-/* properties */
-td.Xa {color: #0A0} /* ascii */
-td.Xl {color: #070} /* latin1 */
-td.Co {color: #800} /* private */
-td.Xz {color: #D00} /* proposed */
+/* alternate categories */
+td.Ascii {background: #EFD} /* ascii */
+td.Di {background: #FFD} /* rfc-1345 digraph */
+td.DiProp {background: #FED} /* proposed digraph */
+td.DiNone {background: #FDD} /* other unicode */
+td.Reserved {background: #BBB} /* impossible */