anchor.diff:  	     :title title 
   	     :fullscreen fullscreen
   	     :no-frame no-frame
  +	     :context-profile-mask context-profile-mask
   	     :alpha-size alpha-size
   	     :depth-size depth-size 
   	     :stencil-size stencil-size 
  
positive.code: 	       (title "Clinch Program")
  	       (fullscreen nil)
  	       (no-frame nil)
  	       (alpha-size 8)
  	       depth-size
  	       stencil-size
  	       (red-size 8)
  	       (green-size 8)
  	       (blue-size 8)
  	       (buffer-size 0)
  	       (double-buffer t)
  	       (hidden nil)
  	       (resizable t))
  
negative.code: 		:title title 
  		:fullscreen fullscreen
  		:no-frame no-frame
  		:context-profile-mask context-profile-mask
  		:alpha-size alpha-size
  		:depth-size depth-size 
  		:stencil-size stencil-size 
  