If the first batch of Chrome themes didn't include too many beautiful themes, you can now choose from a gallery of 95 themes designed by top artists like Jeff Koons, Yulia Brodskaya or Wes Craven. "We invited leading artists, architects, musicians, illustrators, filmmakers and fashion and interior designers from around the globe to create artwork for an unusual canvas: the modern web browser," explains Google. Apparently, the artists worked for free.
Chrome's themes are loaded almost instantly, so you don't need to restart the browser. Unfortunately, you can't pick a list of favorite themes or manage the themes you've already installed.
I've tried some of themes, but I went back to the default theme, which looks great and doesn't try too hard to be attractive. It's almost invisible.