This :graph: Graph will be my first test event 😉
Discussion
I really think just copying these `from`and `to`tags from the JSONcanvas spec is enough and avoids having to interop on exact formatting syntax:
```
["fromSide", "top"|"bottom"|"left"|"right"]
["toSide", "top"|"bottom"|"left"|"right"]
["fromEnd", "none"|"arrow"]
["toEnd", "none"|"arrow"]
```
As long as you work with:
- rectangularly shaped nodes
- have some sensible max and min relative sizings for them
- know on which side the connections start and end
Your app can figure out a proper rendering for it.