#2 Sep 05, 2014 05:39
I would like to say you a couple of things. The first one is that the Mystique skin doesn't support Colorbox, it is shipped with Fancybox instead. So, if you look at the sample file included in
mystique/resources/fancyapps/demo/index.html, you will realize how to declare the gallery and the "buttons" helper to get the play, pause, next and previous buttons working properly.
Also, in this page: http://fancyapps.com/fancybox/ (look for Extended functionality > Button helper) you will find another example that I tested myself and works as supposed. Actually, I got your own content working in my local test site (see screenshot above).
Last but not least, you need to update the Mystique skin to version 2.0.3 (http://skins.b2evolution.net/mystique-1), which is now supporting the "Helper" libraries of the FancyBox plugin. After that, you should go to the skin's settings page of your blog and enable the FancyBox Helper checkbox.
If you need further help with any of the topics mentioned above, please tell me.