Rectangle border does not work well in the Qt Quick Designer

Rectangle border does not behave well in the Qt Quick Designer

The default border.width if is 1 instead of 0 and if we set a color once in the designer we have to explicit set the border.with to 0 to remove the border again.

It would be nice if the default border width would be 0 and the default color would be transparent instead of black (unless border.width is not 0).