Hover Color Change on Blog Post

Hi,
I see there are a variety of posts here in the forum on this topic, but they all seem to be from 2018 so I’m not sure if they are still relevant.

I’m working on a Newsroom page that serves as my Blog Landing page. The featured/blog image darkens on hover. I’d like to reduce or remove the overlay effect. Can you point me to the CSS selector or theme setting controlling it?

Here is the page I am referring to: https://nadatech.com/company/newsroom/

Thanks,
Dawn