lxappearance{,-gtk2}: move from lxde.lxappearance{,-gtk2}

pkgs/desktops/lxde/default.nix

@@ -9,12 +9,9 @@ lib.makeScope pkgs.newScope (
 
     inherit (pkgs) gtk2-x11;
 
-    lxappearance = callPackage ./core/lxappearance { };
+    lxappearance = throw "'lxappearance' has been moved to top-level."; # added 2025-08-31
 
-    lxappearance-gtk2 = callPackage ./core/lxappearance {
-      gtk2 = gtk2-x11;
-      withGtk3 = false;
-    };
+    lxappearance-gtk2 = throw "'lxappearance-gtk2' has been moved to top-level."; # added 2025-08-31
 
     lxmenu-data = throw "'lxmenu-data' has been moved to top-level."; # added 2025-08-31
 

pkgs/top-level/all-packages.nix

@@ -14422,11 +14422,11 @@ with pkgs;
   ### DESKTOPS/LXDE
 
   lxde = recurseIntoAttrs (callPackage ../desktops/lxde { });
-  # Backwards compatibility aliases
-  inherit (lxde)
-    lxappearance
-    lxappearance-gtk2
-    ;
+
+  lxappearance-gtk2 = callPackage ../by-name/lx/lxappearance/package.nix {
+    gtk2 = gtk2-x11;
+    withGtk3 = false;
+  };
 
   lxqt = recurseIntoAttrs (
     import ../desktops/lxqt {