Fix bug in scroll content backgroundColor comparison with null

framer/Components/ScrollComponent.coffee

@@ -162,7 +162,7 @@ class exports.ScrollComponent extends Layer
 		# color around until you set a content layer so you can see the ScrollComponent 
 		# on your screen after creation.
 		if @content.subLayers.length
-			if @content.backgroundColor.isEqual(Framer.Defaults.Layer.backgroundColor)
+			if @content.backgroundColor?.isEqual(Framer.Defaults.Layer.backgroundColor)
 				@content.backgroundColor = null
 
 	@define "scroll",

test/tests/ScrollComponentTest.coffee

@@ -69,3 +69,11 @@ describe "ScrollComponent", ->
 			scroll = ScrollComponent.wrap(layerA)
 			scroll.width.should.equal Screen.width
 			scroll.height.should.equal Screen.height
+
+		it "should work with null backgroundColor", ->
+
+			layerA = new Layer
+			layerB = new Layer superLayer:layerA
+
+			delete layerA._properties.backgroundColor
+			scroll = ScrollComponent.wrap(layerA)