Will these work alright for panel lining? Because in the tutorials section I have seen recommendations for the Rose-art paint markers and some other paint markers. But I have heard not to use sharpies because they can change the color of some plastics, however the "metalic" sharpies work since they are paint. So here is my problem, I found these "water based paint poster markers" on amazon, and according to the description they are a water based paint. But they do not state what kind of paint the markers are and there is practically no information on if these paint markers are safe for plastic or even if it adheres to plastic. I would just buy some Deco Color paint pens, but they are not nearly as affordable as the sharpie water based paint pens. So has anyone tried these pens?