Ticket #56008: 56008.1.patch

src/wp-content/themes/twentysixteen/css/blocks.css

@@ -172 +172 @@
         padding: 0 24px 0 0;
 }
 
+.wp-block-pullquote.has-text-color blockquote,
+.wp-block-pullquote.has-background blockquote,
+.has-background .wp-block-pullquote blockquote,
+.wp-block-pullquote.has-text-color cite {
+        color: inherit;
+}
+
 .wp-block-pullquote p {
         font-size: 19px;
         font-size: 1.1875rem;

src/wp-content/themes/twentysixteen/css/editor-blocks.css

@@ -511 +511 @@
         text-transform: none;
 }
 
+.wp-block-pullquote.has-text-color blockquote,
+.wp-block-pullquote.has-background blockquote,
+.has-background .wp-block-pullquote blockquote,
+.wp-block-pullquote.has-text-color cite {
+        color: inherit;
+}
+
 .wp-block-pullquote .wp-block-pullquote__citation:before {
         content: "\2014\00a0";
 }