Bug 461075

Summary: a bad appearance of percent bars
Product: [Plasma] Oxygen Reporter: Duns <web>
Component: styleAssignee: Unassigned bugs <unassigned-bugs-null>
Status: REPORTED ---    
Severity: normal CC: agrinev98, nate, uhhadd
Priority: NOR    
Version First Reported In: 5.26.1   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: what appears

Description Duns 2022-10-27 16:42:39 UTC
Created attachment 153241 [details]
what appears

SUMMARY
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STEPS TO REPRODUCE
1. Open Showfoto i.g.
2. Go to Color - > brightness/contrast/gamma
3. The bars at the right side have a bad appearance

OBSERVED RESULT

The bars have a vertical, instead of horizontal contrast (betweeen empty/full value)

EXPECTED RESULT

An horizontal contrast
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
Operating System: KDE neon 5.26
KDE Plasma Version: 5.26.2
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 5.15.0-52-generic (64-bit)
Graphics Platform: X11
Processors: 2 × Intel® Core™ i3-7100 CPU @ 3.90GHz
Memory: 7,7 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 630
Manufacturer: MSI
Product Name: MS-7A74
System Version: 1.0

ADDITIONAL INFORMATION

It happens using (some) gtk themes (such as Oxygen), not with Breeze theme.
Comment 1 Duns 2022-10-27 16:44:10 UTC
I reported this bug, as an help request, on Italian Kubuntu forum (https://forum.ubuntu-it.org/viewtopic.php?f=73&t=650387&p=5316967#p5316967).