.admin__menu #menu-calculus-thememanager-calculus-root > a:before {
    background-image: url('../images/CalculusSmall.png');
    background-position: center;
    background-repeat: no-repeat;
    background-size: 50px 50px;
    content: '';
    display: inline-block;
    height: 50px;
    margin: 0 auto;
    width: 50px;
}

.admin__menu [data-ui-id="menu-calculus-analyticstracking-dashboard"] > a:before {
    content: none;
    display: none;
    padding-top: 0;
}