[citation][nom]lifelesspoet[/nom]Awaiting a mouse gesture plugin so I can finally switch from opera. Love both, but opera has been lagging in speed and stability lately.[/citation]
You could try this extension:
http://www.chromeextensions.org/appearance-functioning/mouse-stroke/
But you need to use the "dev channel" version of chrome. Also, it is nowhere near the sophistication of Opera just yet.
[citation][nom]michaelahess[/nom]not so integrated with themes, mine doesn't apply a single element under Ubuntu. It looks just like the windows version. Not even gonna mess with it, I'm just happy it's out and seems to work.[/citation]
There is a GTK integration for Chrome, but it is disabled by default.
You can activate it in the "Under the hood" settings, but I usually prefer to use one of the themes already available for Chrome, as the GTK integration makes Chrome slightly uglier and just a tad slower on start-up.