Async0x42

This would be great, I often find myself drawing lines on a separate layer to help with drawing things.

> Thanks @yotamberk > For now, I'm dynamically changing the `vis-right` height based on the `vis-left` height, and using some css to hide the scrollbar at the left side. It's...

> > After I did this, there's a gap where the scrollbar was removed. > > Were you able to get rid of the blank gap between the left panel...