When maximizing the window the view port offsets to the right.
Requirements:

1. Resize should resize the view port also and be centered

Here is What it looks like so far

There is a lot of duplication between the Path connection and the Standard connection in the xaml
Requirements:

1. Move the connectors to a new ConnectorsTemplate.xaml resource dictionary
2. Create a Template for the base connection class (AConnection.cs in base folder)
3. Create Template both the Path connection and Standard connection xaml data templates
4. Add properties to adjust color and thickness of the connection

A root node allows you to connect to multiple children, this is incorrect.

A Root(any node for that matter) can only connect to a single child

Requirements:
Only allow one parent -> child connection between any nodes

The child paths of root nodes can connect to each other.
Requirements:

1. Don't allow this to happen

When a connector is dragged out into empty space and let's go of the mouse button
the connector is removed.
Requirements:

1. When this happens, show a context menu allowing the user to create a new node
2. If the user does not select an option remove the connector