{
  programs.rofi = {
    enable = true;
    colors = { };
  };

  test.asserts.assertions.expected = [
    (
      let
        offendingFile = toString ./config-with-deprecated-options.nix;
      in
      ''
        The option definition `programs.rofi.colors' in `${offendingFile}' no longer has any effect; please remove it.
        Please use a Rofi theme instead.
      ''
    )
  ];
}
