Ticket #55981: 55981.patch

wp-content/themes/twentynineteen/style.css

@@ -5680 +5680 @@
 }
 
 .entry .entry-content .wp-block-pullquote blockquote {
-  color: #111;
+  color: inherit;
   border: none;
   margin-top: calc(4 * 1rem);
   margin-bottom: calc(4.33 * 1rem);