+ * @section sec_overview Overview and terminology
+ *
+ * The Settings Tray module allows blocks to be configured in a sidebar form
+ * without leaving the page. For example:
+ *
+ * - For every block, one can configure whether to display the block title or
+ * not, and optionally override it (block configuration).
+ * - For menu blocks, one can configure which menu levels to display (block
+ * configuration) but also the menu itself (menu configuration).
+ * - For the site branding block, one can change which branding elements to
+ * display (block configuration), but also the site name and slogan (simple
+ * configuration).
+ *
+ * Block visibility conditions are not included the sidebar form.
+ *