Bug 438360 - Plasma panel appears completely transparent with many translucent themes since 5.22 update.
Summary: Plasma panel appears completely transparent with many translucent themes sinc...
Status: RESOLVED WORKSFORME
Alias: None
Product: plasmashell
Classification: Plasma
Component: Panel (other bugs)
Version First Reported In: 5.22.0
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-06-09 20:09 UTC by nope1000000
Modified: 2021-07-10 04:33 UTC (History)
1 user (show)

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Description nope1000000 2021-06-09 20:09:19 UTC
SUMMARY

Since 5.22 update many Plasma themes are broken. When using them the panel appears completely transparent (widgets and icons are visible, there is just no background color, blurry effect, etc) when they are actually translucent. It happens with many themes, some others work ok. Changing the opacity options doesn't improve this and set it to "opaque" only makes the panel completely opaque. I have been doing test and it seems it has to do with the file /widgets/panel-background.svg inside the theme folder 

STEPS TO REPRODUCE
1. Upgrade to Plasma 5.22
2. Use some translucent theme like https://store.kde.org/p/1002614/ (it happens with many others too)
3. Panel appears like if it was a transparent theme

OBSERVED RESULT

Panel appears like if it was a transparent theme

EXPECTED RESULT

The panel appears with the correct background and translucent effects

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Fedora 34
(available in About System)
KDE Plasma Version: 5.22
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Comment 1 Nate Graham 2021-06-09 23:30:46 UTC
https://store.kde.org/p/1002614/ is not a Plasma theme, it's a Window decoration theme. However I found a Plasma theme of the same name: https://store.kde.org/p/998712/

I tried it on Plasma 5.22 and the theme appears to be working fine to me eye. So this far, I cannot reproduce the issue. Can you provide some examples of other themes that are broken for you, and also attach screenshots showing the broken appearance?
Comment 2 nope1000000 2021-06-10 08:21:56 UTC
Yes, my mistake. I was intending the Plasma theme with the same name. It's curious, because if I start a new user and try that theme it seems to work properly. I'm going to do further tests and see what can I find.
Comment 3 Bug Janitor Service 2021-06-25 04:33:45 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2021-07-10 04:33:43 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!