Bug 454125

Summary: Inactive tab hover animation flickers a bit
Product: [Plasma] Breeze Reporter: Cristóbal Veas <cristobal.veas>
Component: QStyleAssignee: Plasma Bugs List <plasma-bugs-null>
Status: CONFIRMED ---    
Severity: minor CC: kde, nate, noahadvs
Priority: NOR    
Version First Reported In: 5.24.90   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Video reproducing the bug.
Slowed down version of the hover effect

Description Cristóbal Veas 2022-05-21 03:00:33 UTC
Created attachment 149051 [details]
Video reproducing the bug.

SUMMARY
When hovering over an inactive tab of Dolphin, Konsole, etc. the animation flickers a bit.

STEPS TO REPRODUCE
1. Open a tab in an application, for example Konsole.
2. Hover over the inactive tab using the cursor.

OBSERVED RESULT
The animation that appears when hovering over the inactive tab flickers.

EXPECTED RESULT
The animation appears smoothly when hovering over the inactive tab.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.24.90
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.4
Kernel Version: 5.17.9-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i3-2350M CPU @ 2.30GHz
Memory: 7.7 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 3000

ADDITIONAL INFORMATION
This didn't happen in KDE Plasma 5.24, the video shows a little more about this bug.
Comment 1 Nate Graham 2022-05-23 17:22:28 UTC
Cannot reproduce; looks perfect to me when I give it a try.
Comment 2 networkException 2022-06-25 10:59:02 UTC
Created attachment 150136 [details]
Slowed down version of the hover effect

I've also noticed this and made a slowed down recording of the effect.

Apparently on enter and leave of the inactive tab the hover color will get brightened resulting in it looking like a flicker at normal speed and normal resolution.

I'm not sure if this is intended, to me at least it looks like an imperfection.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.25.1
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.5
Kernel Version: 5.18.5-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: AMD Radeon RX 6700 XT
Comment 3 Nate Graham 2022-06-27 16:24:13 UTC
Can reproduce when I make the animation speed super slow.