BrowserWindowConstructorOptions Object extends BaseWindowConstructorOptions 
- webPreferencesWebPreferences (optional) - Settings of web page's features.
- paintWhenInitiallyHiddenboolean (optional) - Whether the renderer should be active when- showis- falseand it has just been created. In order for- document.visibilityStateto work correctly on first load with- show: falseyou should set this to- false. Setting this to- falsewill cause the- ready-to-showevent to not fire. Default is- true.