The loom-addons project is a separate container of visual components (JSP tags and javascript libraries) that are kept apart to keep complexity under control. While Loom includes controls that are common use, loom-addons keeps those oriented to more specific use cases.
Loom-addons releases its own jar artifacts with the same version numbers of the corresponding Loom version.
The addons library contains a list of JSP tags that can be used by including the following in your taglibs.jspf file:
<%@ taglib prefix="a" uri="http://loom.extrema-sistemas.org/loom-addons.tld" %>