Hi! I use Artstudio Pro on my ipad, and I think it's great! There's just one feature that I'm really missing, and that is being able to quickly draw various filled shapes. Since Artstudio Pro already has lasso fill, and an autoshape feature while painting, it would be amazing to implement autoshape in lasso fill as well, that would make drawing filled shapes much easier! Or at least a polygonal lasso fill, that would also make things a little easier