The shape tool is nice but needs some tweeking/bug fixes

• shapes should a "first class citizen". Once drawn (or inserted) it should be able to resize, change colour and border thickness. Currently a drawn shape can be scaled and moved but never changed in any other way.
• sometimes I just want a box but ends up drawing something that isn't 90 degrees in all four corners. I have to undo and redraw and it just kills momentum
• when I erase hand written text inside a shape and then erase it, I also always erase the background fill.
• connected arrows. I'd like to draw an arrow that connects to a shape (or to two shapes). When the shape is moved so is the arrow.