...
MapStartMarker = MapTrack.AddMarker2(curLL.Latitude, curLL.Longitude, "Start " & DateTime.Date(Track.StartTime), File.GetUri(File.DirAssets, "red-dot.png"))
MarkerMap.Put(MapStartMarker, "Start " & DateTime.Date(Track.StartTime))
MapStopMarker = MapTrack.AddMarker2(curLL.Latitude, curLL.Longitude, "Stop " & DateTime.Date(Track.StopTime), File.GetUri(File.DirAssets, "green-dot.png"))
MarkerMap.Put(MapStopMarker, "Stop " & DateTime.Date(Track.StartTime))
...