I have a 2 month old female Hyo Trans Zero beardie and she recently started her first shed while in my care. I looked at her back today and noticed a faint yellow spot on her upper back and I'm not sure if this should be cause for concern. Maybe its just discolor from the area about to shed but idk I'm being a overly worried pet parent here lol.
Your dragon is definitely going to shed! The yellowish or off colored scales are most likely
going to just be some fluids under the skin or possibly pigmentation changes during the shed.
They do tend to change or develop color changes with each shed when they are young.