Notes on the class diagrams^*

"The elements in the class diagrams ... have the following meaning:

• A yellow box indicates a class. A box can have a little marker in the lower right corner to indicate that the class contains base classes that are hidden. If the box is filled with a dashed pattern the inheritance relation is virtual.
  
  
• A white box indicates that the documentation of the class is currently shown.
  
  
• A grey box indicates an undocumented class.
  
  
• A solid dark blue arrows indicates public inheritance.
  
  
• A dashed dark green arrows indicates protected inheritance.
  
  
• A dotted dark green arrows indicates private inheritance."

^* Extracted from pp. 14-15 of the Doxygen manual for version 1.1.2 by Dimitri Heesch ©1997-2000. Doxygen and GraphViz are used to generate this API documentation from the Xalan-C header files.