SUMMARY Kubuntu 26.04 has a new default SVG wallpaper package that has both images and images_dark. When using that wallpaper, the 'Always use light variant' option is ignored, and the wallpaper theme comes from the global theme instead. STEPS TO REPRODUCE 1. Have an SVG wallpaper with both light and dark variants. 2. Switch wallpaper to 'Always use light variant.' OBSERVED RESULT Wallpaper stays the same EXPECTED RESULT Wallpaper should change to the light variant SOFTWARE/OS VERSIONS Operating System: Kubuntu 26.04 LTS KDE Plasma Version: 6.6.4 KDE Frameworks Version: 6.24.0 Qt Version: 6.10.2 Kernel Version: 7.0.0-14-generic (64-bit) Graphics Platform: Wayland
Probably related to bug 513876
It is not definitive that the problem is with SVG alone, although it is certainly evident with the Kubuntu 26.04 SVG wallpaper theme.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/6691
Git commit 7f0648c192d8bbfb8bd6262f984848b8cbc5e3b6 by Fushan Wen, on behalf of David W.. Committed on 07/06/2026 at 13:06. Pushed by fusionfuture into branch 'master'. wallpapers/image: Respect URL fragment for dark mode detection in MediaProxy When an image URL contains a "#dark" or "#light" fragment, respect that over the system color scheme when determining the darkMode query parameter. M +4 -1 wallpapers/image/plugin/utils/mediaproxy.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/7f0648c192d8bbfb8bd6262f984848b8cbc5e3b6
Git commit 27ce68191a82e9817af41bedf27db65af8338c46 by Fushan Wen. Committed on 07/06/2026 at 13:59. Pushed by fusionfuture into branch 'Plasma/6.7'. wallpapers/image: Respect URL fragment for dark mode detection in MediaProxy When an image URL contains a "#dark" or "#light" fragment, respect that over the system color scheme when determining the darkMode query parameter. (cherry picked from commit 7f0648c192d8bbfb8bd6262f984848b8cbc5e3b6) Co-authored-by: David W. <davidwild@gmx.com> M +4 -1 wallpapers/image/plugin/utils/mediaproxy.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/27ce68191a82e9817af41bedf27db65af8338c46
Git commit 54e8f02f57a998bfe8f08ff3a2698f5533c268ab by Marco Martin, on behalf of David W.. Committed on 08/06/2026 at 13:25. Pushed by mart into branch 'Plasma/6.6'. wallpapers/image: Respect URL fragment for dark mode detection in MediaProxy When an image URL contains a "#dark" or "#light" fragment, respect that over the system color scheme when determining the darkMode query parameter. M +4 -1 wallpapers/image/plugin/utils/mediaproxy.cpp https://invent.kde.org/plasma/plasma-workspace/-/commit/54e8f02f57a998bfe8f08ff3a2698f5533c268ab