[oXygen-user] Ant syntax highlighting?

Hi, I'd very much like to tweak Oxygen's Ant syntax highlighting - specifically, I'd like to be able to highlight variables in attribute values, which are currently displayed as red text from start to finish. It seems like this ought to be relatively easy to specify (i.e. anything between "${" and "}" is styled differently), but is this possible with the framework functionality, or in any other way at all? Thanks!