Mine is white, and has 2 tracks on it.
Sounds like a Tuff Luff foil. Should have stainless steel at the entries of each track on the bottom.
Just checked out online, and yes, it looks like a head foil / tuff luff extrusion. I don't have anything else, like the feeder or all the other junk for it.
You should have a prefeeder a few inches underneith. Will ease feeding the sail in considerably and result in less wear and tear on the luff. Here are a couple types: Schaefer - SS & Bronze Main Sail Pre-feeder 1/4 in. -1/2 in. Bolt Rope (6mm-13mm)
(which is similar to what we have on our boat) and SIGNETMARINE Ultimate Prefeeder. Stainless steel headsail prefeeder.
(Both sites chosen at random from the results of a Google search on "headsail prefeeder.")