The labels were printed on regular paper - the red is all ink and the photo doesn't show but it well but it is a gradient darker at the top and lighter at the bottom.
I like clean uncluttered labels.
My rhubarb in the back yard is a green variety - very little red color to it, so the wine comes out without any red or pink hues. I usually like my rhubarb wine dry but this one started out with too much sugar (SG 1.110) and stopped fermenting at about 1.015 leaving about 4% residual sugar. I started out with almost 24 pounds of rhubarb and made about 4.5 gallons of finished wine. It is tart. I didn't measure the acid on this but went by taste. The sugar balances the acid quite well. It is delightfully rhubarby and has a nice satiny mouthfeel. I did filter this through number 3 filter pads using my Buon Vino super jet.
Whew, did I answer all your questions?