Firefox 3.0's new default Mac theme showed up today in the current trunk nightly (Minefield). The theme is very similar to Safari's.
Interesting look at evolution of UI and the semi-recent trend of adopting the web's content oriented interface. Definitely overlaps with the fundamentals of "admin debris" and related ideas.
Spot on.
Makes sense to me.
Gets my vote in Best Bug Reporting Screen.
Another interesting take on multi-select lists that uses checkboxes with labels and colors.