scheme: highlight symbols differently

scheme.jsf

@@ -7,6 +7,7 @@
 =Bad		bold red
 
 =Keyword	bold
+=Symbol		red
 
 :idle Idle
 	*		idle
@@ -29,12 +30,12 @@
 	*		string
 	"\""		idle
 
-:symbol Constant
+:symbol Symbol
 	*		idle		noeat
 	"("		special_symbol
 	"a-zA-Z0-9_-"	symbol
 
-:special_symbol Constant
+:special_symbol Symbol
 	*		idle		noeat
 	")"		symbol