Bug 513307

Summary: Some context menu sub-menus in Plasma have square corners, and are also visually broken even worse when menu translucency is turned on in the Breeze QStyle
Product: [Plasma] plasmashell Reporter: agarplayerarlon
Component: generalAssignee: Plasma Bugs List <plasma-bugs-null>
Status: CONFIRMED ---    
Severity: normal CC: kde, nate
Priority: NOR Keywords: regression
Version First Reported In: 6.5.4   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: screenshot of the issue
issue visible even without transparency

Description agarplayerarlon 2025-12-13 17:35:23 UTC
Created attachment 187590 [details]
screenshot of the issue

SUMMARY
I've noticed that if I right click on the Dolphin entry on the taskbar when it's not open, and I hover over either the "Remote" or "Recent" options, then the context menu that they create is broken with a black squared background, I'm attaching a screenshot of it.

STEPS TO REPRODUCE
1. Have dolphin closed
2. Right click on the Dolphin icon on the taskbar
3. Hover over either the "Remote" or "Recent" options with the mouse cursor

OBSERVED RESULT
Their context menu is broken with a black squared background

EXPECTED RESULT
The context menus should follow the breeze theme

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora KDE 43
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1

ADDITIONAL INFORMATION
Comment 1 agarplayerarlon 2025-12-14 12:49:58 UTC
btw I've noticed that this issue was introduced with plasma 6.5, because I've just tested 6.4.5 and it didn't have this issue
Comment 2 agarplayerarlon 2025-12-14 14:33:46 UTC
this is also happening on KDE Linux with the Plasma 6.6 dev version
Comment 3 Nate Graham 2025-12-16 22:50:04 UTC
Can reproduce with menu translucency turned on in the Breeze QStyle. 100% reproducible for me with the "Remote", "Recent", and "Devices" sub-menus in the context menu of a pinned-but-not-running icon for Dolphin.

The background of the desktop context menu is broken too, but in s different way: it's missing the blur entirely.

Context menus of desktop files and folders are fine, though.
Comment 4 agarplayerarlon 2025-12-17 00:47:31 UTC
(In reply to Nate Graham from comment #3)
> 100% reproducible for me with the "Remote", "Recent", and "Devices" 

I forgot to add that I can see the issue even without the translucency turned on because I can still see the black squared corners
Comment 5 agarplayerarlon 2025-12-17 00:57:22 UTC
Created attachment 187714 [details]
issue visible even without transparency
Comment 6 Nate Graham 2025-12-19 17:23:02 UTC
*** Bug 513462 has been marked as a duplicate of this bug. ***