Index: openacs-4/packages/xowiki/tcl/tree-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/tree-procs.tcl,v
diff -u -N -r1.23.2.9 -r1.23.2.10
--- openacs-4/packages/xowiki/tcl/tree-procs.tcl	1 Feb 2021 10:41:29 -0000	1.23.2.9
+++ openacs-4/packages/xowiki/tcl/tree-procs.tcl	8 Apr 2021 20:11:09 -0000	1.23.2.10
@@ -551,7 +551,6 @@
   }
 
   TreeRenderer=bootstrap3 proc render {tree} {
-    if {${:verbose}} {:log "TreeRenderer=bootstrap3 p=[:info precedence]"}
     set jsTree [string trimright [next] ", \n"]
     set id [$tree id]
     set options ""
@@ -606,15 +605,15 @@
     set jsTree [string trimright [next] ", \n"]
     set id [$tree id]
     set options ""
+    # see list of possible icons: https://github.com/jonmiles/bootstrap-treeview
     lappend options \
-        "expandIcon: 'glyphicon glyphicon-folder-close'" \
+        "expandIcon: 'glyphicon glyphicon-none'" \
         "collapseIcon: 'glyphicon glyphicon-folder-open'" \
         "enableLinks: true"
     template::add_body_script -script "\n\$('#$id').treeview({data: \[$jsTree\], [join $options ,] });"
     return "<div id='$id'></div>"
   }
 
-
 }
 ::xo::library source_dependent