Rewaita breaks with nwg-look and distro themes (+adw-gtk3)

[sqrvrt]

So I'm using Rewaita flatpak (v1.1.0)

When setting theme to adw-gtk3, nwg-look does the following:

INFO[0012] >>> Exporting /home/main/.config/gtk-3.0/settings.ini 
INFO[0012] >>> Exporting /home/main/.gtkrc-2.0          
INFO[0012] >>> Exporting /home/main/.local/share/icons/default/index.theme 
INFO[0012] >>> Exporting /home/main/.config/xsettingsd/xsettingsd.conf 
INFO[0012] >>> Symlinking files in /home/main/.config/gtk-4.0 
INFO[0012] >>> Exporting /home/main/.config/gtk-4.0/settings.ini 

Indeed, this is the ls output after wiping the dirs beforehand:

main@gentoo ~> ls ~/.config/gtk-3.0/ -l
total 4
-rw-r--r-- 1 main main 476 Jan  3 01:13 settings.ini

main@gentoo ~> ls ~/.config/gtk-4.0/ -l
total 12
lrwxrwxrwx 1 main main  47 Jan  3 01:13 gtk-dark.css -> /usr/share/themes/adw-gtk3/gtk-4.0/gtk-dark.css
lrwxrwxrwx 1 main main  42 Jan  3 01:13 gtk.css -> /usr/share/themes/adw-gtk3/gtk-4.0/gtk.css
-rw-r--r-- 1 main main 207 Jan  3 01:13 settings.ini

It's worth noting that symlink destinations are not writable by the user, i.e. they are a distro theme.

Finally, using Rewaita after this prompts it to echo Error moving file: [Errno 2] No such file or directory: '/home/main/.config/gtk-4.0/gtk.css'. The theme resets on closing the app which indicates that it fails to apply.

However, when the ~/.config/gtk-4.0/*.css files are dereferenced the theme applies successfully. But the gtk3 theme stays unthemed adw-gtk3. Is it possible to theme it too?

Edit: looks like to edit the gtk3 theme all you need is to symlink/copy the gtk4.0/gtk.css to equivalent gtk3 location.

[SwordPuffin]

It should theme both gtk3/4 out the box. Check preferences (hamburger menu), the default values got inverted so it may not be creating the gtk3 theme.

I need to know, are you using adw-gtk3 separately? Or is it the adw-gtk3 that is auto generated by Rewaita? Because when it is working as expected, no additional software (like nwl-look) would be required to set anything.

I was not able to exactly reproduce the 'no such file or directory' error, although I think I know why it happens. When Rewaita tries to write to the gtk.css file, it follows the symlink and writes to the endpoint. But when that endpoint is in the root directory, Rewaita obviously doesn't have the permission to write to it, and throws an error.