Not sure it would be possible, because you can change the body background color it with the code below, but the other elements inside the page have(or might have) their own background colors.
Hi, another is the full width option since I use this option everything is full width except the page heading breadcrumbs, where can I enable for this to full width as well?
sorry for unclear
What i meant is since my header bg is black
I have to set Link Color to white so I can see my link menu clearly
but when I do that on the white page I can’t see white links