pattern. The bright blue roof is itself patterned with arched cut-outs and raised circular patterns The building wings are arranged as a barrel vault shape on either side of the central galley, asymmetrically disposed. Interior guardrails at the atrium are solid stucco with no metal elements. Entrances are controlled by vertical grills of gold-anodized metal with rounded tops and bottoms, rather than doors. The eaves are embellished with an arched fascia with small gold balls inset in each arch, a pattern repeated in the atria. The rotunda on the central hill houses the county library and a central cafeteria. Its gold spire was meant to house a radio transmitter, as well as the boiler plant's chimney. The interiors are arranged around open atria or "malls" as Wright called them, which allow natural light into the space. Originally open to the sky, the malls were later covered with skylights designed by William Wesley Peters. Interior spaces featured glass walls to allow light to penetrate from the exterior and the atrium, and to follow through on Wright's philosophy of maximum openness of government activities. Wright's concept envisioned a gold-colored roof, which proved to be impossible to obtain in a long-lasting material. After Wright's death, Olgivanna Lloyd Wright chose a bright blue color that would weather well, gaining a softer color with age. The color choice, together with the pink stucco walls, was initially controversial, causing the building to become known as "Big Pink". The only large gold element is the spire at the rotunda. Accessory buildings The Post Office building is a one-story elliptical building near the entrance to the complex. Its facade repeats the arch motif, with circular embellishments on its canopy. The interior features an elliptical lobby. The nearby Veterans' Memorial Auditorium was designed by the Taliesin Associated Architects and was completed in 1971 in a manner compatible with the main complex. The auditorium was designed for use by the county fair with a combination of flat-floor exhibition space and tiered seating spaces, using a compromise plan devised by Wesley Peters, George Izenour, and Aaron Green. The main hall seats 1960 in an amphitheater arrangement. A separate Showcase Theater seats 300, and the exhibition hall can accommodate up to 2000 patrons. The original Hall of Justice design incorporated the Marin County Jail. As the jail outgrew its space a number of proposals were advanced for a new facility adjoining the