<uap2:WebAccountProvider
Url = 'A string with a value between 1 and 32767 characters in length in the form of a valid web url.'
BackgroundEntryPoint = 'A string with a value between 1 and 256 characters in length.'
DisplayName = 'A string with a value between 1 and 256 characters in length.'
DisplayPurpose = 'A string with a value between 1 and 2048 characters in length.'
Square44x44Logo = 'A string with a value between 1 and 256 characters in length that ends with ".jpg", ".png", or ".jpeg" that cannot contain these characters: <, >, :, ", |, ?, or *. In this string, the / and \ characters cannot be the first or last characters.' >
<!-- Child Elements -->
uap2:managedUrls?
</uap2:webAccountProvider>