$utilities: map-merge(
  $utilities,
  (
    "backdrop-filter": (
      property: backdrop-filter,
      class: backdrop-filter,
      variants: backdrop-filter,
      values: (
        null: var(--bs-backdrop-blur) var(--bs-backdrop-brightness)
          var(--bs-backdrop-contrast) var(--bs-backdrop-grayscale)
          var(--bs-backdrop-hue-rotate) var(--bs-backdrop-invert)
          var(--bs-backdrop-opacity) var(--bs-backdrop-saturate)
          var(--bs-backdrop-sepia),
        "none": none,
      ),
    ),
  )
);