I am sure you could but I would worry about distortion. I used to dye my canopies on planes to get a shaded look with the thin clear plane canopies. But even though I think it would be possible would would have a low lustre color. I would go with automotive paints and use the correct plastic prep. A lot of the guys who do this professionally have some great help pages on the proper steps to go through to get your paint to properly adhere and not peel on flexible canopies..
GL-Hope this helps