Add helpful message about how to use localizationsDelegates list (#46250)
diff --git a/dev/tools/localization/gen_l10n.dart b/dev/tools/localization/gen_l10n.dart
index d5202e9..972e981 100644
--- a/dev/tools/localization/gen_l10n.dart
+++ b/dev/tools/localization/gen_l10n.dart
@@ -94,6 +94,10 @@
/// Returns a list of localizations delegates containing this delegate along with
/// GlobalMaterialLocalizations.delegate, GlobalCupertinoLocalizations.delegate,
/// and GlobalWidgetsLocalizations.delegate.
+ ///
+ /// Additional delegates can be added by appending to this list in
+ /// MaterialApp. This list does not have to be used at all if a custom list
+ /// of delegates is preferred or required.
static const List<LocalizationsDelegate<dynamic>> localizationsDelegates = <LocalizationsDelegate<dynamic>>[
delegate,
GlobalMaterialLocalizations.delegate,
