The state of "anesthesia" means different things to different individuals and is as much a philosophical state as a neuro-scientific one. While the definition of anesthesia itself, as the loss of "awareness," is rather vague, a pragmatic definition of anesthesia as the provision of a combination of amnesia, analgesia (pain control), and muscle relaxation to allow the performance of surgery or interventional procedures is more useful. Anesthesiologists are also responsible for physiologic homeostasis while the patient is in the anesthetized state providing for the safest and most comfortable perioperative experience possible.
It has an easy to override visual style, and is appropriately subdued.
It's a little ostentatious, but useful for important content or any other anounces that you are going to make.