The profile body background color and box background colors are now changeable and have partial transparency selections from fully opaque to completely clear.  Now you can setup your profile to show off more of your favorite background image while retaining readability of your profile data.  The look you want is all up to you!

The different layers' colors will sum together too in a sort of stained glass effect.  For an example, check out CelticCurls profile.  If you have already selected a background image, then your profile will be set to partially transparent by default.

You can access the new settings under My Profile|Customize Profile.  There are new options to set colors of hyperlinks, box title backgrounds, and box title fonts too.