I'm running Elementary OS for some years now (since Freya) as my main OS and currently I'm on Hera (with the latest updates). Recently I decided to switch some applications that I was installing from custom or 3rd party PPAs to their Flatpak counterpart since they are more up to date and in many cases they are official releases from the developer teams which I trust more.
I'm using the "Tweaks" add-on and I have set there the "Prefer dark variant" setting to true. It works great so far as any application that supports a dark theme or mode will use that by default (ie: Firefox, Files, Mail, Remmina, etc).
Now the issue is that for Flatpak applications it doesn't work. For example Remmina will use the light theme. I tried the same apps installed through Snap instead of Flatpak and they do honor the "Prefer dark variant" setting.
I checked within Flatpak (flatpak list) and I found that elementary stylesheet is installed:
Name Application ID Version Branch Installation elementary stylesheet org.gtk.Gtk3theme.elementary 3.22 system
I also try to modify ~/.config/gtk-3.0/settings.ini by adding:
But it didn't help either.
Now my questions are:
- Is this a known limitation of flatpak apps in Hera?
- Is this caused by "dark theme" information missing from elementary stylesheet in the flatpak package?
- I'm missing something? Some additional configuration?