The color animation plugin seems to be broken, might be because of it becoming incompatible with the newer version of jQuery that’s included with Wordpress 3.5. It’s best you contact the Author directly for a solution.
Just an update, it doesn’t seem to be working with older browsers due to cross domain request restrictions. If this is a concern I would suggest using a php proxy method that sushipasta posted previously, you should also look into the following to get a better idea with how to work whit the API php side :-
Can you post a link to your website so I can take a look at the console and loaded plugins myself. Thanks!
Also you should try directly contacting the author:- http://themeforest.net/item/sentinell-responsive-wordpress-theme/3314808
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I bought your theme and I like it, but I need help with XYZ.
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