I'm using xflux for about 3 months now and wouldn't want to miss it anymore. My first reaction was the obvious "Urgh, I'll never get used to this red tint". On

I'm using xflux for about 3 months now and wouldn't want to miss it anymore. My first reaction was the obvious "Urgh, I'll never get used to this red tint". Only 30 minutes later I was barely noticing it anymore. And on second day, after an allnighter, I realized that it really does reduce my eyestrain significantly. That said, the tool itself is not without flaws, at least not the linux version. I'd much prefer if I could just manually set the color temp without their latitude magic which is always off by an hour or two in my area. Also I'd want it to fade gradually instead of switching over in one fellow swoop. Maybe a fellow hacker can point me to a command line util that lets me manually set the color temperature in X11?