[Plugin: WP FancyZoom] Shadow not visible

This is a great plugin! It works well for me except the shadows do not show up. I’m using the Thematic theme (https://themeshaper.com/). On Firefox, the shadow area appears as a transparent border. On Internet Explorer nothing shows up in the border area.

Just wondering if this is a plugin issue or perhaps a theme issue? If a theme issue, is there a way around it — anyone using Thematic out there?

Thanks.

https://www.ads-software.com/extend/plugins/wp-fancyzoom/