diff --git a/packages/shell-chrome/assets/js/advanced-search/background.js b/packages/shell-chrome/assets/js/advanced-search/background.js
index 44a63e8..062479b 100644
--- a/packages/shell-chrome/assets/js/advanced-search/background.js
+++ b/packages/shell-chrome/assets/js/advanced-search/background.js
@@ -43,186 +43,6 @@ chrome.contextMenus.create({
 
 
 
-/**
- * ****************************************************************************************
- *
- * app.js/base.js
- *
- * ****************************************************************************************
- */
-//  'use strict';
-
-const app = {};
-window.app = app;
-
-/* runtime */
-app.runtime = {
-  on(e, callback) {
-    if (e === 'start') {
-      chrome.runtime.onStartup.addListener(callback);
-      chrome.runtime.onInstalled.addListener(callback);
-    }
-  },
-  get manifest() {
-    return chrome.runtime.getManifest();
-  },
-  connect(tabId, connectInfo) {
-    let port;
-    if (typeof tabId === 'object') {
-      port = chrome.runtime.connect(tabId);
-    }
-    else {
-      port = chrome.tabs.connect(tabId, connectInfo);
-    }
-    return {
-      on(e, callback) {
-        if (e === 'message') {
-          port.onMessage.addListener(callback);
-        }
-      },
-      post(msg) {
-        port.postMessage(msg);
-      }
-    };
-  }
-};
-
-//  /* storage */
-//  app.storage = {
-//    get(prefs, type = 'managed') {
-//      return new Promise(resolve => {
-//        if (type === 'managed') {
-//          chrome.storage.managed.get(prefs, ps => {
-//            chrome.storage.local.get(chrome.runtime.lastError ? prefs : ps || prefs, resolve);
-//          });
-//        }
-//        else {
-//          chrome.storage[type].get(prefs, resolve);
-//        }
-//      });
-//    },
-//    set(prefs, type = 'managed') {
-//      return new Promise(resolve => {
-//        chrome.storage[type === 'remote' ? 'remote' : 'local'].set(prefs, resolve);
-//      });
-//    },
-//    on(e, callback) {
-//      if (e === 'changed') {
-//        chrome.storage.onChanged.addListener(callback);
-//      }
-//    }
-//  };
-
-//  /* button */
-//  app.button = {
-//    set({
-//      popup
-//    }, tabId) {
-//      if (popup !== undefined) {
-//        chrome.browserAction.setPopup({
-//          tabId,
-//          popup
-//        });
-//      }
-//    },
-//    on(e, callback) {
-//      if (e === 'clicked') {
-//        chrome.browserAction.onClicked.addListener(callback);
-//      }
-//    }
-//  };
-
-// /* tab */
-// app.tabs = {
-//   open({
-//     url
-//   }) {
-//     return new Promise(resolve => chrome.tabs.create({ url }, resolve));
-//   },
-//   current() {
-//     return new Promise(resolve => chrome.tabs.query({
-//       active: true,
-//       currentWindow: true
-//     }, (tabs = []) => resolve(tabs[0])));
-//   },
-//   inject: {
-//     js(tabId, details) {
-//       if (typeof tabId === 'object') {
-//         details = tabId;
-//         tabId = undefined;
-//       }
-//       return new Promise((resolve, reject) => {
-//         chrome.tabs.executeScript(tabId, Object.assign({
-//           runAt: 'document_start'
-//         }, details), results => {
-//           const lastError = chrome.runtime.lastError;
-//           if (lastError) {
-//             reject(lastError);
-//           }
-//           else {
-//             resolve(results);
-//           }
-//         });
-//       });
-//     },
-//     css(tabId, details) {
-//       if (typeof tabId === 'object') {
-//         details = tabId;
-//         tabId = undefined;
-//       }
-//       return new Promise((resolve, reject) => {
-//         chrome.tabs.insertCSS(tabId, Object.assign({
-//           runAt: 'document_start'
-//         }, details), results => {
-//           const lastError = chrome.runtime.lastError;
-//           if (lastError) {
-//             reject(lastError);
-//           }
-//           else {
-//             resolve(results);
-//           }
-//         });
-//       });
-//     }
-//   }
-// };
-
-//  /* window */
-//  app.windows = {
-//    open({url, left, top, width, height, type}) {
-//      width = width || 700;
-//      height = height || 500;
-//      if (left === undefined) {
-//        left = screen.availLeft + Math.round((screen.availWidth - width) / 2);
-//      }
-//      if (top === undefined) {
-//        top = screen.availTop + Math.round((screen.availHeight - height) / 2);
-//      }
-//      return new Promise(resolve => chrome.windows.create(
-//        {url, width, height, left, top, type: type || 'popup'},
-//        resolve
-//      ));
-//    }
-//  };
-
-//  /* menus */
-//  app.menus = {
-//    add(...items) {
-//      for (const item of items) {
-//        chrome.contextMenus.create(Object.assign({
-//          contexts: item.contexts || ['browser_action']
-//        }, item));
-//      }
-//    },
-//    on(e, callback) {
-//      if (e === 'clicked') {
-//        chrome.contextMenus.onClicked.addListener(callback);
-//      }
-//    }
-//  };
-
-
-
 /**
  * ****************************************************************************************
  *
@@ -1005,7 +825,12 @@ function updateDefaultSuggestion(text) {
   }
   description.push('<dim> ] </dim>');
 
-  description[2] = isPlaintext ? ('<match>' + text.trim() + '</match>') : ('<dim>' + omniboxSearchModes[0].showText + '</dim>');
+  if (text.trim().length != 0) {
+    description[2] = isPlaintext ? ('<match>' + omniboxSearchModes[0].showText + '：' + text.trim() + '</match>') : ('<dim>' + omniboxSearchModes[0].showText + '</dim>');
+  } else {
+    // 用户什么也没输入时，就高亮显示文字搜索关键字
+    description[2] = '<match>' + omniboxSearchModes[0].showText + '</match>';
+  }
 
   console.log("[更新下拉框提示开始]");
   console.log("    text：", text);
@@ -1037,44 +862,3 @@ function updateDefaultSuggestion(text) {
   //   description: description
   // });
 }
-
-
-// /**
-//  * 执行搜索
-//  * @param {*} query
-//  * @param {*} callback
-//  * @returns
-//  */
-// function search(query, callback) {
-
-//   var url = "https://code.google.com/p/chromium/codesearch#search/&type=cs&q=" + query +
-//     "&exact_package=chromium&type=cs";
-//   var req = new XMLHttpRequest();
-//   req.open("GET", url, true);
-//   req.setRequestHeader("GData-Version", "2");
-//   req.onreadystatechange = function () {
-//     if (req.readyState == 4) {
-//       callback(req.responseXML);
-//     }
-//   }
-//   req.send(null);
-//   return req;
-// }
-
-
-/**
- * ****************************************************************************************
- *
- * 测试代码及其他
- *
- * ****************************************************************************************
- */
-
-/*
-先抛砖。未来在 Chrome 中输入：Chrome 过去1年最重要的变化？ 知乎(或者zh)我们将带你进入问题页面，如果没有类似问题，就会直接提问。这个东西带来的想象力是，你可以用浏览器简单快捷的做不少事情，比如发微博，就输入「wb 知乎很给力」，京东购物，就输入「jd买 iPhone 4」。但很可能是一个相对小众的工具。
-
-作者：李申申
-链接：https://www.zhihu.com/question/19565733/answer/12236808
-来源：知乎
-著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。
- */