This submission [Glow around window titles is inconsistent with other design elements] has been marked a duplicate of
It looks as if someone took an airbrush in photoshop and painted around the title. When you have flairs, reflections, transparency...an airbrushed effect seems kind of random.
Also, as you see in the screenshot, the glow isn't evenly distributed across the title. It looks as bad as the cut off glow in WMP (already submitted by another user). It also doesn't seem vertically centered.
Basically, it stands out from the other window objects which are elegantly placed.
EDIT: Changed text for clarity.
Even out the glow or find a better way of highlighting the title. Maybe just extend the glow all the way across the title bar?
Just make it look more professional.