Connection types and icons

[kyesil]

We like the project and we want it to develop. It is really simple and useful.
Can we change the type of connection between the nodes? Can we add symbols like arrows to the ends of the connections?
Can we help to improve the project? I think you don't have time.

[jerosoler]

Happy new Year!

View this:

• Vertical ports or drawing connections from node edges #20
• Label for connector lines #18