I have a newly acquired whites tree frog which i got a couple days back. He was a light green/bluish colour at the store, however, he has turned a brown colour. ive read that this could imply stress but also it could be a sign of blending in with his surroundings?

the little fellas viv is in the low 80's temp wise and always 60% humidity. the viv isnt in the brightest of places and it doesnt get much natural light. could this be a facture?

any help would be appreciated!!
thanks in advance.