Disable ?Blog“ box below the navigation menu/over the header

Hello there!

I am currently working on moving my blog to www.remarpro.com and am looking for a theme. I really like Mega Blog and would like to use it but there’s one thing that’s bothering me.
My blog title and description are part of my header so I usually only display the image and hide the title and description. With Mega Blog though there’s always a half-transparent white box over the header image so you can’t read it. I think the box usually reads “Blog” if you don’t put anything else in it. In the Customizer I did find how to change the text in this box but I want the box to disappear entirely. Is that possible?

Thanks in advance for the help!