Thunderbird is a total redesign of the Mozilla mail component to produce a cross-platform, stand-alone mail application using the XUL user interface language. It has many new features, among them the ability to customize your toolbars the way you want them. a new look and feel with a large number of downloadable themes which alter the appearance of the client, and the ability to add UI extensions.
The shock bundle is an extensive Web design bundle that offers 100 WordPress themes and templates, Web element sets, characters sets, 500 logo templates, and up to 20000 icons. The templates offer multiple color schemes and are fully customizable. All themes and graphics sets include layered sources.