tton/paper-icon-button.js";
import '@polymer/paper-fab/paper-fab.js';
import '../../app-scroll-effects/app-scroll-effects.js';
import '../../app-box/app-box.js';
import '../../app-toolbar/app-toolbar.js';
import '../app-header.js';
var appHeader = document.querySelector('app-header');
var appBox = document.querySelector('app-box');
var fadeBackgroundEffect = appHeader.createEffect('fade-background');
window.addEventListener('scroll', function () {
  var progress = appBox.getScrollState().progress;
  var isC