diff --git a/src/bg.js b/src/bg.js
index 6cc9bc9..43eea90 100644
--- a/src/bg.js
+++ b/src/bg.js
@@ -2,11 +2,10 @@ const kTST_ID = 'treestyletab@piro.sakura.ne.jp';
 const MY_EXTENSION_NAME = 'tab-groupcolor';
 
 var changeIcon = function(color) {
-	var getFavicon = function(){
+	var getFavicon = function() {
 		var favicon = undefined;
 		var nodeList = document.getElementsByTagName("link");
-		for (var i = 0; i < nodeList.length; i++)
-		{
+		for (var i = 0; i < nodeList.length; i++) {
 			if ((nodeList[i].getAttribute("rel") == "icon") || (nodeList[i].getAttribute("rel") == "shortcut icon")) {
 				favicon = nodeList[i].getAttribute("href");
 			}
@@ -34,7 +33,7 @@ var changeIcon = function(color) {
 };
 
 var generateRandomColor = function(seed) {
-	var selectColor = function (colorNum, colors){
+	var selectColor = function (colorNum, colors) {
 		if (colors < 1) {
 			colors = 1; // defaults to one color - avoid divide by zero
 		}