anchor.diff:  
   I want to replace with simple OpenGL and later DirectX."))
   
  -      (lambda (i)
  +      (lambda (i w h)
   	(move-to (/ w 8) (/ w 16))
   	(style-qtext (("font_desc" "Century Schoolbook L Roman bold 40"))
   		     "Architecture")
  
positive.code: 	          (set-line-width 80)
  	          (stroke))))"))
  
        (lambda (i)
  	(move-to (/ w 8) (/ w 16))
  	(style-qtext (("font_desc" "Century Schoolbook L Roman bold 30"))
  		     "Ok, let's make it dynamic...")
  
negative.code: 	(style-qtext (("font_desc" "Century Schoolbook L Roman 30"))  " ")
  	(style-qtext (("font_desc" "Century Schoolbook L Roman bold 30"))  "You now know lisp!"))
        
        (lambda (i w h)
  	(move-to (/ w 8) (/ w 16))
  	(style-qtext (("font_desc" "Century Schoolbook L Roman bold 30"))  
  		     "\"When making something, always start with a problem.\"")
  