Put fa icon in notes text

[MarkE]

Does anyone know how I can insertt a font awesome icon into notes text for a field?

For example, I currently have this in the definition of a config inputfield for a module:

$f->notes = $this->_("Needs to be a page with Category template (right-caret icon). Create one if it doesn't already exist.");

I would like to show the actual icon rather than just describe it

[bernhard]

<?php
$f->entityEncodeText = false;
$f->notes = str_replace(
	"[icon]",
	"<i class='fa fa-check'></i>",
	$this->_("Some text [icon] Some more Text.")
);