

Left and right advertisement images beside a boxed theme.
Clickable Background Image turns the empty space on either side of a boxed or narrow theme into advertising space. Pick one image for the left side and one for the right, give each its own link, and visitors who click the side of the page go to the advertiser.
rel="sponsored", as search engines ask for paid links.Settings are under Appearance Clickable Background.
Developers can hide the images on specific pages with the iwsm_cbi_display filter:
add_filter( 'iwsm_cbi_display', function ( $display ) { return is_page( 'contact' ) ? false : $display; } );