Hi,

I wrote a plugin called title changer, which can be found here.
http://dev.bukkit.org/bukkit-plugins/titlechanger/

This plugin hooks into Vault, but one issue I face is that once a user sets a title, using setPlayerPrefix method, it resets their rank name color to white, is there any ways to avoid this? There's more information in the comments.

Thanks

you most likely need to include color codes in the prefix, Vault doesn't interpret prefixes, it just sets them in the backend that the server is using.