[twitter-dev] Profile background image set from statuses/show

[Nil Gradisnik - gTwitter dev]

There are lots of useful properties in Twitter REST API Method:
statuses show.
But I can't seem to find the information about "is the profile
background image is used or not" by user. It seems that this
information is no available from API: 
http://twitter.com/statuses/show/id.format.
Am I missing something here?