Window marker

My white window marker had leaked out. I borrowed some from the guy next to me. Went on a bit light but dried darker. A bit runny. The stuff wiped right off with a dry piece of paper towel! Good stuff. Didn't get the brand. I've often had a hard time getting the marker off. Anybody know the brand ? I've got Lexan if that matters. I recently was introduced to Novous acrylic cleaners. Made the Lexan look new! Great product. Anyway, what are people having good luck with?