Xfce dynamic theme setting issues

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1

Problem:

I have this script that I use in arch to toggle system wide dark/light mode

if [[ -x $(command -v xfconf-query) ]]; then
  xfconf-query -c xsettings -p /Net/ThemeName -s "Adapta-Nokto"
  xfconf-query -c xsettings -p /Net/IconThemeName -s "Papirus-Dark"
  xfconf-query -c xsettings -p /Gtk/CursorThemeName -s "Bibata-Modern-DarkRed"
fi

# https://github.com/ankitects/anki/pull/1905/files
if [[ -x $(command -v gsettings) ]]; then
  gsettings set org.gnome.desktop.interface gtk-theme 'prefer-dark'
fi

I’ve switched to nixos and I am trying to get this to work, but it doesn’t.

>xfconf-query -c xsettings -p /Net/ThemeName -s "Adapta-Nokto"
Property "/Net/ThemeName" does not exist on channel "xsettings". If a new property should be created, use the --create option.
> xfconf-query -c xsettings -l
/Gdk/WindowScalingFactor
/Gtk/ButtonImages
/Gtk/CanChangeAccels
/Gtk/ColorPalette
/Gtk/CursorThemeName
/Gtk/CursorThemeSize
/Gtk/DecorationLayout
/Gtk/DialogsUseHeader
/Gtk/FontName
/Gtk/IconSizes
/Gtk/KeyThemeName
/Gtk/MenuBarAccel
/Gtk/MenuImages
/Gtk/MonospaceFontName
/Gtk/TitlebarMiddleClick
/Gtk/ToolbarIconSize
/Gtk/ToolbarStyle
/Net/CursorBlink
/Net/CursorBlinkTime
/Net/DndDragThreshold
/Net/DoubleClickDistance
/Net/DoubleClickTime
/Net/EnableEventSounds
/Net/EnableInputFeedbackSounds
/Net/SoundThemeName
/Xft/Antialias
/Xft/Hinting
/Xft/HintStyle
/Xft/RGBA

My current nix setup is here

I am using the nix unstable channel

My setup consists of xfce for desktop manager and i3 for window manager

My setup is extensive, but the main file where I set this up is this one:

{
  programs.noisetorch.enable = true;
  # Needed to fix home-manager/guis.nix#gtk.enable
  programs.dconf.enable = true;
  programs.nm-applet = {
    enable = true;
    indicator = true;
  };
  programs.xss-lock = {
    enable = true;
    lockerCommand = "${pkgs.i3lock-fancy-rapid}/bin/i3lock-fancy-rapid";
  };
  qt = {
    enable = true;
    platformTheme = "gtk2";
    style = "gtk2";
  };

  programs.xfconf.enable = true;
  hardware.brillo.enable = true;
  services = {
    picom.enable = true;
    xserver = {
      enable = true;

      desktopManager = {
        xterm.enable = false;
        xfce = {
          enable = true;
          noDesktop = true;
          enableXfwm = false;
        };
      };

      # Touchpad
      libinput.enable = true;
      libinput.touchpad.tapping = true;

      displayManager = {
        defaultSession = "none+i3";
        lightdm.enable = true;
        autoLogin.enable = true;
        autoLogin.user = "reinaldo";
      };

      windowManager.i3 = {
        enable = true;
        extraPackages = with pkgs; [
          rofi #application launcher most people use
          # https://nixos.wiki/wiki/Samba
          lxqt.lxqt-policykit
          i3lock-fancy-rapid
          lxappearance
          alttab
          restic
          xdotool
          feh
          redshift
          qrencode
          xclip
          dunst
          libnotify
          scrot
          flameshot
          tdrop
          ncpamixer
          qalculate-qt
          picom
          # mimeo to handle default applications
          # keyword: xdg-open
          mimeo
          xdg-utils
          # TODO
          xdg-ninja
        ];
      };
    };
  };
}