and file_info = {micro_level : (int * kind) list;macro_level : (kind * float) list;
}val red_green_properties : (kind * color) listval heat_map_properties : (kind * color) listval json_of_layer : layer -> Json_type.tval layer_of_json : Json_type.t -> layerval stat_of_layer : layer -> (kind * int) list