wagtail/client/scss/components/_privacy-indicator.scss

.privacy-indicator {
  .label-private,
  .label-public {
    &:before {
      font-size: 1.5em;
    }
  }

  &.public {
    .label-private {
      display: none;
    }
  }

  &.private {
    .label-public {
      display: none;
    }
  }
}