Is it by design that if colour alpha channel is set to 0, the pen, brush and eraser don't do anything until the value is at least set to 1?
Rectangle is gets created though with Alpha = 0
Example: Alpha = 0, Eraser click --> Nothing (not even in the undo list)
Oh, second thing: is there an option to expand a selection? Use magic wand, to select object, then set selction plus 1 to have the selection bigger by one pixel (in each direction)? Because the tolerance setting i not always working as I wish it would...