Ticket #39109: 39109.patch

wp-content/themes/twentyseventeen/functions.php

@@ -103 +103 @@
          */
         add_editor_style( array( 'assets/css/editor-style.css', twentyseventeen_fonts_url() ) );
 
-        add_theme_support( 'starter-content', array(
+        $starter_content = array(
                 'widgets' => array(
                         'sidebar-1' => array(
                                 'text_business_info',
@@ -186 +186 @@
                                 ),
                         ),
                 ),
-        ) );
+        );
+
+        add_theme_support( 'starter-content', apply_filters( 'twentyseventeen_starter_content', $starter_content ) );
 }
 add_action( 'after_setup_theme', 'twentyseventeen_setup' );