Création d’un fichier CSS pour utiliser ces classes d’habillage, suivie de l’ajout de ce fichier de projet principal index.mxml.

/* CSS file */ 
@namespace s "library://ns.adobe.com/flex/spark"; 
@namespace mx "library://ns.adobe.com/flex/mx"; 
@namespace presentation "com.adobe.solutions.acm.authoring.presentation.*"; 
@namespace custom "com.adobe.customizations"; 
@namespace customizations "com.adobe.customizations.*"; 
@namespace presentation1 "com.adobe.solutions.cmg.manage.presentation.*"; 
 
presentation1|AssetEditorsStack 
{ 
                skinClass : ClassReference("com.adobe.customizations.ExtendedAssetEditorStackSkin"); 
} 
 
custom|ExtendedLetterEditor 
{ 
                skinClass : ClassReference("com.adobe.customizations.ExtendedLetterEditorSkin"); 
}