https://bugs.documentfoundation.org/show_bug.cgi?id=160960

            Bug ID: 160960
           Summary: Conversion from PPT(X) to PDF via LibreOffice Headless
                    distorts background color (gradient)
           Product: LibreOffice
           Version: 7.5.9.2 release
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: trivial
          Priority: medium
         Component: Printing and PDF export
          Assignee: [email protected]
          Reporter: [email protected]

Description:
Conversion of PPTX files with a colored background to PDF shows a clearly
visible shift in colors as if color space have been set wrong. 
There are no settings available to prevent this.

Tested on macOS (ARM), Linux (x86 and ARM)

Steps to Reproduce:
1. Create a PowerPoint Presentation with a Color-gradient background
2. Convert with `libreoffice --headless --convert-to pdf gradient_test.pptx`
3. See the difference in colors

Actual Results:
Colours are off and segmented in bars. Looks like some colorspace conversion I
cannot control

Expected Results:
Same colors and gradients


Reproducible: Always


User Profile Reset: No

Additional Info:
See my Forum post for Example files and pictures :) 
https://ask.libreoffice.org/t/powerpoint-to-pdf-conversion-changes-colors/105199

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