Kent,
Looking through my photos now. I've found some from the female on the same day when they both were getting fairly warm outside. I had them out so I could do some cage cleaning, but misted them pretty heavily at times to compensate some and keep some good hydration going. It's interesting to note that the female went to darker colorations rather than lighter like you suggest. I also remember the male turning to a darker brown coloration...almost to the point where you could see any patterning. It's not something I want to try and impose on them, and it's nearly 100 degrees outside right now, so it's really not wise to "test" it right now for some fresh pics either.
I have tons of photos here...will keep searching through! Question...you said you have seen some lighter colored males recently? I am assuming you are speaking of Carpets...any photos of these?
Lastly, while going through these photos I've found some pretty cool patterns on the female. I don't think I've ever seen such a wide ranged palette before, but that's just me I suppose!