Ensure links inherit custom text color.

dyad-2/css/editor-blocks.css

@@ -112,8 +112,8 @@ a {
 	color: #6a6c6e;
 }
 
-.has-background a,
-.has-background-dim a {
+.has-background.not(.has-text-color) a,
+.has-background-dim.not(.has-text-color) a {
 	color: #ffffff;
 }