--- a/608toVTT/608toVTT.html	Tue Sep 25 22:27:55 2012 +1000
+++ b/608toVTT/608toVTT.html	Wed Sep 26 07:59:40 2012 +1000
@@ -714,29 +714,44 @@
 ::cue(c.bg_black) {
   background-color: black;
 }
-::cue(c.transparent) {
+::cue(c.bg_white.semi-transparent) {
+  background-color: rgba(255, 255, 255, 0.5);
+}
+::cue(c.bg_green.semi-transparent) {
+  background-color: rgba(0, 128, 0, 0.5);
+}
+::cue(c.bg_blue.semi-transparent) {
+  background-color: rgba(0, 0, 255, 0.5);
+}
+::cue(c.bg_cyan.semi-transparent) {
+  background-color: rgba(0, 255, 255, 0.5);
+}
+::cue(c.bg_red.semi-transparent) {
+  background-color: rgba(255, 0, 0, 0.5);
+}
+::cue(c.bg_yellow.semi-transparent) {
+  background-color: rgba(255, 255, 0, 0.5);
+}
+::cue(c.bg_magenta.semi-transparent) {
+  background-color: rgba(255, 0, 255, 0.5);
+}
+::cue(c.bg_black.semi-transparent) {
+  background-color: rgba(0, 0, 0, 0.5);
+}
+::cue(c.transparent.transparent) {
   background-color: transparent;
 }
 /* need to set this before changing color, otherwise the color is lost */
 ::cue(c.semi-transparent) {
-  background-color: rbga(0, 0, 0, 0.5);
+  background-color: rgba(0, 0, 0, 0.5);
 }
 /* need to set this before changing color, otherwise the color is lost */
 ::cue(c.opaque) {
-  background-color: rbga(0, 0, 0, 1);
+  background-color: rgba(0, 0, 0, 1);
 }
 ::cue(c.blink) {
   text-decoration: blink;
 }
-::cue(c.underline) {
-  text-decoration: underline;
-}
-::cue(c.italics) {
-  font-style: italic;
-}
-::cue(c.bold) {
-  font-weight: bold;
-}
       </pre>
 
       <p>
@@ -780,5 +795,13 @@
         <li><a href="http://www.cpcweb.com/hdtv/708.htm">708 information</a></li>
       </ul>
     </section>
+    
+    <section class='appendix'>
+      <h2>Contributors</h2>
+      <p>Thanks go to:</p>
+      <ul>
+        <li>Simon Pieters, Opera</li>
+        <li>David Singer, Apple</li>
+      </ul>
   </body>
 </html>