diff --git a/src/wattsi.pas b/src/wattsi.pas
index d7643f4..542fd3f 100644
--- a/src/wattsi.pas
+++ b/src/wattsi.pas
@@ -1692,6 +1692,7 @@    TCrossReferences = record
                                               'alt', '(This is a tracking vector.)',
                                               'width', '46',
                                               'height', '64',
+                                              'class', 'darkmode-aware',
                                               'crossorigin', ''])]);
             (Node.ParentNode as TElement).ReplaceChild(TempElement, Node);
             Node.Free();