Added themeBlockLight class to the no matches found filter message to be consistent with the other pages.

Author: itsozz

index.html

@@ -400,7 +400,7 @@ <h2>Graphics</h2>
                 filterContainer: document.getElementById('filterContainer'),    // where we want the filter input box creating
                 filterClass: 'labBorder',  // creates the focus outline on-hover
                 filterLabel: 'You can filter the items: ',
-                noMatchesClass: 'contentBlock'
+                noMatchesClass: 'contentBlock themeBlockLight'
             })
 
             // Check if we have any filter terms in the querystring