Zukitwo is well designed great light theme, Basically aim of this theme is to make GTK and Gnome-Shell looks better like Gtk theme(Adwaita Cupertino). This theme perfectly works with all resolutions bigger screens or you can use this with smaller screen. This theme support GTK 3.6/3.4 and Gnome Shell 3.8/3.6/3.4.
Awoken icons used in screenshots.
You can use Gnome-tweak-tool or Ubuntu-Tweak to change icons and themes.
To install Zukitwo theme in Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal: