Here's the response I got from the StackOverflow question from a member of Google's Developer Relations team:
""" Internationalization in the Data API v3 is something YT started supporting recently, and it's limited now. But there is a work going on to bring this support to the all functionalities in the API really soon. """ So it isn't clear how we can progress on this until something changes in the API. I'm lowering the importance to take this into account. Please change it again if you disagree. ** Changed in: unity-scope-youtube (Ubuntu) Importance: High => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1359153 Title: YouTube labels and categories are not localized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-rest-scopes/+bug/1359153/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs