Hi
At the moment, we can add animations on the skin, with a simple button (useful for the OVER state).
But it doesn't work if you use a checkbox (instead of a button).
In this case, the animation is not played, but all the frames are displayed vertically, directly on the skin. It seems VLC understands it as a normal image..
For instance, check my skin Navaga, it has this problem (you will need to uncoment some lines in theme.xml).
Could you please add animations for checkboxes too ? Thanks.