Check out W21, our newest Roundcube theme release for both desktop and mobile browsers! Since the name is a bit of a mystery, let me explain. For many years we had a very popular Ensignia theme called Web 2.0. When upgrading the designs of our themes to make them look more modern, we renamed the theme to Web 2.1, or W21 in short.
W21 is one of the most smooth and modern themes in our collection. Its features are refined to perfection, which will be especially appealing to those with an artistic streak. Preview screenshots are available here.