diff --git a/packages/php/email-editor/src/Engine/Templates/class-templates.php b/packages/php/email-editor/src/Engine/Templates/class-templates.php
index e10de1aa1b..5154d65001 100644
--- a/packages/php/email-editor/src/Engine/Templates/class-templates.php
+++ b/packages/php/email-editor/src/Engine/Templates/class-templates.php
@@ -187,7 +187,7 @@ class Templates {
 			self::MAILPOET_EMAIL_META_THEME_TYPE,
 			array(
 				'show_in_rest' => array(
-					'schema' => ( new Email_Styles_Schema() )->getSchema(),
+					'schema' => ( new Email_Styles_Schema() )->get_schema(),
 				),
 				'single'       => true,
 				'type'         => 'object',
@@ -204,7 +204,7 @@ class Templates {
 				'update_callback' => function ( $value, $template ) {
 					return update_post_meta( $template->wp_id, self::MAILPOET_EMAIL_META_THEME_TYPE, $value );
 				},
-				'schema'          => ( new Email_Styles_Schema() )->getSchema(),
+				'schema'          => ( new Email_Styles_Schema() )->get_schema(),
 			)
 		);
 	}
diff --git a/packages/php/email-editor/src/Engine/class-email-editor.php b/packages/php/email-editor/src/Engine/class-email-editor.php
index 7044ef915f..017744542e 100644
--- a/packages/php/email-editor/src/Engine/class-email-editor.php
+++ b/packages/php/email-editor/src/Engine/class-email-editor.php
@@ -122,7 +122,7 @@ class Email_Editor {
 	}
 
 	public function getEmailThemeDataSchema(): array {
-		return ( new Email_Styles_Schema() )->getSchema();
+		return ( new Email_Styles_Schema() )->get_schema();
 	}
 
 	public function extendEmailThemeStyles( WP_Theme_JSON $theme, WP_Post $post ): WP_Theme_JSON {
diff --git a/packages/php/email-editor/src/Engine/class-email-styles-schema.php b/packages/php/email-editor/src/Engine/class-email-styles-schema.php
index f649ae6720..6421dfac72 100644
--- a/packages/php/email-editor/src/Engine/class-email-styles-schema.php
+++ b/packages/php/email-editor/src/Engine/class-email-styles-schema.php
@@ -1,12 +1,26 @@
-<?php declare(strict_types = 1);
+<?php
+/**
+ * This file is part of the MailPoet plugin.
+ *
+ * @package MailPoet\EmailEditor
+ */
 
+declare(strict_types = 1);
 namespace MailPoet\EmailEditor\Engine;
 
 use MailPoet\EmailEditor\Validator\Builder;
 
+/**
+ * Class for email styles schema.
+ */
 class Email_Styles_Schema {
-	public function getSchema(): array {
-		$typographyProps = Builder::object(
+	/**
+	 * Returns the schema for email styles.
+	 *
+	 * @return array
+	 */
+	public function get_schema(): array {
+		$typography_props = Builder::object(
 			array(
 				'fontFamily'     => Builder::string()->nullable(),
 				'fontSize'       => Builder::string()->nullable(),
@@ -42,52 +56,52 @@ class Email_Styles_Schema {
 								'text'       => Builder::string()->nullable(),
 							)
 						)->nullable(),
-						'typography' => $typographyProps,
+						'typography' => $typography_props,
 						'elements'   => Builder::object(
 							array(
 								'heading' => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'button'  => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'link'    => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'h1'      => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'h2'      => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'h3'      => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'h4'      => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'h5'      => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 								'h6'      => Builder::object(
 									array(
-										'typography' => $typographyProps,
+										'typography' => $typography_props,
 									)
 								)->nullable(),
 							)