Thank you very much for your changes. Now it looks quite good.
Just to spark more ideas, following there are links to typical class diagrams:
(The logo should represent class diagrams)
http://blog.caplin.com/wp-content/uploads/UML_Class-diagram.gifhttp://se.inf.ethz.ch/teaching/2008-S/se-0204/exercises/Class%20Diagram.jpghttp://www.nickrawlings.net/emailserver/New_Class_Diagram_Email_Server.pngMay be we could try an arrangement like this:
(where # repersent the icon)
#### Edward
#### Engineering
Structure Patterns Design