Excited to see a distraction-free mode at last. Upon using it, I notice that there is a large swatch of space on the left hand side of the screen (like one big empty column). At first, I thought it was due to where the "Project/Structure" panels used to be. But even closing those panels and then entering distraction-free mode still leaves a large empty column on the left of the UI. Is this a bug? Seems so.