Document the .bg-faded class

Fixes #20550.

diff --git a/docs/utilities/colors.md b/docs/utilities/colors.md
index 216941f95a0350117a16a4c28c1c95a9a7f662ab..f041f6947bd8863fab5103f456d1d2dce919017e 100644 (file)
--- a/docs/utilities/colors.md
+++ b/docs/utilities/colors.md
@@ -36,6 +36,7 @@ Similar to the contextual text color classes, easily set the background of an el
 <div class="bg-warning text-white">Etiam porta sem malesuada magna mollis euismod.</div>
 <div class="bg-danger text-white">Donec ullamcorper nulla non metus auctor fringilla.</div>
 <div class="bg-inverse text-white">Cras mattis consectetur purus sit amet fermentum.</div>
+<div class="bg-faded">Cras mattis consectetur purus sit amet fermentum.</div>
 {% endexample %}
 
 {% callout info %}