Had this dark background for years. It the only one I use that's easy and does what its supposed to. I especially like that it highlights text. I like to go through videos from channels I like on YouTube. With this extension if I have seen this video it highlights the video title so I know I have seen this video. It does it in other areas also but that helps alot and helps me keep my place in different sites and areas. The only problem is that ESPN.com doesn't work well with this extension. It screws the page up unless I do some maneuvering and even then it doesn't always work. If it could work well with ESPN it would be perfect but I have to disable it on there. Great extension though. If the ESPN situation changes then I can give it 5 stars. It looks good and works almost as good.