BinaryKits.Zpl.Viewer and images

[sberruti]

Hi, I would like to use the viewer to create the ZPL code image that I take from text files (.txt or .prn) created with Zebra Designer.
I can't convert ^GFA graphics commands.
I attach an example file.
Where am I wrong?
My c#:
`using BinaryKits.Zpl.Viewer;

IPrinterStorage printerStorage = new PrinterStorage();
var drawer = new ZplElementDrawer(printerStorage);

var analyzer = new ZplAnalyzer(printerStorage);
try
{
// Open the text file using a stream reader.
using var sr = new StreamReader(@"C:\Designer\NFS_EtiK005c1.prn");
string zpldata = sr.ReadToEnd();
' Console.WriteLine(zpldata);
var analyzeInfo = analyzer.Analyze(zpldata);

foreach (var labelInfo in analyzeInfo.LabelInfos)
{
    var imageData = drawer.Draw(labelInfo.ZplElements);
    File.WriteAllBytes(@"C:\Designer\label.png", imageData);
}

}
catch (IOException e)
{
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
`
NFS_EtiK005.txt