[Libreoffice-bugs] [Bug 127989] New: FILEOPEN PPTX full transparent hatch background is not set as 'no background'

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=127989

            Bug ID: 127989
           Summary: FILEOPEN PPTX full transparent hatch background is not
                    set as 'no background'
           Product: LibreOffice
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: rb.henschel at t-online.de

Created attachment 154782
  --> https://bugs.documentfoundation.org/attachment.cgi?id=154782&action=edit
HatchNoBackground.odp has a triangle with hatched fill and no background

Open attached document. It has a triangle with hatch filling, where the
background of the hatch is set to 'no background'. That is
draw:fill-hatch-solid="false" in ODF.

Save the document to pptx format. The saved file has correctly <a:alpha val="0"
/> in the <a:bgClr> element. So when opening the file in PowerPoint, then the
background of the hatch is transparent.

Now open the pptx file in LibreOffice. Notice the hatch background is red. ODF
only allows "false" or "true" and not the continues values of the "alpha"
element. But in case the alpha value is 0, which means full transparent,
draw:fill-hatch-solid="false" should be used.

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