anchor.diff:  
   ;;; LOWERED PANE
   
  -(defclass lowered-pane (border-pane permanent-medium-sheet-output-mixin) ())
  +(defclass lowered-pane (border-pane permanent-medium-sheet-output-mixin)
  +  ()
  +  (:default-initargs
  +   :border-width 2))
   
   (defmacro lowering ((&rest options) &body contents)
     `(make-pane 'lowered-pane ,@options :contents (list ,@contents)))
  
positive.code:               :initform :top
                :initarg :label-alignment
                :reader label-pane-label-alignment)
     (background :initform *3d-normal-color*)
     )
    (:default-initargs
     :text-style (make-text-style :sans-serif nil nil))
    (:documentation ""))
  
  
negative.code: ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  ;;; Boston, MA  02111-1307  USA.
  
  ;;; $Id: panes.lisp,v 1.162 2005/11/29 13:18:28 gbaumann Exp $
  
  (in-package :clim-internals)
  
  