@@ -2183,6 +2183,14 @@ function wp_update_custom_css_post( $css, $args = array() ) {
  * Since version 3.4 the TinyMCE body has .rtl CSS class.
  * It is a better option to use that class and add any RTL styles to the main stylesheet.
  *
+ * Internally this registers the 'editor-style' (singular) theme support to enable
+ * editor stylesheets for the classic/TinyMCE editor.
+ *
+ * The plural form, 'editor-styles', is a separate theme support that allows the block
+ * editor to load the stylesheets registered by this function. To add styles to the
+ * block editor, use add_theme_support( 'editor-styles' ) in addition to this function.
+ * Block themes support 'editor-styles' by default.
+ *
  * @since 3.0.0
  *
  * @global array $editor_styles
@@ -2209,6 +2217,13 @@ function add_editor_style( $stylesheet = 'editor-style.css' ) {
 /**
  * Removes all visual editor stylesheets.
  *
+ * Internally this removes the 'editor-style' (singular) theme support added by
+ * add_editor_style(). In the admin, it also clears the registered stylesheets,
+ * so they are no longer loaded in either the classic/TinyMCE or the block editor.
+ *
+ * The plural form, 'editor-styles', is a separate theme support and is not affected
+ * by this function. To remove it, use remove_theme_support( 'editor-styles' ).
+ *
  * @since 3.1.0
  *
  * @global array $editor_styles
@@ -3074,7 +3089,11 @@ function get_theme_support( $feature, ...$args ) {
  * @return bool Whether feature was removed.
  */
 function remove_theme_support( $feature ) {
-	// Do not remove internal registrations that are not used directly by themes.
+	/*
+	 * Do not remove internal registrations that are not used directly by themes.
+	 * 'editor-style' (singular) is added by add_editor_style(); use remove_editor_styles().
+	 * It is unrelated to the 'editor-styles' (plural) feature, which can be removed here.
+	 */
 	if ( in_array( $feature, array( 'editor-style', 'widgets', 'menus' ), true ) ) {
 		return false;
 	}
 
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '7.2-beta1-64692';
+$wp_version = '7.2-beta1-64693';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
Original file line number	Diff line number	Diff line change
`@@ -16,7 +16,7 @@`
`16`	`16`	`*`
`17`	`17`	`* @global string $wp_version`
`18`	`18`	`*/`
`19`		`-$wp_version = '7.2-beta1-64692';`
	`19`	`+$wp_version = '7.2-beta1-64693';`
`20`	`20`
`21`	`21`	`/**`
`22`	`22`	`* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.`