matte vs matted

matte is a noun but matted is not a noun.

Word	Noun	Adjective	Verb	Adverb
matte	Yes	Yes	Yes	No
matted	No	Yes	No	No

As adjectives, matte and matted are synonyms defined as:

Other synonyms of matte include flat, mat, matt.

matte (noun)	matted (noun)
the property of having little or no contrast; lacking highlights or gloss
a mixture of sulfides that forms when sulfide metal ores are smelted

matte (adjective)	matted (adjective)
not reflecting light; not glossy	not reflecting light; not glossy
	tangled in a dense mass

matte (verb)	matted (verb)
change texture so as to become matted and felt-like