Understanding Branding Objects
PeopleTools branding allows you to create and maintain branding objects such as HTML, JavaScript, free form style sheets, and images without requiring access to Application Designer. These objects can then be used in places such as branding system definitions, headers or footers, custom layout objects for pagelets and classic homepage tabs, and in other definitions.
While you can create and maintain HTML, JavaScript, free form style sheet objects, and images in Application Designer, these Application Designer objects are not accessible to be viewed or maintained through portal branding. But, if you enter the same name as an existing Application Designer object and if you have edit permissions on the managed object, then you will be prompted as to whether you want to overwrite the existing object through portal branding. However, objects that you create through portal branding can be viewed and updated in Application Designer.
Note:
You can use Application Designer to migrate these portal branding objects from a test environment to a production environment. However, these objects will be treated as regular managed objects in the new system, and will not be accessible from these portal branding pages in the new system.