This looks great and polished. I have just one usability problem - with all panes having the same color and no visible border, it is very difficult resize them. Especially bottom panes (find, console) which have some confusing extra space on top.
I really wish emacs / vim didn't fall behind as much with all these gorgeous themes. Like even the solarized theme for emacs was pretty lack luster compared to the atom one until I went in an did some manual adjustments.
Spacemacs was pretty impressive when I took it for a spin a while back, still ended up back on pycharm/phpstorm though (just too functional after a lot of use).
Excellent looking theme. This and the ITG Flat theme are two of my favorites.