I have a perspective table component and I changed the header to a darker color and when I enabled the filter I changed that to match. Unfortunately, that means that the filter results text is hard to read. I used DevTools and was able to find where the color was set and changed it in the stylesheet but it did not work. I am sure I am just having a massive brain cramp and for some reason cannot find it. I applied it here, but not sure that is where it should be.
.psc-itemTrackerTable .tableFilter .filterResults {
color: #FFFFFF;
font-weight: 600;
}