A few thought on your new theme. I've been taking it for a test run and very impressed with the menu as it sits nicely over tabs and other obstacles in Moodle which tend to make some menus falter: namely the Language Editing page. So the YUI menu scores again.
I did a bit of debugging and found the same problem in this version which was inherited from the previous versions of Aardvark, as can be seen in the first picture in the screenshot below. It shows the Error message thrown up by the debugger. The problem comes from the php in the profileblock, it's an easy fix. (see Aardvark-Liteheaded
profileblock.php for the code.
Second picture shows the icons when Editing is ON. I'm not sure if the opaque background image is supposed to be offset like it appears of if that's in the design, but the icons could do with a bit of padding to push them up a tad.
Other than that, it's looking good.