I decided a while ago to try and create a theme that would be fast-loading, small in size, XHTML 1.0 HTML and CSS valid, and suitable for as many browsers as possible. The result looks a lot like what you might find used for a personal blog, so I called it blogstyle.

Features:
NO images whatsoever
Only 2 files - style.css and theme.html
W3C XHTML 1.0 HTML and CSS valid
11kb total file size (3kb zipped)
Fast load times - 3.92 sec for 56k connection.

View theme here

Download here

Will also be added to the Xoops Theme Library.