I don't know how to apply dark theme gtk into this app

[vuongtuha]

I guess it's only my skill issue, not technical issue. But I cannot figure out how to apply GTK 3.0 theme into your appimage. If you knew how to do it, please guide me.
Thank you in adv!!

[Samueru-sama]

Is this the only GTK3 app that has the issue? What happens if you launch something like thunar?

[Samueru-sama]

hello?

[vuongtuha]

Sorry I was late,
I'm sure all GTK3 app ( like thunnar) and GTK4 app followed theme I set in Gnome Tweak.
Your appimage was installed into /opt dir by am command https://github.com/ivan-hc/AM
May I need to try any other GTK appimage to make sure?
Also my deadbeef follow with edited layer config in home user dir.

[Samueru-sama]

Can you try the GTK3 demo here and let me know if theming is still broken?

And also does the GTK3 demo have working theme if you install it with your distro's package manager? On archlinux the package is named gtk3-demos for example.

Can you also send screenshots?

[Samueru-sama]

cc @fiftydinar do you have any idea how Gnome Tweak works?

[fiftydinar]

cc @fiftydinar do you have any idea how Gnome Tweak works?

It just reads and sets gsettings value org.gnome.desktop.interface gtk-theme