This is a usability observation, and I think following this could greatly improve the ease of use for Fritzing.

Currently, when we zoom into the PCB view (and possibly other views too), all the mouse handles (trace benpoints, footprint outlines, etc.) zoom too. This means that zooming doesn't help with working with very tight designs, where those handles overlap. If instead the handles remained a constant size (large enough to conveniently click, small enough to not obscure too much), then zooming in would result in them being displayed farther apart, and thus easier to manipulate accurately. You can see how GIMP and Inkscape handle that, and how that makes it much easier to work both at large and small zoom levels.