Fix bug in getting colorizations by name.

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@967 ed5b42cb-e716-0410-a449-f6a68f950b19

src/as/com/threerings/media/image/ClassRecord.as

@@ -83,7 +83,7 @@ public class ClassRecord
         }
 
         // Look for name matches among all colors
-        for each (var color :ColorRecord in colors) {
+        for each (var color :ColorRecord in colors.values()) {
                 if (StringUtil.compareIgnoreCase(color.name, name) == 0) {
                 return color.colorId;
             }