As the sun breaks out on a mid-March morning, just after a soft rain, the field begins to brighten and suddenly so does the third-level booth.



Renel Brooks-Moon is here. Of course she is. The only public-address announcer this stadium has ever known was here when it was Pacific Bell Park and when it became SBC Park and when it became AT&T Park, the home of three World Series champions.



And she’s here in the booth now, a few weeks before the regular season, if only because her spring training consists of saying the latest stadium name over and over again.



Oracle Park. Oracle Park. Oracle Park.



“I don’t know if I’m in midseason form with that, but I will have Post-its all around here to be mindful and conscious of it,’’ Renel said with a laugh. “Because that’s going to be a hard habit to break, my God.”



By any name, this will be the park’s 20th season when the home opener arrives...