Nautipolis theme for Thunderbird, with icons based on art gnome
Nautipolis is a free theme for Thunderbird, with icons based on art gnome. Nautipolis comes from two Greek words, the word Nautis (=sailor) and Polis (=city), meaning the City of Sailors.
Download it from the developer’s page and from inside Thunderbird go to Tools > Add-ons and from the icons at the left side of the search box select the option “Install Add-on From File”.
Locate the add-on where you save it, and restart Thunderbird after Nautipolis is installed. (Drag&drop from a file explorer window or even from the ‘Install Now’ link in Firefox into the Tools/Addons window also works).
You may also like to check how to customize almost everything in the interface of Thunderbird
