http://qs321.pair.com?node_id=17450

two ideas i happened to stumble upon while
dev-nulling my stuff in my room.
(if that doesn't make sense to you, i know how you feel)

Line numbering (two options)

syntax highlighting
option in user settings that'll turn on or off syntax highlighting.
not for me, but for people *really* new to Perl.
would spoil the fun of obfuscated code though ;-)