https://bugs.kde.org/show_bug.cgi?id=510075
Bug ID: 510075
Summary: An accent colour that is too similar to that of the
current colour scheme causes some elements to visually
merge, until they are indistinguishable from
one-another
Classification: Frameworks and Libraries
Product: frameworks-kcolorscheme
Version First 6.18.0
Reported In:
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: nicolas.fe...@gmx.de
Reporter: 4wy78...@rokejulianlockhart.addy.io
Target Milestone: ---
Created attachment 185375
--> https://bugs.kde.org/attachment.cgi?id=185375&action=edit
A Screenshot Of The Colour, Suggested In The Colouration KCM
# SUMMARY
When the user chooses a custom accent colour that matches the base colour
scheme “too well”, so-to-speak (as a layman), the consequent lack of contrast
may cause at least `QProgressBar`s’ progress indicators to become invisible.
# STEPS TO REPRODUCE
1. Invoke `kcmshell6 --highlight kcm_colors`.
2. Install `plasma-discover kns://wallpaperplugin.knsrc/2139746`. [^1] [^2]
3. Apply it as the wallpaper (without any media).
4. Apply `lookandfeeltool --apply org.kde.breezedark.desktop`.
5. Apply `#686b6f` as the custom accent colour (when suggested).
Thereafter, download an update via Discover, or transfer a file via Dolphin.
# OBSERVED RESULT
`QProgressBar`s’ progress indicators to become invisible
# EXPECTED RESULT
Their outlines should be defined, and/or their opacity should differ.
# SOFTWARE/OS VERSIONS
> ~~~
> Operating System: Fedora Linux 42
> KDE Plasma Version: 6.4.5
> KDE Frameworks Version: 6.18.0
> Qt Version: 6.9.2
> Kernel Version: 6.16.8-200.fc42.x86_64 (64-bit)
> Graphics Platform: Wayland
> ~~~
# ADDITIONAL INFORMATION
This might be better filed against the Breeze QStyle or QQuickStyle.
---
Citations:
[^1]:
https://github.com/luisbocanegra/plasma-smart-video-wallpaper-reborn/issues/148#issuecomment-3189502992:~:text=following%20the%20DE's%20colour%20scheme
[^2]:
https://bugs.kde.org/show_bug.cgi?id=509232#c0:~:text=%3E-,plasma%2Ddiscover%20kns://wallpaperplugin.knsrc/2139746,-%3E%20~~~
Relevant software:
> ~~~
> Name : kf6-kcolorscheme
> Version : 6.18.0
> Release : 1.fc42
> Architecture : x86_64
> Install Date : Mon 22 Sep 2025 23:56:50 BST
> Size : 241911
> Signature : RSA/SHA256, Sat 20 Sep 2025 09:56:33 BST, Key ID
> c8ac4916105ef944
> Source RPM : kf6-kcolorscheme-6.18.0-1.fc42.src.rpm
> Build Date : Fri 19 Sep 2025 14:21:40 BST
> Build Host : buildhw-x86-03.rdu3.fedoraproject.org
> Packager : Fedora Project
> Vendor : Fedora Project
> URL : https://invent.kde.org/frameworks/kcolorscheme
> Bug URL : https://bugz.fedoraproject.org/kf6-kcolorscheme
> ~~~
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