The phrase "gold highlight" refers to the shining or emphasizing of something valuable or important, just like highlighting a word in gold color draws attention to it.
Sentences with «gold highlight»
A stunning swirling marble effect, shown in the rose quartz with gold highlights. (wallpaperdirect.com)
I'm also wearing the rose gold highlight, although you can't really see it, and the lip tint. (katelouiseblogs.com)
More gold highlights can be found on wheel covers and front grille. (team-bhp.com)