This is the name used for the link type within Tinderbox and for link captions in Map view. The first listed item is normally "*untitled". A link type should always have a name. The user can toggle the visibility of a link's label via the showLabel attribute. some actions like linkedTo() and linkedFrom() use the asterisked "*untitled" string to match 'untitled' links.
The name value can be further customised within the program at file level via the Attributes:Link Types dialog.
<link name="note" color="#666666" visible="1" style="0"/>