How can I limit the allowed screen sizes (e.g. to tablet only) in a trigger.io forge project using crosswalk?

Question

There does not appear to be a configuration setting to limit allowed screens for Play Store distribution for android builds, as there is in the iOS configuration.

Normally, I would accomplish this by editing the AndroidManifest.xml if this were a native application, like so:

<manifest ... >
    <supports-screens android:smallScreens="false"
                      android:normalScreens="false"
                      android:largeScreens="true"
                      android:xlargeScreens="true"/>
    ...
</manifest>

I looked into creating a post-build hook that would edit that file and then run before forge package, but by the time the forge toolkit has returned the build, the manifest file is already in axml format.

This application is using the crosswalk build mode, but from what I can tell it reads platform-specific configuration from android as well, but adds the crosswalk framework in the process.

(Note: While it would be nice to allow all screen sizes for this application, it is not currently possible for devices smaller than a tablet to have a usable experience).

Any direction on how to do this with a trigger.io config or how to use a pre/post-build script would be greatly appreciated. Thanks!