- clean up look of tool tips
- adjust tool tip text
- find a better way to add tool tip
- make steps clearer (background on text or move arcs away from text?)
- add in js event on click of node to return node id/name
- it's going to update the graphs on the right hand side to show data about that node / type of session
- test with real/larger data
- insert into Shiny app
- test passing node id/name to shiny