Ionic 4 PWA scrollbar issue

Hi, I am not hopeful to be replied though don’t know why I have never been answered. Still, if anyone reads, specially from the ionic team, I think scrollbar control is a must for PWA. The scrollbar looks awful and it is inside the Shadow. Please provide option on how to go about it. It is impossible to take this scrollbar to production. The overall documentation will be improved soon I hope.