Support gradient weight brush for Gpencil weight paint mode

Having gradient weight brush for Gpencil weight paint mode will ease deformations gradually and strething strokes with vertex colors with a smouth way espacilly if we have with options like :

1- option to spread weight by gradient along every stroke with rang setting (min - max) and the min weight get assigned to selected endpoint(can be the start or the end).

2- option to apply same effet to all strokes individually from a specified endpoint or globally by clik and drag

3- fall off is also needed .. maybe other brushes like and blur are not needed unless the fill drawing can has points inside it . but average and smear has effect on stroke and fill points