span.scheme-keyword {
 font-weight: bold ;
}

span.scheme-comment {
 color: orange ;
}

span.scheme-punctuation {
 color: #bb0000 ;
}

span.scheme-identifier {
 color: #6666aa ;
}

span.scheme-number {
 color: green ;
}

span.scheme-string {
 color: green ;
}