* The following home-manager module does not make `quasselClient` dark. It makes some other things dark.
```
  qt = {
    enable = true;
    platformTheme = "gtk";
    style = {
      name = "adwaita-dark";
      package = pkgs.adwaita-qt;
    };
  };
```

However, outside of home-manager, using the NixOS modules, this _does_ work and makes `quasselClient` appear dark. Why?
```nix
  qt5 = {
    enable = true;
    platformTheme = "gnome";
    style = "adwaita-dark";
  };
}
```