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