Thanks for your kind words. About the trackpad I didn't manage to implement the pitch to zoom which is desperately missing.

1. That's a good point, I didn't implement this shortcut. In my head, I assumed it wouldn't be useful because the editor only let you do vertical lines, horizontal lines and circle quarter. So making a straight line is pretty easy. If it was pure freeform like on Illustrator, it would be vital. 2. Maybe it's related to the editor only letting you do vertical/horizontal/circle quarter, right?