There is a new food court behind the garden that includes its own garlic fries stand.
The Giants are tops in Major League Baseball with 30,500 season ticket fans.
And the team will let them trade or sell their seats without any restrictions.
"We believe it's an open market and fans can go on whatever site they want," said SF Giants President Larry Baer. "I mean, Stubhub is the official provider for Major League Baseball."
The team also unveiled a second digital display that will include birthday and other messages, and showed off some of their "We Are Giant" TV commercials.
PHOTOS: San Francisco Giants Spring Training 2015
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#SFGOpeningDay on Monday 4/13 - Anthem performed by the Marshall Tucker Band. All other ceremony details are being kept secret— World Champs (@SFGiants) April 1, 2015