enduro2d/untests/bin/library/prefab.json

{
    "components" : {
        "rect_collider" : {
            "size" : [1,2],
            "pivot" : [2,4]
        },

        "circle_collider" : {
            "radius" : 5,
            "pivot" : [4,2]
        },

        "polygon_collider" : {
            "points" : [[1,2],[2,3],[3,4]],
            "pivot" : [8,4]
        }
    }
}