diff --git a/polymer-ui-icon/polymer-ui-icon.css b/polymer-ui-icon/polymer-ui-icon.css
index c0cae6a..a257af9 100644
--- a/polymer-ui-icon/polymer-ui-icon.css
+++ b/polymer-ui-icon/polymer-ui-icon.css
@@ -16,7 +16,7 @@ license that can be found in the LICENSE file.
   }
 
   .polymer-ui-light-icon, .polymer-ui-dark-theme {
-    background-position: -72px 0;
+    background-position: -24px 0;
   }
 
   .polymer-ui-icons {
diff --git a/polymer-ui-icon/polymer-ui-icon.html b/polymer-ui-icon/polymer-ui-icon.html
index 8e99673..558c690 100644
--- a/polymer-ui-icon/polymer-ui-icon.html
+++ b/polymer-ui-icon/polymer-ui-icon.html
@@ -156,6 +156,7 @@
         if (themes[theme] === undefined) {
           var offset = parseFloat(
               getComputedStyle(node).backgroundPosition.split(' ').shift());
+          console.log('calcThemeOffset', theme, offset)
           themes[theme] = offset;
         }
         return themes[theme];