraphics.plist" to override whatever the system uses to set colors on start up.
I've got 1 week to find an answer to this ridiculous issue or this mac pro goes back in the box and I resurrect my old Redhat system.
Please do not reply to this post say you don't know the answer or have any useful information pertaining to the original problem, or to say that the colors are not changeable, or explain the "DisplayUseForcedGray" and "DisplayUseInvertedPolarity", or, indeed answer a different question that was never posed, or explain that I can use CTRL OPTION+CMD8 in order to toggle "DisplayUseInvertedPolarity", or to say that I should give up as it can't be done. NO, I've not been doing this for 20 years and had countless posts flamed/hijacked by mindless (well meaning?) individuals.
I will patch/hex-edit the appropriate binary to change the 'hard-coded' value my self, but I'd rather not have to go to that length as I can't believe Apple are so arrogant they don't feel the need to give the user access to such fundamental parameters, even on STONG HEALTH AND SAFETY GROUNDS.
There is a way. It just depends where you look.
08/Pro/2.8, Mac OS X (10.5.6)