"Aristo" for jQuery UI
taitems.github.com
taitems.github.com
http://dtrejo.github.com/aristo/
Specifically, this one uses inner shadows to generate things like the slider bars without background-image, and most everything else is CSS3 gradients.
The blog post calls jQuery UI's default themes goofy--I won't contest they look dated, but you can get from there to near-Aristo quality by 1) decreasing the border-radius in ThemeRoller to 3px or 2px 2) only using handsome gradient backgrounds and 3) adding some more CSS rules to just add some inner glow, box-shadow and text-shadow on the better browsers. In fact, ThemeRoller could be fairly easily updated to support such things from within the graphical designer.
For example, this app editor interface is pretty much all vanilla jQuery UI, with only the slightest of enhancements in a separate file so themes could potentially be swapped out underneath:
Now maybe I can just start using the jquery UI version instead of the version I semi-maintain, as it probably does cross browser compatibility much better (in addition to a greater selection of widgets :)
Edit: looking at the network, this one supports jquery 1.5.1: https://github.com/AugustCo/Aristo-jQuery-UI-Theme
It's actually pretty easy to make better jQuery themes.
http://gemdash.tumblr.com/post/3941893390/cupertino-a-jquery...
It's not great but I think it came out pretty good.
edit:
Chrome 12 Canary: same as Chrome 10
IE9 beta: Handles on top, buttons look fine, though no text shadow. "<>" are poorly anti-aliased.
IE9 beta in compatibility mode: auto-complete on top (?), but buttons (aside from href) are full-width. "<>" are poorly anti-aliased.
FF4 rc: Handles on top. "<>" are poorly anti-aliased.
FF3.6.15: Handles on top. "<>" are poorly anti-aliased.Also, many mobile platforms have web browsers based on WebKit. Numerous differences can be observed between how these browsers render web pages. See PPK's "The Great WebKit Comparison Table" [0].
So it's not a browser problem.
Seriously, it does and most of the other controls work fine too.
A quick note though: Hitting the 'Change' button in the modal dialog does not get rid of the page overlay, making everything inaccessible. (Chrome 10)
I'm impressed everything else worked so well, Opera is usually neglected.