Index: index.html
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--- index.html	(revision 34012)
+++ index.html	(revision 34013)
@@ -313,7 +313,10 @@
 By default, the clearance around text is rendered as a round corner
 rectangular cutout. If the tight_clearance attribute on the text object
 is specified and the value is "yes" or "true" or "1", a more accurate
-clearance is calculated that follows the true shape of the text object.
+clearance is calculated that follows the true shape of the text object. If
+the clearance field of the text object is not 0, it determines the 
+clearance (gap) to polygon in thight_clearance mode (if the clearance happens,
+see flags, and the value not overridden from the polygon side).
 <p>
 The Y coordinates of a text object are mirrored if the ONSOLDER flag is set
 (which means the text is mirrored over the X axis). The X coordinates of a