Heard of a trick about the white that I am going to try on my plane for making stars w/outlines.

First paint the decal paper with flat spray paint like Krylon or the like. Flat white will absorb the printer ink better than gloss white, I guess it's the enamel in gloss paint?

Anyway, when it is dry, then run it through the printer and print your decal on it. Some decal paper comes pre-white color, but haven't found any yet.

Patriot

P.S. I think you can get decal paper at Office Depot.