Mark
A highlight the server renders around a run of text it has already matched. .hui-mark is a hit; .hui-mark--warning is a match the reader should worry about.
Use a real <mark> element where the highlight carries meaning, so it is not lost on a reader who cannot see the colour. The highlight survives forced colours, where colour alone would disappear.
.hui-mark
A search hit or flagged word: the text in --hui-foreground on the --hui-mark highlight. Add --warning for a match that is a problem rather than a hit. Under forced colours the highlight becomes an underline.
Search results for <mark class="hui-mark">Home-UI</mark>.hui-mark--warning
A marked word that is a problem rather than a hit, on the destructive tint.