How to use attributed Strings with cocos2d?

how to use CCLabelTTF with ZAttributedString? Lets say开发者_如何转开发 I want a blue Text "Greetings to the World!" but I want the word "to" in red.

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ZAttributedString is part of FontLabel, an external library from Zynga that is packaged with Cocos2D. FontLabel uses ZFont, not CCLabelTTF, etc ...

Refer to here: https://github.com/zynga/FontLabel

It would appear they provide some very small examples, and you can peek into their UnitTests as well to see additional use cases.