Apple is opening Brooklyn store No. 2 in a very convenient spot: Downtown. A vaulting makeover for the Domino Sugar refinery gets an OK, as does the hotly controversial redevelopment of the Bedford-Union Armory. A real-estate pro gives the lowdown on Brooklyn trends, while we investigate the “high-rent blight” of empty storefronts. A full-scale supermarket is coming to Dumbo. The New Yorker calls food halls an overhyped economic phenomenon. Industrial companies are leaving Williamsburg, cashing in their property to head for cheaper frontiers. A new co-working space in Park Slope has a sweet deal for local journalists: a $1 membership fee. And a small variety store in Ditmas Park shows you don’t have to be Macy’s to put on a festive holiday store-window display.