.pimcore_main_nav_icon_csv_export {
    background: url(/bundles/pimcoreadmin/img/material-icons/outline-format_list_bulleted-24px.svg) center center no-repeat !important;
}

.pimcore_main_nav_icon_es_run {
    background: url(/bundles/pimcoreadmin/img/material-icons/outline-refresh-24px.svg) center center no-repeat !important;
}