When extending your application, you can reuse the Product Catalog for Communications skin by completing the following steps:
Create a new skin with the same name as the application. See Creating a skin.
Navigate to the Inheritance tab. In the Skin inheritance text area, enter PCF, then save your changes.
Navigate to the Mixins tab. Ensure that no borders or background colors are defined.
Navigate to the Included styles tab.
In the Support presets drop-down menu, select Standard Pega application.
Select the Include legacy CSS for applications built prior to Pega 7 check box.
Save the changes to the newly created skin.