Dark mode on Gnome/GTK

[ramonsmits]

I'm using Audacious on Fedora 41 and installed it via the RPM package manager.

I'm a "dark mode" user and noticed Audacious not using it. I can't locate a setting but I thought because it uses GTK it should automatically use this.

Does this require something on my end or does this need a change in Audacious to support dark mode?

[radioactiveman]

You may need to set the environment variable GTK_THEME to a dark theme, for example with export GTK_THEME=Adwaita:dark.

Another option is to use gnome-tweaks where the theme for GTK 3 applications can be set under Appearance -> Legacy applications.

[ramonsmits]

Interesting, I don't have that Yaru-Dark in Tweaks.

So I learned that Audacious is based on GTK3 and Fedora 41 uses GTK 4:

I have 3 options:

• Adwaita
• HighContrast
• HighContrastInverse

The last pretty much seems like dark mode. Changing these immediate updates Audacious. Keeping it on HighContrastInverse shows me this:

You may need to set the environment variable GTK_THEME to a dark theme, for example with export GTK_THEME=Adwaita:dark.

After googling on GTK_THEME I found that GTK3 settings are stored in ~/.config/gtk-3.0/settings.ini and I updated it to:

[Settings]
gtk-application-prefer-dark-theme=1

That enabled Dark mode for me!

[radioactiveman]

My screenshot is from Ubuntu, Yaru is its default theme. Glad you found a solution. 👍

https://www.baeldung.com/linux/gtk-applications-dark-theme gives some more information about it.