Though Gmail has built-in feature to theme your Gmail, you will me amazed to see this metallic theme achieved through a tiny Firefox extension called, Google Redesigned. It not only redesigns the Gmail look, but also the login form, Google Calendar, and Google Reader. If you have a login ID at Mozilla, you can download the extension from Mozilla Add-Ons Repository here:
A journey towards Happiness 
nice dude…
Nice to know about Google Metallica style… Article is informative…
Keep writing…
tAke cAre….
Bhatre,really nice application kanri,thanks……:)
use Better Gmail addon. Can do many things.
@Pramod. yes there are lot of addons available ,and can do amazing work. Anywayz.. thanks for the suggestions guys 🙂
Nice Add-on.. thanks for sharing Karthik.. 🙂