@aral as a non-coding person with multiple learning issues (esp., dyscalculia and dyslexia) I always struggled with markdown editors that tossed up a second window purely for rendering. It simply makes my brain go bat shit crazy. It wasn't until I discovered Typora (and later markText) with live rendering in edit mode that I fell in love with markdown. I'm not sure I am your target audience, but it would be super cool if the user could edit from that preview window instead of the unrendered one