“a=tF²,” a solo show by Igor Štromajer, “the Pavarotti of HTML,” opens at Berlin’s panke.gallery. Drawing on the artist’s favoured tropes and aesthetics, ranging from CGA graphics to toolbar mandalas, the show juxtaposes knowledge work’s ephemera with the austerity of the white cube. On Instagram, in advance of the opening, Štromajer has teased work-in-progress, his strategically cropped previews revealing “dirty, radical, minimal” assemblages of e-junk and toy robots (image), and an adorable pint-sized workstation.