-! (c)2009 Joe Groff bsd license
-USING: help.markup help.syntax kernel math ui.gadgets.worlds ;
+! Copyright (C) 2009 Joe Groff.
+! See http://factorcode.org/license.txt for BSD license.
+USING: help.markup help.syntax math ui.gadgets.worlds ;
IN: game.loop
HELP: fps