Hello,
01. To modify the background color of the Header Row, please follow these steps:
1. Navigate to WoodMart > Header builder > edit default header (highlighted star icon) or you can go through the admin bar directly https://prnt.sc/Ct9ehRDvvDV9
2. Click on the Settings icon located in the Header Bottom Row– Navigate to the Style tab.
3. Change the background color as desired.
https://ibb.co/vXZKcrW
02. For the banner background color, Navigate to Pages > Edit Home Page with page builder and change the Row background color.
Best Regards