Ticket #61636: 61636.patch

src/wp-content/themes/twentytwelve/style.css

@@ -830 +830 @@
 .comment-content a:visited {
         color: #9f9f9f;
 }
+
+/* Modified date block css */
+.wp-block-post-date__modified-date.has-text-color.wp-block-post-date a {
+    color: inherit;
+}
+.wp-block-post-date__modified-date.has-text-color.wp-block-post-date a:visited{
+        color: #9f9f9f;
+}
 .entry-content .more-link {
         white-space: nowrap;
 }