There seems to be tons of answers to the opposite question "how to remove device frame" which instructs user to click the "settings" button inside preview to uncheck "include device frame (if available)". But for me using 2.2.2 on a mac and 2.2.1 earlier, such a button with that option never was available. Out of the box (dmg) Android Studio Designer always only shows the viewport without any device frame.
This explanation of the Designer settings suggests that option is only available if "include device frame" option is selected, but for me that is a chicken & egg issue. I'm using the default Nexus 6P AVD which already has "enable device frame" selected. The only settings button I see (which is outside the preview pane, not inside) only shows these options.
How can I make the device frame show? Thanks