Install GnomishGray theme on Ubuntu 14.04 Trusty/13.10 Saucy/13.04 Raring/12.10 Quantal/12.04 Precise/11.10 oneiric/Linux Mint 16/15/14/13/12 and other Ubuntu based distributions (GTK + Gnome Shell)
GnomishGray is a silver gray GTK3+Gnome-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 is compatible with Gnome 3.8 and latest GTK but PPA contains all versions for previous Gnome + Gtk versions. You can use Unity Tweak Tool, Gnome-tweak-tool or Ubuntu-Tweak to change themes. Fs-icons used in screenshots.
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:
That's it
GnomishGray is a silver gray GTK3+Gnome-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 is compatible with Gnome 3.8 and latest GTK but PPA contains all versions for previous Gnome + Gtk versions. You can use Unity Tweak Tool, Gnome-tweak-tool or Ubuntu-Tweak to change themes. Fs-icons used in screenshots.
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:
That's it
Source: GnomishGray