[BUG] icons rendering in 'italics'

[jtkulas]

Just started playing around with this neat extension - thanks!

The icons seem to be rendering as italicized.

The YAML specification (slightly modified from your read.me):

---

custom-callout:
todo:
icon-symbol: "📝"
color: "pink"
thumbs-up:
title: "Great job!"
icon-symbol: "😃"
color: "#008000"

.qmd callout block:

::: {.thumbs-up title="That was a hard task!"}
You did a great job completing this task.
:::

renders the following HTML (I've just isolated the italics tags around the callout because it appears that those are the issue):

[coatless]

Thanks; I think this is because of the default way Quarto icons are specified with a tilt.

When I'm back; I'll clean up the CSS abit.