@function each($backdrop-brightness-config) {
  @each $key, $backdrop-brightness in $backdrop-brightness-config {
    $backdrop-brightness-config: map.set(
      $backdrop-brightness-config,
      $key,
      (
        --bs-backdrop-brightness: brightness($backdrop-brightness),
      )
    );
  }
  @return $backdrop-brightness-config;
}

$utilities: map-merge(
  $utilities,
  (
    "backdrop-brightness": (
      property: --bs-backdrop-brightness,
      class: backdrop-brightness,
      variants: backdrop-brightness,
      values: each($backdrop-brightness-config),
    ),
  )
);