This is a silver gray GTK3+Shell theme, based on Adwaita, for those who prefer light GTK themes with neutral colors. A GTK2 theme, based on the Murrine and Pixmap engines (provided by gtk2-engines-murrine and gtk2-engines-pixbuf in the Debian-based systems) is also included. This version brings compatibility for Gnome 3.8 and latest GTK.
Awoken icons used in screenshots.
You can use Unity Tweak Tool, Gnome-tweak-tool or Ubuntu-Tweak to change themes and icons.
First of all change scrollbars type to normal, to encounter the black background issue:
To install GnomishGray theme in Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal: