Gmail is now skinnable. It hasn’t been rolled out to GAFMD accounts yet, but looks like it’s available to all standard users. Most of the themes are actually pretty nice; although I won’t see them much as I rarely use a web-client for email. For when I do though, these are some nice new options. The best change is simply how they tightened up the interface. They don’t provide the option of creating your own yet. I wish the themes persisted across the other apps (calendar, docs, etc).