{ "id": "left_right_style", "description": "Special meta-style which will show one single line, either on the left or on the right depending on the id. This is used in the small popups with left_right roads", "source": { "osmTags": { "or": [ "id=left", "id=right" ] } }, "mapRendering": [ { "location": [ "point" ] }, {} ] }