Added level 17... both Hilltop Ghetto and Quagmire were clearly labelled, so RL has improved it in last update (used to be Quagmire but say Trash Tops)
Level 20 is a strange one. I was annoyed because the notification said Single Coin (Red) 450-500, to which I thought "is that all?!" Only to notice that the Single (Blue) has also increased from 6000-8000. There must be a bug with this notification forgetting the Blue reward increase.