diff --git a/.gitignore b/.gitignore
index ebf7088..8445c86 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@
 .project
 .settings/
 .vscode/
+.devcontainer/
 
 # Flutter repo-specific
 /bin/cache/
diff --git a/examples/lib/common.dart b/examples/lib/common.dart
index a8ef541..f1ea130 100644
--- a/examples/lib/common.dart
+++ b/examples/lib/common.dart
@@ -110,10 +110,10 @@ class InteractiveTile extends StatefulWidget {
   final double? bottomSpace;
 
   @override
-  _InteractiveTileState createState() => _InteractiveTileState();
+  InteractiveTileState createState() => InteractiveTileState();
 }
 
-class _InteractiveTileState extends State<InteractiveTile> {
+class InteractiveTileState extends State<InteractiveTile> {
   Color color = _defaultColor;
 
   @override