When excel is converted to HTML, the cell gradient background color will not be displayed

I used the Aspose interface to convert static Excel to HTML, and found that the cell gradient background color could not be displayed in HTML
image.png (49.7 KB)
image.png (23.8 KB)
code:

Workbook workbook = new Workbook("D://Aspose//EPPR_47362.xlsx");
workbook.save("D://Aspose//EPPR_47362_201.html", SaveFormat.HTML);

this is the excel file:
EPPR_47362.zip (18.0 KB)

@xhaixia,
The gradient is rendered fine with latest version so can you please upgrade and share your feedback. EPPR_47362_201.zip (2.3 KB)