Are you referring to the black smudge left of center above the open doors and on that 45 degree angle piece?
I would try a small wire brush and see if it will pick up the paint flecks. You you have really steady hands and good eyes you might try seeing if the paint will pick off with a small needle. Being inside the little pockets the paint probably have very little adhesion it at all to the counter.
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2001 Suburban 4x4. 6.0L, 4.10 3/4 ton **** 2005 Jayco Jay Flight 27BH **** 1986 Coleman Columbia Popup