Shoutbox default emoticons have opaque background

Greetings,

The default emoticons packaged with JJShoutbox have background portions that are opaque instead of transparent. This is readily apparent if you display the shoutbox over any other background color than white.

Example: i.imgsafe.org/757873b929.png

It would be nice if the files could be touched up so that the emoticons are over a true transparent background so that they display properly on a wider range of background colors.