Have not been able to find anything about this when searching or using Slickedit. Sorry if its actually covered somewhere.
Some editors highlight CSS color codes in their actual color. Atom have (had, RIP) the pigments-plugin and VSC something similar. I.e. a #fff would be white, a #000 black, RGB (....) . Very useful little feature when navigating stylesheets.
Could Sickedit implement something similar?