Hey Tom,
Thanks for writing in. In taking a look at the form on your site here:
https://vandermolenfineart.com/about/
It looks like that text shadow is being applied by the existing CSS on that site, not from the plugin code. In order to remove that text-shadow, you’ll want to troubleshoot where that’s being applied from in the style.css file on your site, or to add your own CSS declarations to override the text-shadow uniquely for these form elements.
In order to isolate what CSS is being applied to your form elements, as well as troubleshooting how that can be avoided/overridden, I’d recommend using a browser like Chrome and utilizing its “inspect element” tool to do just that.
If you have any questions, just let us know!