Originally Posted by JSWolf
Does Sharpie make a pen in white? Yellow might do.
You can see the Sharpie colors at www.sharpie.com
. The normal permanent Sharpies are not opaque colors, so the yellow wouldn't show up on the dark blue. They do offer some oil-based paint Sharpies that they say are permanent and opaque on virtually any surface. In the oil-based line, they do have white, yellow, silver, and gold.
They also offer many of those colors in water-based paint, so perhaps the silver I used was water-based and that's why it wasn't permanent for me.