The colours on this photo are retro because its an old photo, no instagram photo filter trickery here, the world was this colour back then? The original is here.

The full credit from the NASA Image Library is: In the Manned Spacecraft Operations Building, Apollo 16 lunar module pilot Charles M. Duke [left] and commander John Young checked out operation of Lunar Roving Vehicle 2 [LRV-2] which will carry them on Traverses of the Moon’s surface. As they simulated an EVA on the Moon they activated all LRV systems to assure operation within design specifications. Apollo 16 backup commander Fred Haise and Backup lunar module pilot Edgar Mitchell also simulated a mission on the lunar surface during the day. Apollo 16 is scheduled for launch from the Kennedy Space Center on March 17, 1972.