There's Wagtail CMS Admin Styleguide Available

In case you didn't know and always been wondering about the next wagtail admin icon class, there's Wagtail CMS admin styleguide which comes with core packages.

To enable it just update your INSTALLED_APPS config:

INSTALLED_APPS = [
    # ...
    "wagtail.contrib.wagtailstyleguide",  # or 'wagtail.contrib.styleguide' if you're on Wagtail v2+
    # ...
]

And you're ready to access the guide via http://localhost:8000/admin/styleguide/