Slideshow Manager

Hey, I'm using slideshow manager in a new project. It works great, but I just have something I want to change but can not find how.

When you have a slide then you must fill in a Title and Description. These item are shown in a small bar under the picture. I want the bar only to show up when the user is going over the pic with the mouse cursor. So the text may not be there always. I can change the css in headTpl for the lettertype etc..., but how do I change this mouse-over issue? Thx for help and tips.