v1.6.1 [Patch Fix for HighDPI Windows machines]

This is a patch fix for high resolution windows machines where the canvas is too large.

There is also a known issue where the drawing is sluggish on machines with slower graphics cards: mac and windows. We are working on this now.

Please expect a few more patch releases to fix issues. The last release was a big change and we want to make sure we address all the bugs!