// Register Theme Features function custom_theme_features() { // Add theme support for Custom Background $background_args = array( 'default-color' => 'ffffff', 'default-image' => '', 'default-repeat' => '', 'default-position-x' => '', 'wp-head-callback' => '', 'admin-head-callback' => '', 'admin-preview-callback' => '', ); add_theme_support( 'custom-background', $background_args ); } add_action( 'after_setup_theme', 'custom_theme_features' );