diff --git a/assets/logos/flutter.png b/assets/logos/flutter.png
new file mode 100644
index 00000000..df6cb5cf
Binary files /dev/null and b/assets/logos/flutter.png differ
diff --git a/packages/diagram_capture/lib/diagram_capture.dart b/packages/diagram_capture/lib/diagram_capture.dart
index c91ff344..329abb42 100644
--- a/packages/diagram_capture/lib/diagram_capture.dart
+++ b/packages/diagram_capture/lib/diagram_capture.dart
@@ -341,8 +341,10 @@ typedef DiagramKeyframe = void Function(Duration duration);
 
 /// A callback given to drawAnimatedDiagramToFiles that is called for each
 /// frame.
-typedef DiagramGestureCallback =
-    void Function(DiagramController diagram, Duration now);
+typedef DiagramGestureCallback = void Function(
+  DiagramController diagram,
+  Duration now,
+);
 
 /// A controller for creating diagrams generated by using Flutter widgets.
 ///
diff --git a/packages/diagram_capture/test/diagram_capture_test.dart b/packages/diagram_capture/test/diagram_capture_test.dart
index c6edf92b..6d897c3c 100644
--- a/packages/diagram_capture/test/diagram_capture_test.dart
+++ b/packages/diagram_capture/test/diagram_capture_test.dart
@@ -128,9 +128,9 @@ void main() {
       expect(outputFile.lengthSync(), greaterThan(0));
 
       Map<String, dynamic> loadMetadata(File metadataFile) {
-        final Map<String, dynamic> metadata =
-            json.decode(metadataFile.readAsStringSync())
-                as Map<String, dynamic>;
+        final Map<String, dynamic> metadata = json.decode(
+          metadataFile.readAsStringSync(),
+        ) as Map<String, dynamic>;
         final String baseDir = path.dirname(metadataFile.absolute.path);
         final List<File> frameFiles =
             (metadata['frame_files']! as List<dynamic>)