Nautilus has 2px border around it

[SolsticeSpectrum]

Describe the bug
Nautilus has 2px border around it for some reason even tho no other app has it

Mention your distribution and your theme version
Arch Linux

Select how you installed the theme

• GitHub Releases
• AUR package
• Nixpkg
• Using the python install script
• Flatpak

Symlinked the gtk-4.0 folder?
Yes

Expected behavior
Nautilus should not have this border

Screenshots

Additional context
I used Graphite theme before and it's install.sh script had --tweaks rimless option which removed this border in Nautilus so maybe study how that works here? https://github.com/vinceliuice/Graphite-gtk-theme

[SolsticeSpectrum]

Actually the Colloid theme has this rimless tweak as well but I guess it does not work with Nautilus?
Does the Aur package use rimless tweak or not? If not, how can I retrospectively change it?

The rimless option doesn't fix it

[Yonnji]

You can play around with "window.solid-csd" selector in the gtk-4.0/gtk.css file (or gtk-dark.css for the dark version).

window.solid-csd {
  padding: 0;  /* removes the padding */
  border: none;  /* removes the border */
  box-shadow: none;  /* removes the double border */
}

I wouldn't recommend removing everything because you will not be able to resize the window without any borders, but you can try each option and check how it works for you.

[SolsticeSpectrum]

@Yonnji Omg thank you so much! This did help! It might be worth to add as a configuration when installing.

[nullishamy]

This should be reported upstream, and ideally PRd into upstream if there is indeed a bug. Doesn't seem like a downstream issue.