// Register Theme Features function custom_theme_features() { // Add theme support for Custom Header $header_args = array( 'default-image' => 'http://www.example.com/some-image.png', 'width' => 600, 'height' => 200, 'flex-width' => true, 'flex-height' => true, 'uploads' => true, 'random-default' => false, 'header-text' => true, 'default-text-color' => 'Site Name', 'wp-head-callback' => '', 'admin-head-callback' => '', 'admin-preview-callback' => '', 'video' => true, 'video-active-callback' => '', ); add_theme_support( 'custom-header', $header_args ); } add_action( 'after_setup_theme', 'custom_theme_features' );