Claws Mail is a GTK-based e-mail client for the Linux platform, formerly known as ‘Sylpheed Claws’.

The ‘Coon’s Blue’ theme includes a complete set of graphics for Claws Mail 3.3.0 and above. It can be used as a theme or to replace the graphics in the Claws Mail source code. Graphics for the tray-icon are also included.

See the Claws Mail site for more information. The theme can also be downloaded from this site.