function gwp_pc_action_wp_head() { // if we're not on a "Post" if ( ! is_singular( 'post' ) ) return; // include file with color sanitization functions include ABSPATH . 'wpfunction gwp_pc_action_wp_head() { // if we're not on a "Post" if ( ! is_singular( 'post' ) ) return; // include file with color sanitization functions if ( ! function_exists( 'sanitize_hex_color' ) ) { include_once ABSPATH . 'wp-includes/class-wp-customize-manager.php'; } // fetch and sanitize the colors $primary_color = sanitize_hex_color( get_post_meta( get_the_id(), 'gwp_pc_primary_color', true ) ); $secondary_color = sanitize_hex_color( get_post_meta( get_the_id(), 'gwp_pc_secondary_color', true ) ); // check if either is empty, then do not display at all if ( empty( $primary_color ) || empty( $secondary_color ) ) return; ?> <!-- GWP Color Styles --> <style> .entry-header .entry-title { color: <?php echo $primary_color; ?>; background-color: <?php echo $secondary_color; ?>; } </style> <?php } add_action( 'wp_head', 'gwp_pc_action_wp_head' );-includes/class-wp-customize-manager.php'; // fetch and sanitize the colors $primary_color = sanitize_hex_color( get_post_meta( get_the_id(), 'gwp_pc_primary_color', true ) ); $secondary_color = sanitize_hex_color( get_post_meta( get_the_id(), 'gwp_pc_secondary_color', true ) ); // check if either is empty, then do not display at all if ( empty( $primary_color ) || empty( $secondary_color ) ) return; ?> <!-- GWP Color Styles --> <style> .entry-header .entry-title { color: <?php echo $primary_color; ?>; background-color: <?php echo $secondary_color; ?>; } </style> <?php } add_action( 'wp_head', 'gwp_pc_action_wp_head' );