GZL UI Theme

This is the blackest minimalist UI theme for Atom. GZL UI is based on original dark UI theme. But I improved it and I designed [GZL Syntax Theme](http://github.com/Guizilla/gzl-syntax).

The first asset of a dark theme is surely preserves your eyes while you program.

In a second step it is also a good way to save your computer's battery when you are not plugged.

In addition to all this, the black background allows a perfect contrast with the text and thus an excellent readability. It is therefore quite natural that I continue in this way for [my syntax theme](http://github.com/Guizilla/gzl-syntax).

For those who want to know which font I use, it is San Francisco by Apple.