Minimax kernal shape option.

Hello, I love the minimax effect, but I can't change the shape of the kernal of it, I think the default one is square.
changing the shape of the kernal will allow some cool techniques.
for example rounding corners very fast and without changing the original edges size, without using the normal way of bluring and then crushing alphas and shrinking edges back.
for example making closing operation(minimum then maximum) with a spherical kernal will smooth corners.
also it will preserve the edges shape when using the normal minimum and maximum operation such as circle and curves.
Thank you for reading😊.