Bug 155613 - Transparent PNG as background makes automatic color white
Summary: Transparent PNG as background makes automatic color white
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
4.1.0.4 release
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: bibisectRequest, regression
Depends on:
Blocks: Slide-Background Automatic-Color
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Reported: 2023-05-31 19:34 UTC by Felix Rudolphi
Modified: 2023-10-20 09:03 UTC (History)
1 user (show)

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Description Felix Rudolphi 2023-05-31 19:34:11 UTC 
Description:
When setting the PNG (from https://sciformation.works/intern/arrows-1577983_transparent_gradient.png mostly transparent, some arrows, from Pixabay with slight modifications) as background, text color automatically switches to white (which is unreadable)

Steps to Reproduce:
1.New ODP
2. Slide > Background image
3. Select file from https://sciformation.works/intern/arrows-1577983_transparent_gradient.png

Actual Results:
White text

Expected Results:
Black text


Reproducible: Always


User Profile Reset: No

Additional Info:
Version: 7.5.3.2 (X86_64) / LibreOffice Community
Build ID: 50(Build:2)
CPU threads: 8; OS: Linux 5.19; UI render: default; VCL: gtk3
Locale: de-DE (de_DE.UTF-8); UI: de-DE
Ubuntu package version: 4:7.5.3~rc2-0ubuntu0.22.04.1~lo1
Calc: threaded
Comment 1 Stéphane Guillou (stragu) 2023-05-31 21:10:27 UTC 
Thanks Felix.
I can confirm the issue in:

Version: 7.6.0.0.alpha1+ (X86_64) / LibreOffice Community
Build ID: fc4f7db59152f606b6aa88cf32197700959d0f8b
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded

This started in in 4.1.0.0.beta1 (tested with linux-64-releases bibisect repository).
Comment 2 m_a_riosv 2023-05-31 21:20:11 UTC 
Reproducible
Version: 7.6.0.0.alpha1+ (X86_64) / LibreOffice Community
Build ID: 60e499147963e42ce783dffcf9c8d4aba8b5d475
CPU threads: 16; OS: Windows 10.0 Build 22621; UI render: Skia/Raster; VCL: win
Locale: es-ES (es_ES); UI: en-US Calc: CL threaded

Setting up the font color, text is visible, but not with font color 'Automatic'