anchor.diff:            package = pkgs.i3-gaps;
             # i3 dependencies.
             extraPackages = with pkgs; [
  -            (python3Packages.py3status.overrideAttrs (oldAttrs: {
  -              propagatedBuildInputs = oldAttrs.propagatedBuildInputs ++ [
  -                python3Packages.i3ipc
  -                python3Packages.pydbus
  -                python3Packages.pygobject3
  -              ];
  -            }))
  +            (with python3Packages;
  +              (py3status.overrideAttrs (oldAttrs: {
  +                propagatedBuildInputs = oldAttrs.propagatedBuildInputs ++ [
  +                  i3ipc
  +                  pydbus
  +                  pygobject3
  +                ];
  +              })))
               compton-git
               dex
               dunst
  
positive.code:       enable = true;
  
        # Use LightDM.
        displayManager = {
          lightdm = {
            enable = true;
            greeters = {
  
negative.code:               enable = true;
                clock-format = "%a %d/%m %H:%M:%S";
                iconTheme = {
                  package = arc-icon-theme;
                  name = "Arc";
                };
                indicators = [ "~clock" "~session" "~power" ];
                theme = {
                  package = arc-theme;
                  name = "Arc-Dark";
                };
              };
  