'Sonos SMAPI: how to internationalize containers?

I'm trying to get our Music Service's SMAPI validated with Sonos. Automated tests passed. I'm now getting what looks like the results of manual QA tests from the Sonos support.

In the "Browse" category, a test named "Is an english translation provided for all containers?" is marked as failed with the notice "Service is in German". We are structuring our music service content by means of hierarchical mediaCollections. Since we're a Germany-based company, the containers (essentially music genres) have german titles.

We'd be happy to provide english translations if need be, but I can't seem to find how I'm supposed to add these translations in the Sonos SMAPI Documentation.

Could anybody please point me into the right direction?



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