CPS allows themers and designers to create a simplified pool of ready-made styles for site builders to choose from when laying out their pages. These translate directly to template and class changes in the DOM in a predictable way. Bridges the gap between styles applied to the site regions and styles applied to the content itself... where the "theme" ends and the WYSIWYG editor begins. Builds on the drag-and-drop content layout freedom that Panels provides. Allows editors to apply ready-made styles a themer has whipped up for them — without having to remember class names!