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If anyone's interested, here's some photos of the first venue to be fully decorated with the London 2012 branding, the Aquatics Centre. According to the press release, three different colour schemes are being used: purple for most of the outdoor venues, blue for water based sports, and orange for most of the indoor sports.
http://mm.gettyimages.com/mm/nicePath/locog?nav=pr170725661
http://mm.gettyimages.com/mm/nicePath/locog?nav=pr170725661