I'm fairly confidant that gravid would be a much darker base color. My chameleon does this pattern when she sees the dripper hose and is trying to puff up and look big and intimidating or is surprised by something.
When I first got my veiled, I picked her out by her temperament. She was the only baby chameleon that didn't puff up, go dark, run away or anything when the keeper put his hand in the cage. I knew right away she was going to be pretty relaxed and she still is :)
The photos in the last thread were awful haha, I didn't realize the site would change the photos to meet the size requirements and FLIP them in order to do so! So, here are some better photos of my lovely Juno!
So tiny!
She never liked the dripper hose!! This is her reaction to it...