@dharman, thank you, glad you like the diagrams.
Regarding the graphical notation of UML, it’s defined by OMG Object Management Group, so I’m afraid it would defy its purpose to try to make it look more like the Grasshopper components.
If you look at page 64+fwd in the following ~800 page specification (UML 2.5) you’ll find that the graphical notation is strictly defined( UML 2.5 )
But never mind this massive 800 page document. Class diagrams for practical use in professional software doesn’t take much more than the graphical notation in the last diagram above and with that you can do like 90% of what you normally do with UML diagrams, even producing directly executable models.
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// Rolf
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