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;
        }
    }
}