.under4 {
    color: #c83c3c;
}
.under5 {
    color: #ffa532;
}
.under6 {
    color: #1e3285;
}
.over6 {
    color: #2d802d;
}

.big-data-ratings-cell .x-grid-cell-inner {
    font-weight: bold;
}