I would be concerned that the texture was filled in  with the new paint.

I painted mine with Interlux boat paint as many have done before, however, I
found that high gloss Interlux standard finish was much like a washing
machine or dryer, and not at all similar to what I had originally. What I
had was almost flat white, and I liked it, and I wanted it back. However, it
was too late...I added two quarts of Interlux gloss reducer to the naturally
glossy gallon of boat paint and got something I could live with. It was
slightly glossy, still, but my biggest concern was the thickness of this new
paint; it virtually eliminated the texture. I sprayed an orange peel finish
and got a good texture; and that texture, gloss, and basic finish has
survived just fine for three years.

Tan sounds ok to me, but it is not good at all if you don't like it.I'd say
that if you and the painter had an agreement of the final finish and he did
not deliver it, go ahead and complain.

Go to thesamba or some similar site and check for vanagon tops and see how
they compare with yours.

Oh yeah,I almost forgot! I sell stainless steel fasteners for that top. I
got some right now on ebay. Go there and you can see my Interlux top w/ 50%
gloss reduction in the ebay sales ad I placed.Look close and you can see the
orange peel effect.