from preamble:

"Change Set:		linesInHierarchy
Date:			28 December 2002
Author:			Steven Swerling

Add a preference called showLinesInHierarchyViews. When true, feint
lines are drawn in hierarchy views to make it more clear how the
elements in the view are related. 

Added this version: Added drawing optimizations to the last version of
this changeset, and a color fix. Also, incorporates Ned Konz' fix for
list items that have icons (for the StarBrowser)"!
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