Update ExpansionPanelList Samples with Scaffold template (#30805)
diff --git a/packages/flutter/lib/src/material/expansion_panel.dart b/packages/flutter/lib/src/material/expansion_panel.dart
index 1bdb787..a509759 100644
--- a/packages/flutter/lib/src/material/expansion_panel.dart
+++ b/packages/flutter/lib/src/material/expansion_panel.dart
@@ -120,7 +120,7 @@
/// A material expansion panel list that lays out its children and animates
/// expansions.
///
-/// {@tool snippet --template=stateful_widget_material}
+/// {@tool snippet --template=stateful_widget_scaffold}
///
/// Here is a simple example of how to implement ExpansionPanelList.
///
@@ -221,7 +221,7 @@
/// arguments must not be null. The [children] objects must be instances
/// of [ExpansionPanelRadio].
///
- /// {@tool snippet --template=stateful_widget_material}
+ /// {@tool snippet --template=stateful_widget_scaffold}
///
/// Here is a simple example of how to implement ExpansionPanelList.radio.
///
