dithered color vs American spelling

dithered color and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
dithered color	Yes	No	No	No
American spelling	Yes	No	No	No

dithered color (noun)	American spelling (noun)
a color produced by a pattern of differently colored dots that together simulate the desired color	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')