| Index: lib/icon.js | 
| diff --git a/lib/icon.js b/lib/icon.js | 
| index a2e56a174a24d4c36fec0a658c108990bc92e8bb..c7590fce9c8f4bef26cbb7ab428a58b7ee97afed 100644 | 
| --- a/lib/icon.js | 
| +++ b/lib/icon.js | 
| @@ -19,7 +19,7 @@ | 
|  | 
| "use strict"; | 
|  | 
| -let {FilterNotifier} = require("filterNotifier"); | 
| +const {FilterNotifier} = require("filterNotifier"); | 
|  | 
| const frameOpacities =  [0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, | 
| 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, | 
| @@ -185,7 +185,7 @@ let stopIconAnimation = | 
| * @return {Promise} A promise that is fullfilled when | 
| *                   the icon animation has been stopped. | 
| */ | 
| -exports.stopIconAnimation = function() | 
| +exports.stopIconAnimation = () => | 
| { | 
| stopRequested = true; | 
| return notRunning.then(() => | 
| @@ -201,7 +201,7 @@ exports.stopIconAnimation = function() | 
| * | 
| * @param {string} type  The notification type (i.e: "information" or "critical") | 
| */ | 
| -exports.startIconAnimation = function(type) | 
| +exports.startIconAnimation = type => | 
| { | 
| notRunning = new Promise(resolve => | 
| { | 
|  |