I've been thinking about this more. I don't think it's necessary to enable/disable colord; if people want gamma-correction, they can turn off color correction (through Color settings in Gnome, for example). I have my code set up so that it will pass everything through to the default colorramp_fill method if there isn't any active calibration. This can even be switched while redshift is running.

I think it is safe to assume that anyone with active color management does not want extraneous gamma correction. Same goes for brightness. Can we just leave it as is for now and see if it becomes a problem? I do not believe it will.

I would like for Redshift not to apply fake brightness changing, but I believe it was a requested feature, yes?