Hello,
In order to change the color in the header, read and follow the instructions: https://xtemos.com/docs/woodmart/header-builder/header-rows-columns-configuration/ Also, some of the elements has the option to set the color.
Next, change the colors in the Theme Settings > Colors and Styles
Finally, enter each element which has not changed the color and find the option. For example, the Product tab has the option to set the color and it does not depend on the theme colors.
Best Regards