There is something amiss with the slideshow controls for the Shadowfax style. I think it must be in the css, I have had a look but am not experienced enough to see what is wrong (if anything! what do I know?).
When using the Slideshow in this style, the prev, next and close icons turn black on hover, however the slideshow button does not. You have to press the stop icon to start the slideshow and the start icon to stop it.
It would be great (for me anyway, as I love this style and it looks really good on my website) if we could fix this and I might learn a little more about css too!