text: // Copyright 2018 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  'use strict';
  
  let tmpBlock = document.getElementById('tmpblock');
  // tmpBlock.onclick = function(element) {
  //     let color = element.target.value;
  //     chrome.tabs.query({active: true, currentWindow: true}, function(tabs) {
  //       chrome.tabs.executeScript(
  //           tabs[0].id,
  //           {code: 'document.body.style.backgroundColor = "' + color + '";'});
  //     });
  //   };
  