wp-includes/theme.php:3092Do not use. Removes theme support internally without knowledge of those not used by themes directly.
$featurestringboolfunction _remove_theme_support( $feature ) { global $_wp_theme_features; switch ( $feature ) { case 'custom-header-uploads': if ( ! isset( $_wp_theme_features['custom-header'] ) ) { return false; } add_theme_support( 'custom-header', array( 'uploads' => false ) ); return; // Do not continue - custom-header-uploads no longer exists. } if ( ! isset( $_wp_theme_features[ $feature ] ) ) { return false; } switch ( $feature ) { case 'custom-header': if ( ! did_action( 'wp_loaded' ) ) { break; } $support = get_theme_support( 'custom-header' ); if ( isset( $support[0]['wp-head-callback'] ) ) { remove_action( 'wp_head', $support[0]['wp-head-callback'] ); } if ( isset( $GLOBALS['custom_image_header'] ) ) { remove_action( 'admin_menu', array( $GLOBALS['custom_image_header'], 'init' ) ); unset( $GLOBALS['custom_image_header'] ); } break; case 'custom-background': if ( ! did_action( 'wp_loaded' ) ) { break; } $support = get_theme_support( 'custom-background' ); if ( isset( $support[0]['wp-head-callback'] ) ) { remove_action( 'wp_head', $support[0]['wp-head-callback'] ); } remove_action( 'admin_menu', array( $GLOBALS['custom_background'], 'init' ) ); unset( $GLOBALS['custom_background'] ); break; } unset( $_wp_theme_features[ $feature ] ); return true;}Introduced in 3.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/theme.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.