 As a result, classic elements such as redbrick, limestone, and muted forest-green seats or fences, would not be found anywhere in Marlins Park.Any visible steel trusses would be functionally required to be that way, unlike retro-style trusses which tend to be exposed and bare for aesthetics.According to Sherlock, the structure would convey "that a ballpark doesn't necessarily have to be bricks and steel to translate a message about its location.