Example: Minor nit update

Author: rydmike

example/lib/core/views/universal/color_scheme_view.dart

@@ -31,7 +31,6 @@ class ColorSchemeView extends StatelessWidget {
  Widget build(BuildContext context) {
  final ThemeData theme = Theme.of(context);
  final ColorScheme colorScheme = scheme ?? theme.colorScheme;
- final bool useMaterial3 = theme.useMaterial3;
  const double spacing = 6;
 
  // Grab the card border from the theme card shape
@@ -46,12 +45,13 @@ class ColorSchemeView extends StatelessWidget {
  // If border was null, make one matching Card default, but with border
  // side, if it was not null, we leave it as it was.
  border ??= RoundedRectangleBorder(
- borderRadius: BorderRadius.all(Radius.circular(useMaterial3 ? 12 : 4)),
+ borderRadius:
+ BorderRadius.all(Radius.circular(theme.useMaterial3 ? 12 : 4)),
  side: BorderSide(color: colorScheme.outlineVariant),
  );
  }
  return Theme(
- data: Theme.of(context).copyWith(
+ data: theme.copyWith(
  cardTheme: CardTheme.of(context).copyWith(
  elevation: 0,
  shape: border,