Add an Etterna category
Currently, despite the rhythm game Etterna being listed in IGDB, it is not a Twitch category. This should be added as a category, as it is currently causing confusion with a completely different game, Eterna, which is a puzzle game about RNA folding that has its own category.
Thank you for your patience!
Etterna has now been restored at https://www.twitch.tv/directory/game/Etterna