Grid snaps for ZoomControl, not critical Theme corrections, new demo set

BrightSharp.Ui.Tests/TabbedMainWindow.xaml.cs

@@ -0,0 +1,43 @@
+using BrightSharp.Themes;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace BrightSharp.Ui.Tests
+{
+    /// <summary>
+    /// Interaction logic for TabbedMainWindow.xaml
+    /// </summary>
+    public partial class TabbedMainWindow : Window
+    {
+        public TabbedMainWindow()
+        {
+            InitializeComponent();
+            StyleNameTextBlock.Text = ThemeManager.Theme.ToString();
+        }
+        private void ChangeStyleButton_Click(object sender, RoutedEventArgs e)
+        {
+            if (Enum.IsDefined(typeof(ColorThemes), ThemeManager.Theme + 1))
+                ThemeManager.Theme = ThemeManager.Theme + 1;
+            else
+                ThemeManager.Theme = ColorThemes.Classic;
+            StyleNameTextBlock.Text = ThemeManager.Theme.ToString();
+        }
+        private void Calendar_Loaded(object sender, RoutedEventArgs e)
+        {
+            var cal = (Calendar)sender;
+            cal.BlackoutDates.Add(new CalendarDateRange(DateTime.Now.AddDays(-10), DateTime.Now.AddDays(-8)));
+            cal.DisplayDateStart = DateTime.Now.AddDays(-400);
+        }
+    }
+}