diff --git a/js/HomeButton.js b/js/HomeButton.js
index 67a4da61..42a2119a 100644
--- a/js/HomeButton.js
+++ b/js/HomeButton.js
@@ -13,7 +13,8 @@ define( function( require ) {
   var JoistButton = require( 'JOIST/JoistButton' );
   var Property = require( 'AXON/Property' );
 
-  function HomeButton( fill, pressedFill, invertedFill, invertedPressedFill, lookAndFeel, model, options ) {
+  function HomeButton( lookAndFeel, model, options ) {
+
     var homeIcon = new FontAwesomeNode( 'home', {
       scale: 0.75
     } );
@@ -30,12 +31,11 @@ define( function( require ) {
     JoistButton.call( this, homeIcon, lookAndFeel, options );
 
     Property.multilink( [ this.interactionStateProperty, lookAndFeel.navigationBarFillProperty ], function( interactionState, navigationBarFill ) {
-      var useInvertedColors = navigationBarFill !== 'black';
-      if ( !useInvertedColors ) {
-        homeIcon.fill = interactionState === 'pressed' ? pressedFill : fill;
+      if ( navigationBarFill === 'black' ) {
+        homeIcon.fill = interactionState === 'pressed' ? 'gray' : 'white';
       }
       else {
-        homeIcon.fill = interactionState === 'pressed' ? invertedPressedFill : invertedFill;
+        homeIcon.fill = interactionState === 'pressed' ? '#444' : '#222';
       }
     } );
   }
diff --git a/js/NavigationBar.js b/js/NavigationBar.js
index 52d16400..2269426e 100644
--- a/js/NavigationBar.js
+++ b/js/NavigationBar.js
@@ -73,7 +73,7 @@ define( function( require ) {
       this.addChild( this.buttonHBox );
 
       //add the home button
-      this.homeButton = new HomeButton( 'white', 'gray', '#222', '#444', sim.lookAndFeel, sim );
+      this.homeButton = new HomeButton( sim.lookAndFeel, sim );
       this.addChild( this.homeButton );
 
       // if the branding specifies to show "adapted from PhET" in the navbar, show it here
diff --git a/js/Sim.js b/js/Sim.js
index d2e9e352..f2947b37 100644
--- a/js/Sim.js
+++ b/js/Sim.js
@@ -575,9 +575,7 @@ define( function( require ) {
       // Resize the layer with all of the dialogs, etc.
       sim.topLayer.setScaleMagnitude( scale );
 
-      if ( sim.homeScreen ) {
-        sim.homeScreen.view.layoutWithScale( scale, width, height );
-      }
+      sim.homeScreen && sim.homeScreen.view.layoutWithScale( scale, width, height );
 
       // Startup can give spurious resizes (seen on ipad), so defer to the animation loop for painting