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Colors of Map Chart Series Change when PPTX Is Loaded and Saved

We use Aspose.Slides 22.2.0 and have the following problem:

Presentation presentation = new Presentation("./mapExample.pptx");
presentation.Save("./out.pptx", Aspose.Slides.Export.SaveFormat.Pptx);

This changes the colors of the series in the map chart (the gradient of the series coloring).

I also could not find the properties needed to change this color by code (maybe this would solve the problem).

The example file is uploaded as an attachment.

Best regards

mapExample.zip (969.5 KB)

@jstalv,
Thank you for reporting the issue.

I’ve reproduced the problem with the colors of the chart series and added a ticket with ID SLIDESNET-43156 to our issue tracking system. We apologize for any inconvenience. Our development team will investigate this case. You will be notified when the issue is resolved.

You could try changing colors for data points as shown below

var dataPoints = chart.ChartData.Series[0].DataPoints;
dataPoints[0].Format.Fill.FillType = FillType.Solid;
dataPoints[0].Format.Fill.SolidFillColor.Color = Color.Red;

but I have not found a way to match the colors of data points with the legend colors. Therefore, I added a ticket with ID SLIDESNET-43157 to our issue tracking system. Our developers will consider implementing such a feature. We will inform you of any progress.

The issues you have found earlier (filed as SLIDESNET-43156) have been fixed in Aspose.Slides for .NET 22.6 (ZIP, MSI).
You can check all fixes on the Release Notes page.
You can also find the latest version of our library on the Product Download page.