Well, it's brown again today. It was like that when I got up, and there was one cricket in it's enclosure that it didn't eat so I thought that might be stressing it out. I removed the offending cricket, but when I checked on it over lunch it was still brown. My new guess is that it feels unprotected in the cage it's in now, and will stay brown till it gets dark in the room it's in. That seemed to be what happened yesterday, after the lights went out it went back to it's normal color. We'll see! I'm gonna make it's tank up today, so hopefully it will stop being stressed once it feels safe and sound in the vivarium.