WOW-2 theme is not much light and not much dark, it is low contrast theme which looks better on desktop and gives nice look to eyes. This theme is made for GTK 3 and 2, Unity, XFWM4 and openbox. There are two versions of this theme one is light panel for dark color icons and other is dark panel for light color icons, You can select relevant to your icons.
1st WOW-2 for chrome/chromium (Click Here)
2nd Install Malys-ex Icons or check icons collection
To install wow-2 theme on Ubuntu/Linux Mint (Press Ctrl+Alt+T) and copy the following commands in the Terminal: