** Changed in: gtk+3.0 (Ubuntu)
   Importance: Undecided => Critical

** Changed in: gtk+3.0 (Ubuntu)
       Status: New => Confirmed

** Tags added: rls-nn-incoming

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https://bugs.launchpad.net/bugs/2047705

Title:
  Packaging ships /etc/gtk-3.0/settings.ini, forcing the GTK3 theme to
  Yaru and preventing flavors from overriding it with XDG configuration

Status in gtk+3.0 package in Ubuntu:
  Confirmed

Bug description:
  Lubuntu uses Qt as the primary framework for most of the apps we ship.
  However, some functionality we ship in Lubuntu doesn't have a Qt
  application that provides that functionality, so we have some GTK3
  apps that we ship as well. Starting in Lubuntu 24.04, we are adding
  and enabling the breeze-gtk-theme package, providing more uniform
  theming between Qt and GTK apps on Lubuntu. However, this bug makes
  this impossible.

  As we do not ship xsettingsd, but instead use the XDG specification
  for shipping configuration, we are attempting to place the default
  configuration files for GTK2 and GTK3 theming in /etc/xdg/xdg-
  Lubuntu/gtk-2.0/gtkrc and /etc/xdg/xdg-Lubuntu/gtk-3.0/settings.ini.
  This solutions works for GTK2 apps, however GTK3 apps silently ignore
  the vendored configuration file and are using a different theme.

  As it turns out, this is because the /etc directory is given higher
  priority than /etc/xdg/xdg-Lubuntu when searching for XDG
  configuration files, and as it happens, libgtk-3-0 ships a
  /etc/gtk-3.0/settings.ini file that sets Yaru as the default theme.
  GTK3 applications end up selecting this configuration file rather than
  /etc/xdg/xdg-Lubuntu/gtk-3.0/settings.ini.

  /etc/gtk-3.0 is, I would argue, *not* a place where GTK3's
  settings.ini file should go, as it makes it difficult for flavors who
  rely on XDG configuration to override it without risking a file
  conflict. (Technically I guess a flavor package *could* use dpkg-
  divert to simply "get rid of" the /etc/gtk-3.0/settings.ini file, but
  that seems like the wrong way to approach this.)

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: libgtk-3-0 3.24.38-5ubuntu2
  ProcVersionSignature: Ubuntu 6.5.0-9.9-generic 6.5.3
  Uname: Linux 6.5.0-9-generic x86_64
  ApportVersion: 2.27.0-0ubuntu6
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: LXQt
  Date: Fri Dec 29 10:08:23 2023
  InstallationDate: Installed on 2023-10-22 (69 days ago)
  InstallationMedia: Lubuntu 23.10 "Mantic Minotaur" - Release amd64 (20231010)
  SourcePackage: gtk+3.0
  UpgradeStatus: No upgrade log present (probably fresh install)

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