if you have a scanner then scan and print it on your clear decal paper. white is never printed when making decals it is usually the white of the background of the paper stock you are using or the white background of the area of the plane that you are putting stickers over. question are you sure the decals are printed on white decal paper or is the decal paper clear with a white backing that is removed before application?

just looked close at pictures it is on white decals. scan or take good quality digital photo and reprint