I was about to try to introduce this topic as a new discussion, but I was happy to see it's come up before. Personally, I'd really like to see this but have it add spans with names so you could add your own colors iff you wanted them. I imagine there'd be a 50/50 split on people that would and would not like this.

I'm under the impression that Perl::Tidy does this highlighting automagically. I've never tried to use it for syntax highlighting. But even if it can't do it, it's not much of a stretch to do the syntax markup.

Anyway, take a look at the pure beauty of Evolution of a POE Server to see why I dig it. Gorgeous.