#rex-navi-page-install,
#rex-navi-page-media-manager,
#rex-navi-page-metainfo,
#rex-navi-page-modules,
#rex-navi-page-packages,
#rex-navi-page-templates,
a[href="index.php?page=yform/manager/table_edit"] {
    display: none !important;
}

#rex-start-of-page:before {
    content: 'Production';
    background-color: #f66;
}