same image has different colors in header and body (whiter in header), possible issue with images in header?

[LSantos06]

Hi! I'm having an issue when adding an base64 encoded png image in the header section. The image becomes whiter when it's displayed in the header if compared to the same image in the body (children) section. I can give more details if necessary and any help is appreciated, thank you very much!

Example code:

sections: [
            {
                headers: {
                    default: new Header({
                        children: [
                            new Paragraph({
                                children: [
                                    new ImageRun({
                                        data: headerImage, // whiter headerImage is displayed in generated docx
                                        transformation: {
                                            width: 800,
                                            height: 113,
                                        },
                                        floating: {
                                            horizontalPosition: {
                                                relative: HorizontalPositionRelativeFrom.LEFT_MARGIN,
                                                align: AlignmentType.LEFT,
                                            },
                                            verticalPosition: {
                                                relative: VerticalPositionRelativeFrom.TOP_MARGIN,
                                                align: 'top',
                                            },
                                        },
                                    }),
                                ],
                            }),
                        ],
                    }),
                },
                children: [
                    new Paragraph({
                        alignment: AlignmentType.CENTER,
                        children: [
                            new ImageRun({
                                data: headerImage, // normal headerImage is displayed in generated docx
                                transformation: {
                                    width: 500,
                                    height: 150,
                                },
                            }),
                        ],
                    }),
                ],
            },
...            

[dolanmiu]

It's whiter probably because of Microsoft Word

docx does not do any processing on the images

[dolanmiu]

If you print the document, you will find its no longer whiter

[LSantos06]

I didn't knew Microsoft Word did that to the header, thank you for the help!