TfL have announced official names and colours for the Overground lines:
We’re giving the lines on the London Overground names that celebrate London’s wonderful and varied cultural heritage. In this blog post, we tell you all about the names, the stories behind them and when the changes will come into effect.
Londoners will still call it the Goblin.
Unfortunately, the same can’t be said for the overall name for the Overground, the Ginger Line.