Better drawing tools

It'd be sweet if I could draw Circles, Triangles, etc instead of just Squares and freehand. it'd also be awesome if you coudl erase parts of shapes - like when a wall is blown up, or if you mess up drawing something and don't want to redo the entire shape.

circles you can do~ hold alt

At the very least, I'd like to see a diagonal grid-snapped line (for triangles) and an eraser tool added.

Eraser is mandatory. Frankly I'm shocked it can't do it. But I hope the future is bright for an eraser! ;)

Eraser is mandatory You can always select and delete lines, but if you're hoping for an eraser like you'd find in Photoshop, GIMP, or MS Paint, that is not possible to do given the style of drawing tools that Roll20 implements. Roll20 is vector based (like Adobe Illustrator and Inkscape), while the standard 'eraser' tool belongs to raster-based tools. Here is a discussion from a while ago about the subject, and some comments from Riley about the difference between the two.

I've noticed that when I draw new shapes they are sent to back by default. Shouldn't it be the opposite?