I was working on an update for the map which I put on hold until V21 is released, this is because apparently map adjusting features will be default.
The update however features support to add water and a sun flare to the map, it will also allow users to add their own custom content easily such as sky boxes, ambient sounds and precipitation.
Despite pending for V21 to see whether continuing this update is necessary, I also need to find time in order to work on it. Preferably throughout the summer.