This is optional - if present, it contains a comma-separated list of any of
the following values, describing an AntiFeature the application has:
- ‘Ads’ - the application contains advertising.
- ‘Tracking’ - the application tracks and reports your activity to
somewhere without your consent.
- ‘NonFreeNet’ - the application promotes a non-Free network service.
- ‘NonFreeAdd’ - the application promotes non-Free add-ons.
- ‘NonFreeDep’ - the application depends on a non-Free application (e.g.
Google Maps) - i.e. it requires it to be installed on the device, but does not