Description: (This issue may be design-related rather than a bug, but affects usability and visual consistency.) When editing a chart in LibreOffice Writer under a dark theme UI, text elements such as chart titles, axis labels, and legend names appear correctly on screen (white on dark background). However, when the document is exported as a PDF, these texts become invisible because the color remains white against a white background. It seems that “Automatic” text color adapts to the UI theme in the editing view, but this adaptation is not applied during PDF export — the color is exported as-is (white). Steps to Reproduce: 1. Open LibreOffice Writer (UI theme: Dark Mode enabled). 2. Insert → Chart. 3. Add a chart title and axis labels (keep text color set to “Automatic”). 4. Export the document to PDF. 5. Open the exported PDF and check the chart. Actual Results: The text in the chart (titles, labels, legend) is invisible in the exported PDF. Expected Results: The automatic text color should adapt to the document background, or be correctly rendered in the PDF output. Reproducible: Always User Profile Reset: No Additional Info: Workaround: Manually setting the text color (e.g., black) in the chart resolves the issue. Environment: - LibreOffice version: 7.5.3.2 (x86_64) - OS: Windows 11 Pro (Dark Mode enabled) - Component: Writer (Chart object) Suggested Enhancement: Consider one of the following: - Make “Automatic” text color theme-aware during PDF export. - Or, decouple UI theme color from chart element colors to maintain WYSIWYG consistency.
I can confirm with Version: 26.2.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 8ea8e254a3151f5390f3a10ff156fcaf8e7c5d5c CPU threads: 4; OS: Linux 6.8; UI render: default; VCL: gtk3 Locale: cs-CZ (cs_CZ.UTF-8); UI: en-US Calc: threaded
I can confirm this on cahyos (arch linux) Version: 25.8.1.1 (X86_64) / LibreOffice Community Build ID: b8b78ba23aae86d510cf2b39c7a2a9bdb3d77d6a CPU threads: 4; OS: Linux 6.17; UI render: default; VCL: kf6 (cairo+wayland) Locale: es-ES (es_ES.UTF-8); UI: es-ES 25.8.1-3.1 Calc: threaded
I did not test original steps with newly created chart, but rather exporting the existing chart, which seems went bad in 24.8: commit dee3cff90d5d5948e1f8dcba084f192af2e5eb07 [log] author Caolán McNamara <caolan.mcnamara@collabora.com> Sat Jan 27 22:00:15 2024 +0000 Set chart outliner background to the page bg to resolve 'auto' color when writer does this direct primitive rendering of the chart
reverting the identified commit doesn't help
https://gerrit.libreoffice.org/c/core/+/197225 + https://gerrit.libreoffice.org/c/core/+/197222 looks promising.
Created attachment 205100 [details] bug demonstration in dark mode, the text on chart is black and barely invisible.
Caolán McNamara committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/36f16718b0e1d668c19e8ff10a14e43fba64dd77 Resolves: tdf#168710 don't use dark/light bg color when printing chart It will be available in 26.8.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
backports to 26-2 and 25-8 in gerrit
Caolán McNamara committed a patch related to this issue. It has been pushed to "libreoffice-25-8": https://git.libreoffice.org/core/commit/c78198dac2abb5bbabd2c98961503cdb10e8d992 Resolves: tdf#168710 don't use dark/light bg color when printing chart It will be available in 25.8.6. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Caolán McNamara committed a patch related to this issue. It has been pushed to "libreoffice-26-2": https://git.libreoffice.org/core/commit/1797ea2d05b5ed462305737af4a55cd1d94fe4ad Resolves: tdf#168710 don't use dark/light bg color when printing chart It will be available in 26.2.2. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.