-.l6 {background: #DFD} /* complete, perfect */
-.l9 {background: #EEE} /* unknown, omitted */
-.ex {background: #EEE} /* experimental, disfavoured */
+.l5 {background: #DFD} /* complete, perfect */
+.l0 {background: #EEE} /* unknown, omitted */
+.ex { color: #888} /* experimental, disfavoured */