You are partially correct.

The bottom of the JSF is FS 36375 for all three versions of the JSF. For the Navy, the entire topside is FS 36320 and FS 36375 for the bottom. For the Marines, the top has a camo of FS 36118 with FS 36320 on the inside and outside of the verticals, huggs the hingelines of the wings L.E. and T.E. flaps and wraps around the verticals and stops where the wing root meets the chine and around the canopy sill and radome. The AirForce has FS 36118 on the entire topside except around the canopy and outside of the verticals which is FS 36270 with FS 36375 on the bottom.

Hope this helps.