So, you’re an art lover, and you can claim – or brag – to have travelled the world and seen many masterpieces. “Mona Lisa” in Paris. “Guernica” in Madrid. “Starry Night” in New York. “The Night Watch” in Amsterdam. And so on. But now be honest: Do you recall their frames? You might respond, no – but so what? Who cares about the frames? It’s an answer that likely would have triggered a sharp retort from German Expressionist painter Ernst Ludwig Kirchner (1880-1938). To him, the frame was an integral part of the overall work – the German word for it is “Gesamtkunstwerk” (total work of art) – and…