@BLOKKSTA90 Install Wine (Wine is not an emulator) that can load some windows programs. I'm not sure what the latest version is but here's the main website: https://www.winehq.org/
Install that by following the instructions here: https://wiki.winehq.org/Ubuntu I'm not sure if they'll translate or work as is, but if you run into trouble, here would not be the place to ask for help with installing Wine.
Once wine is installed, install f.lux just like you would on a windows computer and download the .exe file.
@lorna Since Android Apps are on their way, would f.Lux work on ChromeOS on the system level rather than an extension? I noticed this flag enabled, I'm not a programmer but would love to see F.lux on ChromeOS.
Color calibration of the display Chrome OS
Allow color calibration of the display if the display supports the feature. #disable-display-color-calibration
@Cruppellarius Yes, but I cannot recommend f.lux, unless you'd like to run it through Wine. A good alternative that got updated and finally accurate color tables since 1.9 is redshift, and it does an excellent job of matching f.lux on settings that I have tried such as 5500K and 2700. I hope the f.lux has time to work on the linux build when they get done with windows and mac variants.
Found another option to f.lux, apart from redshift. It is called Iris and you can install it or you can download the micro version which is the one I am using. It is a portable very little executable with a couple of scripts (day mode and night mode), and you can also create your own very easily.
I also have the same question several months ago. I recommend you use the redshift instead. There is a easy method to pre-set the location of redshift, so it will automatically start even without the internet connection.
The second answer of the following link gives you the solution. link text
A 64-bit version with multiple monitor support is available here: xflux64.tgz
A 32-bit build with support for multiple monitors is available here: xflux-pre.tgz
Download one of those two files. Then, you will want to extract that, like a zip folder. So right click the downloaded folder and click "Extract here" or if you're on KDE choose "Extract to folder "xflux-pre"".
Then, drag the xflux file inside the new folder, into a terminal. Or do cd ./home/downloads/xflux-pre/ or something like that to get into the folder.