I did locate another tutorial here related to this topic, but I didn't see any information about how to customize a "specific value" in regard to a class in the extra.less template, I found a few bits of information online, but nothing has worked so far. I'm trying to color a specific...
Simple css (extra.less) modifications to highlight/separate sticky threads
Separate sticky and normal threads
Insert code in template: extra.less
/* Border between sticky/normal threads */
border-bottom: 6px solid;