Gnome Shell Theme inspired by Tron Legacy Movie. Thanks to half-left deviantart user. I Installed it in Ubuntu 11.04 Natty Narwhal and it’s working fine.
Download Tron Legacy Theme for Gnome Shell
deviantart link Here.
Backup Theme directory before going further with installation
Extract the files to this path
Then restart gnome shell
by ALT+F2 then type r.
For further installation instructions included on the Download link.
Also here’re few screenshots for it installed on Ubuntu 11.04 Natty Narwhal