F.lux - an app your eyes will love

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http://www.linuxandlife.com – If your eyes feel more tired when using the computer at night, you should consider installing f.lux. F.lux is a program that changes the color temperature of your monitor based on the time of day. It makes your computer screen look like the room you're in, all the time. When the sun sets, it makes your computer look like your indoor lights. In the morning, it makes things look like sunlight again. At night you will get a more orange, warm temperature computer screen. To install F.lux on Ubuntu or similar distros, you can use the following commands: sudo add-apt-repository ppa:kilian/f.l (Distributions)