roles/kde/plasma.nix

@@ -1,6 +1,19 @@
 { config, pkgs, lib, flakeSelf, ... }:
 
 let
+	themeName = "Breeze";
+	gtk3and4settings = lib.generators.toINI {} {
+		Settings = {
+			gtk-theme-name = themeName;
+			gtk-cursor-theme-name = "breeze_cursors";
+		};
+	};
+
+	gtk2settings = ''
+	include "/run/current-system/sw/share/themes/${themeName}-Dark/gtk-2.0/gtkrc"
+	gtk-theme-name="${themeName}-Dark"
+	'';
+
 	# Set up the default kde options
 	kdeglobals = lib.generators.toINI {} {
 		KDE.LookAndFeelPackage = "org.kde.breezedarktint.desktop";
@@ -75,9 +88,41 @@ in
 		displayManager.defaultSession = "plasmawayland";
 	};
 
+
 	# GTK apps need dconf to grab the correct theme on Wayland
 	programs.dconf.enable = true;
 
+	# The NixOS dconf module doesn't support creating databases
+	# (https://github.com/NixOS/nixpkgs/issues/54150), so I'm
+	# doing it manualy
+
+	# https://help.gnome.org/admin/system-admin-guide/stable/dconf-custom-defaults.html.en
+	environment.etc = {
+		"dconf/profile/user".text = "user-db:user\nsystem-db:local";
+		"dconf/db/local.d/00-defaultTheme".text = ''
+			[org/gnome/desktop/interface]
+			gtk-theme='${themeName}'
+		'';
+	};
+
+	system.activationScripts = {
+		dconf = {
+			text= ''
+			echo "updating system dconf database..."
+			${pkgs.dconf}/bin/dconf update
+			'';
+			deps = [ "etc" ];
+		};
+	};
+
+	# Set up GTK to use Breeze instead of adwaita by default
+	# Theese only seem to work on X11, not wayland
+	environment.etc = {
+		"xdg/gtk-4.0/settings.ini".text = gtk3and4settings;
+		"xdg/gtk-3.0/settings.ini".text = gtk3and4settings;
+		"gtk-2.0/gtkrc".text = gtk2settings;
+	};
+
 	/*
 	Install the patched Breeze color schemes and look and feel packages,
 	as well as the plasma default configs
@@ -87,15 +132,6 @@ in
 	# Plasma configs should be on all users
 	home-manager.sharedModules = [{
 		imports = [ flakeSelf.inputs.plasma-manager.homeManagerModules.plasma-manager ];
-		gtk = {
-			enable = true;
-			cursorTheme = { package = pkgs.breeze-icons; name = "breeze-cursors"; };
-			iconTheme = { package = pkgs.breeze-icons; name = "breeze-dark"; };
-			theme = { package = pkgs.breeze-gtk; name = "Breeze"; };
-			# Gtk2 doesn't have a dark mode, so I just tell gtk 3 and 4 to use the dark variant
-			gtk3.extraConfig.gtk-application-prefer-dark-theme = true;
-			gtk4.extraConfig.gtk-application-prefer-dark-theme = true;
-		};
 		programs.plasma = {
 			enable = true;
 			workspace.clickItemTo = "select";