Hello,
01. Navigate to WoodMart > Header builder > edit default header (highlighted star icon) or you can go through the admin bar directly https://prnt.sc/Ct9ehRDvvDV9
Configure the header row settings and in the style tab change the row background color: https://ibb.co/7NXZN22x
02. To change the page title background color globally, go to Theme Settings > General > Page Title, and adjust the color under the “Pages Title Background” option. This will apply to all page titles across your site.
If you’d like to change the background specifically for the Cart page only, navigate to Pages > Edit Cart, then scroll to the Page Settings section at the bottom. There, you can set a custom background color or add an image just for the cart page title.
Best Regards,