Yes, Steven ...,
Your observation is absolutely correct.
A greenish-gray paint that is most likely more of a primer than a finish.
Does do its job over the life expectation decently
but not perfect..;
on poor cars rust of the seat frames occurs.
When I redid my seats on my car I primed them with 2 K and painted (sprayed) the seat frames with a colo(u)r code pretty close to what it was originally.
Achim