ul.contact > li::after,
  ul li.contact::after      { mask-image: url(https://ketri.dev/res/file/0a28f080/0c683212/icon-contact-form.svg);  }

  ul.slider > li::after,
  ul li.slider::after       { mask-image: url(https://ketri.dev/res/file/0a28f080/ee95b3aa/icon-layout.svg);   }

  ul.gallery > li::after,
  ul li.gallery::after      { mask-image: url(https://ketri.dev/res/file/0a28f080/2b011926/icon-gallery.svg);  }