diff --git a/src/wp-includes/class-wp-theme-json.php b/src/wp-includes/class-wp-theme-json.php
index 0458a2be11b7b..2a4e6c8f609f2 100644
--- a/src/wp-includes/class-wp-theme-json.php
+++ b/src/wp-includes/class-wp-theme-json.php
@@ -1297,11 +1297,7 @@ protected static function remove_keys_not_in_schema( $tree, $schema ) {
 	 * @return array Settings per block.
 	 */
 	public function get_settings() {
-		if ( ! isset( $this->theme_json['settings'] ) ) {
-			return array();
-		} else {
-			return $this->theme_json['settings'];
-		}
+		return $this->theme_json['settings'] ?? array();
 	}
 
 	/**
@@ -1539,8 +1535,8 @@ public function get_custom_templates() {
 		foreach ( $this->theme_json['customTemplates'] as $item ) {
 			if ( isset( $item['name'] ) ) {
 				$custom_templates[ $item['name'] ] = array(
-					'title'     => isset( $item['title'] ) ? $item['title'] : '',
-					'postTypes' => isset( $item['postTypes'] ) ? $item['postTypes'] : array( 'page' ),
+					'title'     => $item['title'] ?? '',
+					'postTypes' => $item['postTypes'] ?? array( 'page' ),
 				);
 			}
 		}
@@ -1563,8 +1559,8 @@ public function get_template_parts() {
 		foreach ( $this->theme_json['templateParts'] as $item ) {
 			if ( isset( $item['name'] ) ) {
 				$template_parts[ $item['name'] ] = array(
-					'title' => isset( $item['title'] ) ? $item['title'] : '',
-					'area'  => isset( $item['area'] ) ? $item['area'] : '',
+					'title' => $item['title'] ?? '',
+					'area'  => $item['area'] ?? '',
 				);
 			}
 		}