Borders in Path Tool 2.0

It would be awesome, if you can create some kind of "borders" in Path Tool 2.0. I think Path Tool 2.0 can be used not only for cliffs, walls, room walls etc, but, if you'll add one side alpha patterns, it can be used for road borders, or grass borders, or even for costline and smoke. Also it can provide better way to create shadows (like we do right now with current Path Toll, but with smooth alpha only on one side of pattern) I've added few exemples of such Path Tool patterns. Technicaly, I think that's exectly what your new Path Tool works (Bezier curve), but with alpha on one side.