It's a little hard to see in the picture, but her arms look rather thin and her eye a bit sunken in. Maybe not, but some more pictures and cage set up info would greatly help. Sorry, cant help any more without more info.
Also, what you are calling "veins" I think are her ribs (alot of chams suck in or show ribs when stressed out or sick). Her coloring does appear to be stress colors.
Im sorry, I just realized theres a second thread going on about Molly (and how she's sick), which leads me to believe that she is in fact showing stress colors. What is her current update?
The vein looking things are most visible in the blue areas and her belly. She is very sick and has been sick for months, if you look up "Molly" in search you will find many threads on her that will explain everything. Her colors have not changed at all which I guess is good. Those are her normal everyday colors. Yes she is thin, I have to force feed her and can only get the minimum into her (stubborn girl) She weighs 76 grams and actually has a bit of a pot belly. Anyway, can you see what I am talking about?