in windows LAF,
help button in property sheet has no rollover
effect. and once you press this button, the focus
border is drawn and the button looks very ugly.
see the attached screenshot for details.
Created attachment 11951 [details]
Fixed in property panel rewrite branch. The help button is no longer
focusable. Since F1 is available as a shortcut for help, this does
not present a conflict with accessibility guidelines.
Property panel rewrite branch merged.