vBulletin thread is created on forum I don’t own where I want to track hits.
Forum admins are OKAY with hit trackers like StatCounter (etc) as long as a VISIBLE image is used. (Make sense so far?)
Piwik gives people the ability to do what StatCounter does, with one glaring exception. StatCounter lets you specify an invisible image, OR a set of pre-defined visible images.
How can I modify the piwik.php file so that instead of using an invisible 1x1 image that will get me banned by the vBulletin forum, I can instead use a VISIBLE image?