DotNetNuke Module Level Skinning for modules like Catalook Store, Active Module, Interactive Webs and Portfolio module or any other DNN module that allows skinning level UI change.
This is normally essential for ensuring that the overall site looks professional in every page and every dynamic content added to that page. There must be consistent look and feel the UI. For example, Text and Typography: Leading, Kerning, Tracking, and Justification should remain unified throughout the site.