Here is what I could figure:
The layers are defined in the javascript :
https://gist.github.com/thejeshgn/fe9853115b2b7cbc7d50#file-cluster-json
And it is displayed using the Javascript
https://gist.github.com/thejeshgn/fe9853115b2b7cbc7d50#file-mapviewer-js
All the layers of type
thanks Thej. I figured that the layers were 'embedded' in the map tiles
themselves rather than being rendered separately browser-side. but wasnt at
all sure how to proceed from there.
the dynamic maps engine layer solution that you suggested definitely seems
worth a shot. will give it a try...