diff --git a/lib/coder.js b/lib/coder.js
index c720659..c0e512e 100644
--- a/lib/coder.js
+++ b/lib/coder.js
@@ -1593,7 +1593,7 @@ var ICEcoder = {
 
 	// Update the settings used when we make a change to them
 	useNewSettings: function(themeURL,tabsIndent,codeAssist,lockedNav,visibleTabs,tabWidth,refreshFM) {
-		var styleNode, strCSS, cMCSS;
+		var styleNode, strCSS, cMCSS, activeLineBG;
 
 		// Add new stylesheet for selected theme
 		top.theme = themeURL.slice(themeURL.lastIndexOf("/")+1,themeURL.lastIndexOf("."));
@@ -1603,6 +1603,7 @@ var ICEcoder = {
 		styleNode.setAttribute('type', 'text/css');
 		styleNode.setAttribute('href', themeURL);
 		top.ICEcoder.content.contentWindow.document.getElementsByTagName('head')[0].appendChild(styleNode);
+		activeLineBG = top.theme=="eclipse"||top.theme=="elegant"||top.theme=="neat" ? "#ccc": "#000";
 		top.ICEcoder.switchTab(top.ICEcoder.selectedTab);
 
 		// Tabs indent setting
@@ -1621,6 +1622,7 @@ var ICEcoder = {
 		cMCSS = ICEcoder.content.contentWindow.document.styleSheets[2];
 		strCSS = cMCSS.rules ? 'rules' : 'cssRules';
 		cMCSS[strCSS][5].style['content'] = visibleTabs ? '"\\21e5"' : '" "';
+		cMCSS[strCSS][2].style.cssText = "background: " + activeLineBG + " !important";
 
 		top.tabWidth = tabWidth;
 		for (var i=0;i<ICEcoder.cMInstances.length;i++) {