migrated timetable integration from WebUntis to the MarianumConnect API, implementing a Dio-based client with bearer token authentication, background session validation, and auto-refresh logic.

lib/view/pages/timetable/widgets/calendar/outside_chips.dart

@@ -38,7 +38,10 @@ class _OutsideHoursStrip extends StatelessWidget {
         (maxChipsPerDay > 1 ? (maxChipsPerDay - 1) * kOutsideChipSpacing : 0);
 
     return Container(
-      color: theme.colorScheme.surfaceContainerLowest,
+      // Scaffold-Background, damit die Ganztagestermine-Leiste optisch nahtlos
+      // an Header und Stundenplan-Hintergrund anschließt; surfaceContainerLowest
+      // ist in M3-Light reinweiß und sticht gegen die getönte Seed-Surface ab.
+      color: theme.scaffoldBackgroundColor,
       padding: const EdgeInsets.symmetric(
         vertical: kOutsideStripVerticalPadding,
       ),

lib/view/pages/timetable/widgets/special_regions_builder.dart

@@ -1,15 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
 
-import '../../../../api/webuntis/queries/get_holidays/get_holidays_response.dart';
+import '../../../../api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.dart';
 import '../../../../extensions/date_time.dart';
 import '../data/calendar_layout.dart';
 import '../data/lesson_period_schedule.dart';
-import '../data/webuntis_time.dart';
 import 'time_region_tile.dart';
 
 class SpecialRegionsBuilder {
-  final GetHolidaysResponse holidays;
+  final TimetableGetHolidaysResponse holidays;
   final LessonPeriodSchedule schedule;
   final ColorScheme colorScheme;
   final Color disabledColor;
@@ -59,14 +58,22 @@ class SpecialRegionsBuilder {
   static String _dayKey(DateTime d) => '${d.year}-${d.month}-${d.day}';
 
   Iterable<TimeRegion> _buildHolidayRegions() {
-    // Multiple Webuntis holiday entries can cover the same day (e.g. a
-    // public holiday falling inside a vacation period). Collapse them
-    // per-day so we emit exactly one TimeRegion per day and the
-    // overlapping labels don't render on top of each other.
+    // Multiple holiday entries can cover the same day (e.g. a public holiday
+    // falling inside a vacation period). Collapse them per-day so we emit
+    // exactly one TimeRegion per day and the overlapping labels don't render
+    // on top of each other.
     final byDay = <String, _HolidayDay>{};
     for (final holiday in holidays.result) {
-      final startDay = WebuntisTime.parse(holiday.startDate, 0);
-      final endDay = WebuntisTime.parse(holiday.endDate, 0);
+      final startDay = DateTime(
+        holiday.startDate.year,
+        holiday.startDate.month,
+        holiday.startDate.day,
+      );
+      final endDay = DateTime(
+        holiday.endDate.year,
+        holiday.endDate.month,
+        holiday.endDate.day,
+      );
       // Webuntis treats endDate inclusively (last day of the break) — the
       // `+ 1` covers single-day public holidays (where startDate == endDate)
       // and the final day of a multi-day vacation, both of which would
@@ -76,7 +83,7 @@ class SpecialRegionsBuilder {
         final day = startDay.addDays(i);
         final key = _dayKey(day);
         byDay.putIfAbsent(key, () => _HolidayDay(day, [])).names.add(
-          holiday.name,
+          holiday.shortName,
         );
       }
     }