MouseEnter event does not fire while entering a node. 

This script shows the demonstrates the problem.

view := ROMondrianViewBuilder new.

view shape rectangle size: 20.

view interaction on: ROMouseEnter do: [ :event | 

view shape line color: Color blue. 

view edgesFrom: [ :i | i \\ 2 ].

].

view nodes: (1 to: 20).

view shape line.

view treeLayout.

view open

tx,

Usman Bhatti