Comment 36 for bug 733233

Mark et al: the bug currently open for tracking a re-application of zero-fix borders is:

  bug #740579 "Wishlist: move to 0px borders now that Unity and Unity-2D/Metacity can cope"

and the in particular, the linked merge proposal, which contains additional discussion:

  https://code.launchpad.net/~dashua/light-themes/border-less.metacity.and.fixes/+merge/54439