Set background colours, so that the unsupported label doesn't show up while images are loaded.
Set background colours, so that the unsupported label doesn't show up while images are loaded.

danieleggert/contentful.objc,davidmdavis/contentful.objc,akfreas/contentful.objc,davidmdavis/contentful.objc,danieleggert/contentful.objc,contentful/contentful.objc,davidmdavis/contentful.objc,contentful/contentful.objc,akfreas/contentful.objc,contentful/contentful.objc,akfreas/contentful.objc,danieleggert/contentful.objc