Thanks for using Aspose APIs.
We think the SVG is right. Please check the attached images in 1592.zip.
Please open TitleFontColorInExcel2003.png and TitleFontColorInExcel2007.png, you will find title color is Gray in MS Excel 2003 and Black in Excel 2016. While color in SVG is Gray, we think, they are right. Since, your source file (AreaChart.XLS) has XLS format, we will generate the image like MS Excel 2003. If the source file has XLSX format, we will do it as MS Excel 2007 or later.
In same line of context, is there a way to convert EMF to SVG?. Assuming chart is exported to EMF first.
Please see the following code for a reference.
opts.SaveFormat = SaveFormat.Auto
opts.ImageFormat = ImageFormat.Emf
chart.ToImage(Left(aoWorkbook.FullName, Len(aoWorkbook.FullName) - 3) & "emf", opts)
opts.SaveFormat = SaveFormat.SVG
chart.ToImage(Left(aoWorkbook.FullName, Len(aoWorkbook.FullName) - 3) & "svg", opts)
1592.zip (177.8 KB)