Add project files.

UI/WPF/Helpers/AnimationHelper.cs

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+using System;
+using System.Windows;
+using System.Windows.Media.Animation;
+
+namespace TheXamlGuy.UI.WPF;
+
+public class AnimationHelper
+{
+    public static ThicknessAnimation CreateAnimation(Thickness thickness = default, double milliseconds = 200)
+    {
+        return new(thickness, new Duration(TimeSpan.FromMilliseconds(milliseconds)))
+        {
+            EasingFunction = new PowerEase { EasingMode = EasingMode.EaseInOut }
+        };
+    }
+    public static DoubleAnimation CreateAnimation(double toValue, double milliseconds = 200)
+    {
+        return new(toValue, new Duration(TimeSpan.FromMilliseconds(milliseconds)))
+        {
+            EasingFunction = new PowerEase { EasingMode = EasingMode.EaseInOut }
+        };
+    }
+
+}

UI/WPF/Helpers/PropertyPathHelper.cs

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+using System.Windows;
+using System.Windows.Data;
+
+namespace TheXamlGuy.UI.WPF
+{
+    public static class PropertyPathHelper
+    {
+        private static readonly Dummy dummy = new();
+
+        public static object GetValue(object args, string path)
+        {
+            Binding binding = new(path)
+            {
+                Mode = BindingMode.OneTime,
+                Source = args
+            };
+
+            BindingOperations.SetBinding(dummy, Dummy.ValueProperty, binding);
+            return dummy.GetValue(Dummy.ValueProperty);
+        }
+
+        private class Dummy : DependencyObject
+        {
+            public static readonly DependencyProperty ValueProperty =
+                DependencyProperty.Register("Value", typeof(object), typeof(Dummy), 
+                    new UIPropertyMetadata(null));
+        }
+    }
+}