https://bugs.kde.org/show_bug.cgi?id=455173
Bug ID: 455173
Summary: The Plasma sliding popups effect has a white flash in
animation, with dark themes.
Product: kwin
Version: 5.24.90
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-various
Assignee: kwin-bugs-n...@kde.org
Reporter: ad.liu....@gmail.com
Target Milestone: ---
SUMMARY
With a dark global theme, the systray's sliding out animation has a quite
visible white flash. (see attachment1)
In attachment2,3,4 you can see that the popup is significantly brighter at the
start of animation than the end, causing the flash.
It's actually caused by the "Improve contrast and readability behind
semi-transparent windows" effect. When this effect is off, no more flash in the
sliding out animation.
Moreover, this effect makes all Plasma panels significantly brighter when
there's a window behind, compared to when no window behind, or when the effect
is off. (see attachment5,6)
STEPS TO REPRODUCE
1. Click on a systray icon
OBSERVED RESULT
The popup's sliding out animation has a white flash.
EXPECTED RESULT
The popup's sliding out animation has no flash.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.24.90
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.4
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