Fix display of theme name in Customizer

functions.php

@@ -31,6 +31,11 @@ add_action('after_switch_theme', function () {
         update_option('stylesheet', $stylesheet . '/templates');
     }
 });
+add_action('customize_render_section', function ($section) {
+    if ($section->type === 'themes') {
+        $section->title = wp_get_theme(basename(__DIR__))->display('Name');
+    }
+}, 10, 2);
 
 /**
  * Sage includes