both my jackson's i rescued are brown right now. my boy is getting a lil bit of green under his belly and even some blue under his chin. my girl is brown with a cool pattern all the time. it could take up to a month sometimes even more. my girl actually settled right in, my boy is still acting up. both are very active though
The reason why i said bright green is because when i bought him, he was a brown and a bright green! Black and red would be awesome hes already eating and everything. Hes getting used to it already!