diff --git a/app/pubspec.lock b/app/pubspec.lock
index bc8a5125..caad158c 100644
--- a/app/pubspec.lock
+++ b/app/pubspec.lock
@@ -464,4 +464,6 @@ packages:
     version: "0.1.2"
 sdks:
   dart: ">=2.12.0 <3.0.0"
+
   flutter: ">=1.22.0"
+
diff --git a/lib/widgets/editor.dart b/lib/widgets/editor.dart
index 5bcebf0c..e748373e 100644
--- a/lib/widgets/editor.dart
+++ b/lib/widgets/editor.dart
@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'dart:io' as io;
 import 'dart:math' as math;
+import 'dart:ui' as ui;
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';