Colour is a bit difficult to comment on, partly because every monitor looks a bit different. In cotton fabric Stone Age Jack (pink) trends more towards orangish (but redder than the original). If you're after brightest colours make sure you don't choose one with "lo" in the title, because that has a lower saturation. I can say the paper does tend to come out very bright.
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Date: 2013-11-10 11:34 am (UTC)If in doubt there's the Stone Age Jack (green xs) http://www.spoonflower.com/designs/2402736?view=67089
I have this green one as a paper and it's very bright: http://www.spoonflower.com/designs/1374631
Hope that helps!