folder restructuring

lib/theming/dark_app_theme.dart

@@ -0,0 +1,13 @@
+import 'package:flutter/material.dart';
+
+class DarkAppTheme {
+  static const Color marianumRed = Color.fromARGB(255, 153, 51, 51);
+
+  static final theme = ThemeData(
+    colorScheme: ColorScheme.fromSeed(
+      seedColor: marianumRed,
+      brightness: Brightness.dark,
+    ),
+    primaryColor: marianumRed,
+  );
+}