{
  config,
  lib,
  pkgs,
  vars,
  ...
}: {
  environment.systemPackages = with pkgs; [
    libsForQt5.qtstyleplugins
    libsForQt5.qtstyleplugin-kvantum
    #other stuff
  ];
  home-manager.users.${vars.user} = {
    qt.enable = true;

    # platform theme "gtk" or "gnome"
    qt.platformTheme = "gtk";

    # name of the qt theme
    qt.style.name = "adwaita";

    # detected automatically:
    # adwaita, adwaita-dark, adwaita-highcontrast,
    # adwaita-highcontrastinverse, breeze,
    # bb10bright, bb10dark, cde, cleanlooks,
    # gtk2, motif, plastique

    # package to use
    qt.style.package = pkgs.adwaita-qt;
  };
}