There is an app who does this but you need both a custom theme and an exe to run in the background for it to work.
Here's one of the themes it works with, the exe is included as well
It's done by nguyenxuanhoa, but since he put some kinda mature filter on it you cant access the deviantart page without having joined and being over 18.
So i've uploaded it for you
On how to apply this theme look here: Theme - How to Apply Custom Themes
Hope it helps