03/08/2013: This extension is need of a major overhaul do to the new YouTube update. I'll try to get to it sometime in the coming months since YouTube still doesn't offer a proper dark version.
This extension reskins YouTube into a darker and simplified version. Every page including the video, browse, subscription, upload, and search pages is updated to match the style. The navigation fonts and buttons have also been slightly changed for better readability
- Esta extensión modificará o añadirá funcionalidad a uno o más sitios Web.