Script Summary: Add classes to BODY when site-skin-specific selectors are detected. Works for Tropospherical, Celerity and Gradation.
License: (CC) Attribution Non-Commercial Share Alike; http://creativecommons.org/licenses/by-nc-sa/3.0/
This is meant to be used with Stylish styles modifying Dreamwidth sites skins. Please note that this purposefully won't work on secure pages.
Original version of this script: LJ Skins Class Adder. Thanks, S.