Apply roundness on context (right click) menu

[zingrx]

It'd be awesome to add round corners customization to the context menu system-wide. The dash-to-dock extension enables this beautiful roundness on the dock icons when the context menu is triggered. I hope this can be applied on the general context menu as well.

This is how the dash-to-dock rounded corners look like

This is system-wide context menu that needs to be changed/customized