Background stage question

Hello Developers,

I normally use the stage colour as the background, but I want to change the colour of the background for one scene in a new IOS app I am coding.  This scene will have some objects that are animated.  I just want to use a solid colour.

Is the best way to do this is to use bitmaps of small dimensions (say 64 by 64) or to use small vectors shapes, from an efficiency standpoint?  I normally set the app with GPU mode and not Direct.

Any links or tips is most appreciated.

Thanks,

Justin