GTK3 apps are not resolving the theme when the `-dark` suffix is applied

[OlaoluwaM]

Is there an existing issue outlining your problem?

• I have searched the existing issues and they do not solve my problem.

Describe the bug.

Some gnome apps are no longer themed with the latest release. These apps were themed in the past release, though

Attach screenshots.

Latest Release:

Previous Release:

How did you install the theme?

From release (manual installation)

Are you running the latest release, and if not does the issue persist there?

• I am running on the latest release & the issue persists there

If using GTK4, have you symlinked the "gtk-4.0" folder?

• I have symlinked the gtk-4.0 folder.

What GNOME version are you seeing the bug on?

GNOME Shell 46.2

Any additional comments?

Everything else looks good. Great work!

[isabelroses]

Can you check if this issue is any similar to #255

[OlaoluwaM]

No, it doesn't seem related. The symlinks look correct:

total 28K
drwx------. 1 olaolu olaolu  100 May 28 07:01 .
drwxr-xr-x. 1 olaolu olaolu 1012 May 28 06:37 ..
lrwxrwxrwx. 1 olaolu olaolu   87 May 28 07:01 assets -> /home/olaolu/.local/share/themes/catppuccin-mocha-lavender-standard-dark/gtk-4.0/assets
lrwxrwxrwx. 1 olaolu olaolu   88 May 28 07:01 gtk.css -> /home/olaolu/.local/share/themes/catppuccin-mocha-lavender-standard-dark/gtk-4.0/gtk.css
lrwxrwxrwx. 1 olaolu olaolu   93 May 28 07:01 gtk-dark.css -> /home/olaolu/.local/share/themes/catppuccin-mocha-lavender-standard-dark/gtk-4.0/gtk-dark.css
-rw-r--r--. 1 olaolu olaolu   47 May 28 06:56 settings.ini
lrwxrwxrwx. 1 olaolu olaolu   94 May 28 07:01 thumbnail.png -> /home/olaolu/.local/share/themes/catppuccin-mocha-lavender-standard-dark/gtk-4.0/thumbnail.png

[isabelroses]

Do you know whether the applications are gtk2 or later, since we no longer support gtk2.

[OlaoluwaM]

Hmm, Is there a way to check? The affected applications seem to be those installed by default by Fedora

[OlaoluwaM]

ldd says that these apps are gtk-3 apps:

ldd /usr/bin/evince | rg gtk
	libgtk-3.so.0 => /lib64/libgtk-3.so.0 (0x00007fe264200000)

ldd /usr/bin/dconf-editor | rg gtk
	libgtk-3.so.0 => /lib64/libgtk-3.so.0 (0x00007fc55a000000)

[nullishamy]

Themed for me on Fedora Workstation 🤔

[nullishamy]

Testing seems to indicate evince is a GTK3 application too, for context. It is affected by gnome-tweaks' Legacy Applications option.

[nullishamy]

Can you ls -lah /home/olaolu/.local/share/themes/catppuccin-mocha-lavender-standard-dark to see what's in the symlink target?

[OlaoluwaM]

Hmm, it does work, but only if you execute the apps directly from the terminal. Try launching them as regular GUI apps and you'll see what I mean.

ls -lah /home/olaolu/.local/share/themes/catppuccin-mocha-lavender-standard-dark

total 4.0K
drwxr-xr-x. 1 olaolu olaolu  128 May 27 19:25 .
drwxr-xr-x. 1 olaolu olaolu  512 May 28 06:48 ..
drwxr-xr-x. 1 olaolu olaolu   62 May 27 19:25 cinnamon
drwxr-xr-x. 1 olaolu olaolu   64 May 27 19:25 gnome-shell
drwxr-xr-x. 1 olaolu olaolu   76 May 27 19:25 gtk-3.0
drwxr-xr-x. 1 olaolu olaolu   76 May 27 19:25 gtk-4.0
-rw-r--r--. 1 olaolu olaolu  378 May 27 18:03 index.theme
drwxr-xr-x. 1 olaolu olaolu   78 May 27 19:25 metacity-1
drwxr-xr-x. 1 olaolu olaolu   20 May 27 19:25 plank
drwxr-xr-x. 1 olaolu olaolu 2.4K May 27 19:25 xfwm4

I tried copying the contents of /home/olaolu/.local/share/themes/catppuccin-mocha-lavender-standard-dark/gtk-3.0 to ~/.config/gtk-3.0 and the result is this 🥲:

[OlaoluwaM]

Testing seems to indicate evince is a GTK3 application too, for context. It is affected by gnome-tweaks' Legacy Applications option.

As a workaround, I'll use the previous release for the "Legacy Applications" option in gnome-tweaks for now

[nullishamy]

Works fine when launching from the app launcher to for me. I suspect your GNOME/GTK environment vars are not being set correctly

[OlaoluwaM]

Works fine when launching from the app launcher to for me. I suspect your GNOME/GTK environment vars are not being set correctly

which envs would you suspect?

[OlaoluwaM]

I have the GTK_THEME env set btw

[nullishamy]

Was testing something unrelated, discovered our new builds are failing to theme GTK3 for whatever reason. Can repro, but only for GTK3 apps. It's related to the -dark suffix we apply to builds to get GTK4 to play nice.