I usually sit in front of my PC for long hours. It is always better to have least effect on my eyes and I used to reduce the brightness and adjust colors for that. Now, I have discovered a software to do just that. It claims to adjust the screen color temperature according to the surroundings. It is called Redshift and can be installed from the PPA ppa:jonls/redshift-ppa. To install it on Karmic and Lucid, open up Synaptic and navigate to Settings>Repositories>Other Software>Add and paste in “ppa:jonls/redshift-ppa” (without quotes) and then close it, Reload the package lists by clicking Reload in the Toolbar and then search for redshift and install it. It is not available for Maverick Meerkat now, but you can install it by following my earlier post. After installation, you can run it by invoking the following command from the terminal: Continue Reading