I never had to reroute these lines; they were running through the boom when I got the boat. Probably they came from the factory like this, as it was a 1-owner boat and he wasn't the type to modify much. It's a '95 H23.5. The colors were (from port to st'bd) wht/blue, wht/red, wht/blue. The functions were outhaul, unknown, unknown.
But at one time, I wanted to verify the colors and functions were per the factory specs. (I know... a tad OCD) I searched for many hours on this site and elsewhere. Never did find anything truly definitive for the H23.5.
Search for "boom reef outhaul topping red blue" and you'll find this discussion:
http://forums.hunter.sailboatowners.com/showthread.php?p=576074
If I understand correctly, he has:
port /blue topping
mid /red outhaul
st'bd /grn reef
Still would like to know original Hunter spec, but I guess I've learned enough about Hunter by now to feel pretty certain that not all of the boats were rigged exactly the same.