Notice, also, that the rfc talks specifically about classifying the alternate meaning, appropriately, with the class attribute.
Edit: I wonder what motivated it. "i" for images and no one uses it to italicize text anymore?
How to use
With v2.0.0, we have opted to use an <i> tag for all our icons, but they have no case class—only a shared prefix. To use, place the following code just about anywhere: