General Jelly Bean & Nova question (Grey>Black notification bar)

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http://androidforums.com – I noticed that when I installed Jelly Bean my notification bar went grey. Then I installed Nova, and it turned black. If you use Nova on Jelly Bean on an S3, what colour is your notification bar? The dev has been really helpful/communicative but tells me that Nova does not do this, though it happened at install and I can't think what else may be responsible for this (good, in my opinion!) change to the notification bar. (General)