Thanks to all who responded. The consensus here is the only answer that makes any sense, but the manual kind of threw me off when describing zero on the electronic analog exposure display as simply "good exposure"...
Top of page 71. I started thinking, "what could 'good exposure' possibly be? Does this mean that the camera continues to make exposure judgements on my behalf?" Glad to have that simply clarified. Forgive me, I'm used to match needle metering.