Answer:
I'm not sure if this is what you wanted but hope this helps.
Registration will assure that the colors of a linocut or other relief print will align perfectly.
Answer:
Realism, sometimes called naturalism, in the arts is generally the attempt to represent subject matter truthfully, without artificiality and avoiding speculative fiction and supernatural elements.
Explanation:
I am not sure if this is what you're asking for, but I'll give it a shot!
Graffiti is considered a subject matter, because it vandalized private property, and causes employees or other people to clean up after someone else's mess.