Oooooooohhhhhhhhhh nooooooooo
Sure I can help you if you really think about it all of it means just ANB
It is called banding I believe sorry if I am wrong google it if you don't thinki it is !! :)
Chiaroscuro is Italian for<em> light and shadow</em>
Painters use this technique when they need to <u>create the illusion of light</u> on objects and people
I've attached a pic for example :D