Empty class in ImageShow items?

Hello,

I'd like to change the font color for one single slide in the ImageShow module because some images are dark and some are light. I see an empty class in the figure tag (see screenshot). How can I fill it with my own class name so I can target it via CSS?

Thanks,
getimo

Adding a class would require to rewrite IS plugin. Instead you can targer figure element with :nth-child(y) selector.