[Bug 2168639] [NEW] Ubuntu Unity's Dark mode isn't working and wallpaper isn't showing up

Jonas Gamao Sat, 26 Sep 2026 12:16:21 -0700

Public bug reported:

Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-viridian-dark/index.theme: No such file or directory
Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-viridian/index.theme: No such file or directory
Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-bark-dark/index.theme: No such file or directory
Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-bark/index.theme: No such file or directory
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
--- 
ProblemType: Bug
ApportVersion: 2.36.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: unity
DistroRelease: Rhino Linux 2025.1
GsettingsChanges:
 
InstallationDate: Installed on 2022-10-23 (1434 days ago)
InstallationMedia: Ubuntu-Unity 22.10 "Kinetic Kudu" - Release amd64 (20221018)
Package: yaru-theme
PackageArchitecture: amd64
ProcEnviron:
 LANG=en_CA.UTF-8
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
ProcVersionSignature: Ubuntu 7.3.0-6.6-generic 7.3.0-rc4
Tags: devel rc-7.7.1+26.04.20260306-0ubuntu3 third-party-packages
Uname: Linux 7.3.0-6-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True


** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: yaru-theme (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-collected devel rc-7.7.1+26.04.20260306-0ubuntu3 
third-party-packages

** Also affects: yaru-theme (Ubuntu)
   Importance: Undecided
       Status: New

** Tags added: apport-collected devel rc-7.7.1+26.04.20260306-0ubuntu3
third-party-packages

** Description changed:

  Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-viridian-dark/index.theme: No such file or directory
  Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-viridian/index.theme: No such file or directory
  Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-bark-dark/index.theme: No such file or directory
  Sep 26 14:41:50 unity-control-center[13576]: Could not load 
/usr/share/icons/Yaru-bark/index.theme: No such file or directory
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
  Sep 26 14:41:49 unity-control-center[13576]: Unknown Tag: filename-dark
+ --- 
+ ProblemType: Bug
+ ApportVersion: 2.36.0-0ubuntu1
+ Architecture: amd64
+ CasperMD5CheckResult: pass
+ CrashDB: unity
+ DistroRelease: Rhino Linux 2025.1
+ GsettingsChanges:
+  
+ InstallationDate: Installed on 2022-10-23 (1434 days ago)
+ InstallationMedia: Ubuntu-Unity 22.10 "Kinetic Kudu" - Release amd64 
(20221018)
+ Package: yaru-theme
+ PackageArchitecture: amd64
+ ProcEnviron:
+  LANG=en_CA.UTF-8
+  LANGUAGE=en_CA:en
+  PATH=(custom, no user)
+  SHELL=/bin/bash
+  TERM=xterm-256color
+ ProcVersionSignature: Ubuntu 7.3.0-6.6-generic 7.3.0-rc4
+ Tags: devel rc-7.7.1+26.04.20260306-0ubuntu3 third-party-packages
+ Uname: Linux 7.3.0-6-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: N/A
+ _MarkForUpload: True

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https://bugs.launchpad.net/bugs/2168639

Title:
  Ubuntu Unity's Dark mode isn't working and wallpaper isn't showing up

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[Bug 2168639] [NEW] Ubuntu Unity's Dark mode isn't working and wallpaper isn't showing up

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