Arbortext Editor supports all of the DITA elements and attributes for the purposes of editing. The most commonly used DITA elements and attributes are styled in the default Arbortext Styler stylesheets that are distributed with the default DITA and Technical Information document types. Some elements and attributes are not styled or not styled completely in the distributed Arbortext Styler stylesheets. Some of the specialized elements that are not styled will inherit styling from the base element from which the specialization was created. You may add styling for unstyled elements or customize the styling for elements and attributes that are already styled by creating new Arbortext Styler stylesheets from scratch or by modifying a copy of the distributed stylesheets. In addition, there are a few elements and attributes for which it is difficult to add styling using Arbortext Styler stylesheets without enhancements to the PTC ArbortextDITA support.