<% if defined?(MAPZEN_VALHALLA_KEY) %>
MAPZEN_VALHALLA_KEY: <%= MAPZEN_VALHALLA_KEY.to_json %>,
<% end %>
+<% if defined?(THUNDERFOREST_KEY) %>
+ THUNDERFOREST_KEY: <%= THUNDERFOREST_KEY.to_json %>,
+<% end %>
MARKER_GREEN: <%= image_path("marker-green.png").to_json %>,
MARKER_RED: <%= image_path("marker-red.png").to_json %>,