Frost Gnome Shell theme designed by gunnarflax deviantart user. the theme originally inspired by Minty Gnome Shell theme. The Frost theme has some noticeable changes such as the color scheme, top panel no longer transparent, workspace switcher design, and the theme is compatible with Gnome 3.2.
Before installing the theme, make sure you backed up current theme folder in the following path
/usr/share/gnome-shell/theme
Download Frost Gnome Shell Theme
Then extract the zip file, and paste the Gnome shell folder content on the following path.
/usr/share/gnome-shell/theme
Further information about the theme included Here.