Bug 510485

Summary:	Hot corner highlights in Breeze are all black with Qt 6.10.0
Product:	[Plasma] kwin	Reporter:	Tech-Tac <im.tech.tac>
Component:	effects-various	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	nate, nicolas.fella
Priority:	NOR	Keywords:	regression
Version First Reported In:	6.4.5
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
URL:	https://bugreports.qt.io/browse/QTBUG-141102
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Tech-Tac 2025-10-11 09:24:36 UTC

SUMMARY
The Highlight Screen Edges and Hot Corners effect now only renders black highlights in Breeze as of the latest Arch packaging in October 11th 2025 as compared to two days before on Qt 6.9.2 and dependent KDE versions which worked as intended.

Can reproduce in a new user account.

STEPS TO REPRODUCE
1. Upgrade Qt and KDE packages to the latest versions as of 25-10-11 9AM UTC
2. Restart/re-login
3. Move the mouse near a configured hot corner with the Breeze Plasma style.

OBSERVED RESULT
Corner and edge highlights are black.

EXPECTED RESULT
Should be accent colored as in previous versions.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
KDE Plasma Version: plasma-desktop 6.4.5-4
KDE Frameworks Version: 6.18.0
Qt Version: 6.10.0

Comment 1 Nicolas Fella 2025-10-12 15:37:30 UTC

This is because of https://bugreports.qt.io/browse/QTBUG-141102