What is “redshift” Package?

Adjust color temperature of your screen according to your surroundings
For more details: http://jonls.dk/redshift/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install redshift.

  brew install redshift

Now, use redshift!