Chouku is a full color scheme for the Sublime Text editor.
Fire up an terminal and run this:
$ git clone https://github.com/droekm/chouku.git
$ cd chouku
Then start Sublime Text and open the packages folder using Preferences
-> Browse Packages...
, and copy the complete theme folder into it.
First make sure the Sublime Package Control is installed.
Then press Ctrl+Shift+P
and enter Install Package. Search for Chouku and click enter, theme will be automatically installed.