copyWith method
Creates a copy of this theme extension with the given fields replaced by the non-null parameter values.
Implementation
@override
ThemeExtension<ScaffoldThemeExtension> copyWith({
Color? backgroundColor,
Color? foregourendColor,
}) {
return ScaffoldThemeExtension(
backgroundColor: backgroundColor ?? this.backgroundColor,
foregourendColor: foregourendColor ?? this.foregourendColor,
);
}