[hnlmorg]

> Thankfully, icon fonts are declining rapidly in usage

I wouldn’t be so sure about that. Resources like FontAwesome are still used heavily in VuePress and similar documentation generators.

[_heimdall]

I have one project using them, mainly because SVGs can be a bit of a pain to use in XSLT.

edit: it may not be SVGs themselves. The icons on that site are repeated and I would reach for an SVG sprite that can be reused, I ran into issues with that working cross browser in XSLT - Firefox was actually the problem if I'm not mistaken.