Manifest repository for the ProfilePayloads framework and ProfileCreator.
The payload manifest files are using Apple's Preference Manifest File format to describe the payloads and their keys.
Link: Preference Manifest Files for Managed Clients Overview
To meet all required functionality that format has been extended with more keys and options. Use this reference to create manifests for the ProfilePayloads framework and ProfileCreator.
Link: ProfileManifest Format
If you want to create your own manifest read the Getting Started wiki page for a quick start guide.