I would like to use a photo for the header and have it fill the entire space

Store Design
1

I would like the entire header space to be a photo. https://alittletwistedjewelry.com/

I want the swirl with text to fill the entire header space. I’m using Debut theme.

2

I would like it to look like this https://www.littleshopofcuriosity.ca

3

I figured that out. Thank you.