Channel

Channel properties are available to the channel in which that properties are associated with. By customizing an individual channel’s properties, you customize that particular channel.

Properties set in the <Provider> definitions are defaults for channels based on that provider. Properties set in <Channel> definitions override the defaults in the provider definition to customize the channel. For example, URLScaperProvider defines a url property. A default does not make sense here, thus a channel would naturally override this value.