Hardline airbrush in Painter 2016

Hi Community

I am new to Painter.

Coming from Sketchbook I am really loving it, however I am having trouble trying to create a hardline airbrush. The one in sketchbook is like a half circle profile, one side hard, and the other sider very soft with a nice colour gradient. It also overlays and builds up nicely. See the attached screen shots

Is there a way to create this brush in painter, if so I am moving over.

Thanks in advance.