This is cool, I really like the params setting that does not need any style :)
Here is my previous user style borrowed from "Duck Duck Go Dark Compact " the cool thing about the theme is that it has a thin rectangle around the search results which makes it more clear. I switched to this one now and it also is very interesting, and separates the results well.

Nice!

I use one I found here:
http://voidzero.net/s

It's a really good idea to work with theme's