Comment #1 on issue 829 by google....(a)ben.coman.com.au: Roassal Label Text
does not scale with Zoom Out
Also, try this code....
view shape label.
view nodes: (ROShape withAllSubclasses).
view shape: (ROOrthoHorizontalLineShape new add:
(ROReversedHorizontalArrow new offset: 1 )).
view edgesFrom: #superclass.
...and <Zoom in>
The point of the arrows stay attached to vertical centre of the last letter
of the label.
A big gap arises between the arrow and the label.
The label text becomes offset vertically away from the arrow attachPoint.