Most paper isn't #fff, and most black inks don't appear as #000. Also, I think that tactic opens the debate to aspects of technology, manufacturing, and cost an

Most paper isn't #fff, and most black inks don't appear as #000. Also, I think that tactic opens the debate to aspects of technology, manufacturing, and cost analysis. I agree that painting isn't the most optimal tool for pushing this point, but I don't think the print argument is a whole lot better when comparing to css styling technique.