Hi! 
In the Developer Guide, the “Style” section for Power-Ups suggests using the trellicons icon font.
However, the relevant @font-face is not in power-up.css, so I’m now wondering what’s the best way to use it in our power-ups (short of downloading a version of the font and packaging it together with the power-up - not ideal, obviously, for caching reasons and because it would become outdated).
Any suggestions? 
Most of those last couple of sentences is really out of date. I’ve gone ahead and removed them to reduce confusion. We don’t actually recommend using Trellicons anymore. Everything that we expect you to use will be included in the