Index: wp-content/themes/twentynineteen/style-editor.scss
===================================================================
--- wp-content/themes/twentynineteen/style-editor.scss	(revision 55900)
+++ wp-content/themes/twentynineteen/style-editor.scss	(working copy)
@@ -102,10 +102,6 @@
 	color: $color__text-main;
 }
 
-p {
-	font-size: $font__size_base;
-}
-
 h1,
 h2,
 h3,
@@ -173,17 +169,6 @@
 .has-dark-gray-background-color,
 .has-light-gray-background-color {
 	color: $color__background-body;
-
-	p,
-	h1,
-	h2,
-	h3,
-	h4,
-	h5,
-	h6,
-	a {
-		color: $color__background-body;
-	}
 }
 
 // Use dark gray text against this background by default.