How to turn your background color black
For Google Chrome:- Get the Stylish add-on .

- Go to this page and select "Install with Stylish".

- You're done ! Check for updates frequently !For Firefox:- Get the Stylish add-on .

- Go to this page and select "Install with Stylish".

- You're done ! Check for updates frequently !For Safari:- Get the Stylish add-on from this page .

- Go to this page and select "Install with Stylish".

- You're done ! Check for updates frequently !Courtesy of Genius moderator Magotox.