Does rosacea appear brown after sun exposure? does lupus malar appear brown after sun exposure? what type of butterfly rash turns brown in sun?

Malar rash: Melasma is a very common patchy brown, tan, or blue-gray facial skin discoloration, usually seen in women in the reproductive years. It typically appears on the upper cheeks, upper lip, forehead, and chin. Lupus may cause a butterfly rash which can be exacerbated by the sun. A malar rash associated with lupus may be erythematous (red) or brown.