https://bugs.kde.org/show_bug.cgi?id=508090

            Bug ID: 508090
           Summary: Support showing UltraHDR images as
                    wallpapers/lockscreens
    Classification: Plasma
           Product: plasmashell
      Version First master
       Reported In:
          Platform: openSUSE
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Wallpaper images
          Assignee: plasma-b...@kde.org
          Reporter: kiwifr...@seibmoz.anonaddy.me
  Target Milestone: 1.0

Created attachment 183936
  --> https://bugs.kde.org/attachment.cgi?id=183936&action=edit
UltraHDR image sample

SUMMARY
Currently, the wallpaper module of the plasmashell doesn't show HDR images as
HDR. I would like to have UltraHDR images displayed with the HDR gain map
correctly when set as wallpaper or as a lock screen.

STEPS TO REPRODUCE
1. Set an UltraHDR image as wallpaper or lockscreen
2. Observe it
3. It's not shown with the HDR brightness

OBSERVED RESULT
Images are shown as normal SDR images

EXPECTED RESULT
Images should be shown with HDR highlights when applicable.


SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20250808
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
Kernel Version: 6.15.8-1-default (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7800X3D 8-Core Processor
Memory: 32 GiB of RAM (30.5 GiB usable)

ADDITIONAL INFORMATION
Attached is a sample image to test with

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