Isn't that just the 'glow' burst as the Dragons Breath is more of a 'V' as if its like a dragon blowing fire out of its mouth. The burst is generally as if the 'neck' is the Dragon so the widest part of the V is the base of the guitar.
It would be a bit like '>----' where the ---- is the neck and the > is the burst where the 'glow' or orange is inside the > and the darker 'red' is outside that.
This is what I understand to be a 'Dragons Breath' style, where as if the 'bright' part is centred in the middle of the guitar with the darker part going all around the outside, that is classed as a 'Glow'
I could be wrong but I am certain I saw a PRS video that was describing why this 'shape' was the Dragon's Breath because it resembled the fire of a fire breathing dragon