Black outline around the text of title and tagline

I love this layout, but for some reason there is a thin black outline around the title and tagline. It doesn’t show up when I use their default image, but no matter what image I upload it still shows. Does anyone know how to get rid of this. I need it simple. This is all new to me.
My site is https://www.throughthefatherseyes.com if you want to see what I mean.
Thanks!