'', 'default-text-color' => 'ffffff', 'width' => 1920, 'height' => $height, 'flex-height' => true, 'wp-head-callback' => 'book_author_blog_header_style', ); add_theme_support( 'custom-header', apply_filters( 'book_author_blog_custom_header_args', $header_args ) ); } add_action( 'after_setup_theme', 'book_author_blog_custom_header_setup' ); if ( ! function_exists( 'book_author_blog_header_style' ) ) : /** * Styles the header image and text displayed on the blog. * * @see book_author_blog_custom_header_setup(). */ function book_author_blog_header_style() { $header_text_color = get_header_textcolor(); /* * If no custom options for text are set, let's bail. * get_header_textcolor() options: Any hex value, 'blank' to hide text. Default: add_theme_support( 'custom-header' ). */ if ( get_theme_support( 'custom-header', 'default-text-color' ) === $header_text_color ) { return; } // If we get this far, we have custom styles. Let's do this. ?>