Many paper maps have an effect around the borders where there is a gradient from the darker color of the borderline to the lighter color of the area fill. What is this effect called?
See https://www.wwu.edu/huxley/spatial/tut/cart/adobe_illustrator.htm#inset for an example.
They are called "Tint Bands". Here's some tutorials on how to re-create them in GIS software:
I've always heard it referred to as 'verge' http://dictionary.reference.com/browse/verge, I sit next to an old-school cartographer who has made maps using antiquated techniques (manual drafting of maps) and that's the word he uses.
