Chrome extension to make google to dark theme.
Output:
The result of this plugin as shown in following snapshot.
Steps to install darkgoogle plugin in chrome browser.
Step 1: click customize and control google chrome tab(right top in ur chrome browser)->go to Settings as show in follwing snapshot. 
Step 2: Then go to extension tab, tick/enable developer mode as show in following snapshot. 
Step 3: After enable developer mode. click on load unpack extension as shown in following snapshot 
Step 4: It will open up a file broswer, navigate to your source of darkgoogle folder and select. 
Step 6: If you want to modify your source, modify it and check your result by clicking Reaload(ctrl+R) as shown in following snapshot.
