MissionPlanner.GridUIv2.AddDrawPolygon C# (CSharp) Method

        void AddDrawPolygon()
        {
            List<PointLatLng> list2 = new List<PointLatLng>();

            list.ForEach(x => { list2.Add(x); });

            var poly = new GMapPolygon(list2, "poly");
            poly.Stroke.Brush = Brushes.Red;
            poly.Stroke.Color = Color.Red;
            poly.Fill = Brushes.Transparent;

            layerpolygons.Polygons.Add(poly);
        

            foreach (var item in list)
            {
                layerpolygons.Markers.Add(new GMarkerGoogle(item,GMarkerGoogleType.red));
            }
        }