nixos-config/system/home-manager/gtk.nix

{ lib, pkgs, ... }:

{
  home.packages = with pkgs; [ dconf ];
  home.pointerCursor.gtk.enable = true;

  dconf.enable = true;

  gtk = {
    enable = true;
    iconTheme = {
      name = "Adwaita";
      package = pkgs.adwaita-icon-theme;
    };
    gtk2.extraConfig = lib.generators.toINIWithGlobalSection { } {
      globalSection = { };
      sections = { };
    };
    gtk3.extraConfig = { };
    gtk4.extraConfig = { };
  };
}