There is a way to set gnome apps to prefer dark theme through command line?

Hi. I was trying schedule a task to tell all apps to prefer dark theme after sunset and I found a setting called gtk-application-prefer-dark-theme.

I did try make it throught gsettings, with following command:

$ gsettings set org.gnome.desktop.interface gtk-application-prefer-dark-theme true
# but this happened
No such key “gtk-application-prefer-dark-theme”

Looks like this key was deprecated, but looking on official docs we can see that not, it is still working (

What am I doing wrong? There is a way to tell Chrome, Firefox, visual-studio-code and all gtk apps that I prefer dark mode, like we can do on Windows 10 and MacOS?

If so, how?

You can’t.

GtkSettings has nothing to do with GSettings, so you cannot set that property with gsettings.

You’re not supposed to use GtkSettings:gtk-application-prefer-dark-theme to get a dark theme for all GTK3 applications; that property is for application developers to set.

You will need to set the desktop theme name to a dark theme, instead.

OK, but it doesn’t work to tell Chrome and others GTK apps that current theme is a dark theme. I will assume that this option is currently not available for Gnome.

Thank you for your fast response.

gsettings set org.gnome.desktop.interface gtk-theme 'Adwaita-dark'

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