Wordpress logo(image, link & title) customizer

function change_login_css() {
  echo '<style type="text/css">
    h1 a {
      background-image: url('.get_stylesheet_directory_uri().'/images/wordpress-logo-2x.png) !important;
    }
  </style>';
}
add_action('login_head','change_login_css');


function change_login_url() {
  return home_url();
}
add_filter('login_headerurl','change_login_url');

function change_login_title() {
  return get_option('blogname');
}
add_filter('login_headertitle','change_login_title');