extra.css

.fl      {color: blue;}
.fu      {color: #00ADEF;}  /* function */
.ch,.st  {color: #F47920;}  /* string */
.kw      {color: #7A52C7;}  /* keyword */
.co      {color: #8DC63F;}  /* comment */

.message { color: gray;   font-weight: bolder;}
.error   { color: red;  font-weight: bolder;}
.warning { color: purple; font-weight: bolder;}