Reviewed by Paul Janman Photo by Paul Janman You walk from the nearby Onehunga Mall to Princes Street on a bright autumn afternoon and the gallery has gone black. Not painted black: built black. Brett Graham (Ngāti Korokī Kahukura, Tainui) has filled Gow Langsford's new Onehunga space with a whare roughly 14.5 metres long and four metres high, its three outfacing walls plaited from the leaves of tī kōuka, dense and overlapping like a wet cloak. The first thing the eye registe