https://bugs.documentfoundation.org/show_bug.cgi?id=152922

            Bug ID: 152922
           Summary: Chart element transparency gradient set from dialog
                    does not work (but it does from sidebar)
           Product: LibreOffice
           Version: 6.3.6.2 release
          Hardware: x86-64 (AMD64)
                OS: All
            Status: UNCONFIRMED
          Keywords: bibisectRequest, regression
          Severity: normal
          Priority: medium
         Component: Chart
          Assignee: libreoffice-bugs@lists.freedesktop.org
          Reporter: stephane.guil...@libreoffice.org
            Blocks: 90486, 114005

Created attachment 184522
  --> https://bugs.documentfoundation.org/attachment.cgi?id=184522&action=edit
example file with chart containing many area elements with colour fills

A transparency gradient can be applied to a chart element from the sidebar but
not from the format dialog.

Steps:
1. Open attachment (or create a chart from scratch)
2. Double-click on chart to enter edit mode
3. Select an element with a coloured area (Title, Subtitle, Legend, Chart wall,
Data series...), right-click and use the "Format <element>..." option
4. Transparency > Gradient (leave defaults)
5. Click OK

Results:
- In the dialog, the preview does not update to show a gradient (but it does if
the transparency is solid)
- After applying, the gradient does not apply to the area (but it does if the
transparency is solid)
- Opening the dialog again shows that the setting remains

However, if this transparency gradient setting is applied from the sidebar, it
works as expected.
A colour gradient applied from the dialog works too.

Tested in Writer and Calc on Linux and Windows, with a recent master build:

Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 2eefb695c0bfd00abd22e17e64ab2a1692fe2af4
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded

Also present in:

Version: 6.3.6.2
Build ID: 2196df99b074d8a661f4036fca8fa0cbfa33a497
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3; 
Locale: en-AU (en_AU.UTF-8); UI-Language: en-US
Calc: threaded

But not in:

Version: 6.2.0.0.beta1
Build ID: d1b41307be3f8c19fe6f1938cf056e7ff1eb1d18
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3; 
Locale: en-AU (en_AU.UTF-8); UI-Language: en-US
Calc: threaded


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=90486
[Bug 90486] [META] Chart bugs and enhancements
https://bugs.documentfoundation.org/show_bug.cgi?id=114005
[Bug 114005] [META] Gradient fill bugs and enhancements
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