Artisteer is a WYSIWYG website theme creation tool developed by Extensoft.
Artisteer automates creating Web templates, including a "Suggest Design" button, which randomly generates Web design and displays the design preview. The user can then adjust the design using variety of options, and export the design as either a Web template in XHTML and CSS format, or a WordPress theme.
Artisteer is available for the Windows operating system. A beta version of Artisteer for Mac OS 10.5 is making slow progress and can be downloaded.