Just played around with that a little bit and added some CSS to my theme to make glossary links appear in the standard text color with a dotted underline.
a.linkify-word {
text-decoration-line: underline;
text-decoration-style: dotted;
color: $primary;
text-underline-offset: 0.1em;
}
(Browser-compatibility for text-underline-offset is not great yet, but at least on Firefox (Desktop) and Safari it makes this look a little nicer.)
Examples:
- Light Theme, Desktop Safari

- Minima Theme Dark, Mobile Safari
