Twitter Bg Restorer is a chrome extension to restore Twitter's background.
0h31m (1 logs) from 15 Sǽd 227 to 15 Sǽd 227.
The extension was created when Twitter removed the ability to set the background image/colour of the homepage in 2015, instead giving everyone a boring, eye-searing white background. Given Twitter's monumental whitespace, this made looking at the timeline difficult.
There also exists a version for Mozilla Firefox.
It has been featured in The Guardian, VentureBeat Gizmodo and Lifehacker.