This is great. I've made a few diagrams with it today, and they've been easy to do and came out just right. I do wish I could toggle the background and view t

This is great. I've made a few diagrams with it today, and they've been easy to do and came out just right. I do wish I could toggle the background and view the diagram on blank white; having the grid visible makes some things look more obvious than without, and that would be useful to know ahead of time.