I ended up commenting out a number of lines in ngg-smart-image-search-public.css so your search widget retains more of my child theme styling. I still can’t figure out why the Title of the widget won’t display, but it must be related to CSS its inheriting from my child theme.
As a matter of personal opinion, it seems a lot of additional work in the CSS to create the custom look of your search widget when I think most people would want to inherit the styling of their own theme.
Thanks again for a great plugin!