Modul:Message box/ambox.css
.mw-content-rtl table.ambox {
border-right: 10px solid #f28500; /*orange*/
border-left: 1px solid #a2a9b1;
}
.mw-content-rtl table.ambox {
border-right: 10px solid #f28500; /*orange*/
border-left: 1px solid #a2a9b1;
}