“Zorro was here!” a friend quipped upon seeing the images in “No future ism,” the Jay Heikes exhibition that inaugurated Federica Schiavo Gallery’s new Milan venue. Who could disagree? The thick paintings-cum-sculptures by this Minneapolis-based artist were studded with a series of zigzags, sometimes delineated in copper wire, sometimes drawn with iron filings and glue, sometimes simply carved into the depth of the material. The works as a whole (all from 2016 and titled Zs except one, Beyond Zebra) seemed to convey that the masked avenger had relentlessly written his signature on every available