Platform API - Enabling the Context Menu in a Platform Window

The "contextMenu" property will be false on Window's by default in Platform but you can reenable across the platform by passing this as a default window option.

{
    "platform": {
        ...
        "defaultWindowOptions": {
            ...
            "contextMenu": true
        }
    }
}

Once this is enabled, right clicking the tab bar area will allow you to access the window dev tools.

**Disclaimer**

Broken in OSX; See Debugging Platforms on Mac