change default value of fog property

docs/api/en/materials/SpriteMaterial.html

@@ -67,7 +67,7 @@
 		<p>[page:Color] of the material, by default set to white (0xffffff). The [page:.map] is mutiplied by the color.</p>
 
 		<h3>[property:boolean fog]</h3>
-		<p>Whether or not this material affected by the scene's fog. Default is false</p>
+		<p>Whether or not this material affected by the scene's fog. Default is true</p>
 
 		<h3>[property:Texture map]</h3>
 		<p>The texture map. Default is null.</p>