dashed, but because this makes them less noticeable than solid line, also added
slightly darker shade of gray
slightly less opaque than regular links
Wasn't really part of this, but also took opportunity to read up on styling svg text, and improved legibility of the node labels. This was a really useful reference
Link backs are now:
Wasn't really part of this, but also took opportunity to read up on styling svg text, and improved legibility of the node labels. This was a really useful reference