[support] media_gallery module with colorbox

Hi everyone, I want to create photo gallery using media_gallery module ( https://drupal.org/project/media_gallery) one of the requirement is given in https://drupal.org/project/media_galleryis to unpack ColorBox jQuery plugin <http://colorpowered.com/colorbox> in sites/all/library. I downloaded the file colorbox-master.zip and extracted it in sites/all/library so the path of colorbox is sites/all/library/colorbox-master I am able to create gallery but effect of colorbox is not visible. please tell me what extra I have to do to make gallery photo as like overlay. in short my question is how to enable colorbox effect in my gallery? thank you