Well i bought my electric and that didnt do it, but this new fender is. it is a rosewood fretboard with a black dye on the fretboard by the looks of it because you can see where ive been playing mostly because the fretboard is lighter as the dye seems to be rubbing off, so could be them cutting corners or something, but i dont know, as i dont know that much about guitars.
its this one, but my one has (or had) a black fretboard where this one seems not to have,but mine is turning this colour as im playing it more now...

http://www.piens.be/product/fender/dg-60-ce-black/en/067487

:-)