diff --git a/Perspex.Animation/LinearEasing.cs b/Perspex.Animation/LinearEasing.cs
index 0a20429a75..a959fe9f18 100644
--- a/Perspex.Animation/LinearEasing.cs
+++ b/Perspex.Animation/LinearEasing.cs
@@ -22,11 +22,11 @@ namespace Perspex.Animation
         /// </summary>
         /// <typeparam name="T">The type.</typeparam>
         /// <returns>An easing function.</returns>
-        public static IEasing For<T>()
+        public static IEasing<T> For<T>()
         {
             if (typeof(T) == typeof(double))
             {
-                return new LinearDoubleEasing();
+                return (IEasing<T>)new LinearDoubleEasing();
             }
             else
             {
diff --git a/Perspex.Animation/Properties/AssemblyInfo.cs b/Perspex.Animation/Properties/AssemblyInfo.cs
index 6c99227950..0d68cde482 100644
--- a/Perspex.Animation/Properties/AssemblyInfo.cs
+++ b/Perspex.Animation/Properties/AssemblyInfo.cs
@@ -1,9 +1,15 @@
-using System.Resources;
+// -----------------------------------------------------------------------
+// <copyright file="AssemblyInfo.cs" company="Steven Kirk">
+// Copyright 2015 MIT Licence. See licence.md for more information.
+// </copyright>
+// -----------------------------------------------------------------------
+
+using System.Resources;
 using System.Reflection;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
-// General Information about an assembly is controlled through the following 
+// General Information about an assembly is controlled through the following
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("Perspex.Animation")]
@@ -19,11 +25,11 @@ using System.Runtime.InteropServices;
 // Version information for an assembly consists of the following four values:
 //
 //      Major Version
-//      Minor Version 
+//      Minor Version
 //      Build Number
 //      Revision
 //
-// You can specify all the values or you can default the Build and Revision Numbers 
+// You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.0.0.0")]
diff --git a/Perspex.Application/Application.cs b/Perspex.Application/Application.cs
index 2f30f604bd..2639a17455 100644
--- a/Perspex.Application/Application.cs
+++ b/Perspex.Application/Application.cs
@@ -16,12 +16,36 @@ namespace Perspex
     using Perspex.Threading;
     using Splat;
 
+    /// <summary>
+    /// Encapsulates a Perspex application.
+    /// </summary>
+    /// <remarks>
+    /// The <see cref="Application"/> class encapsulates Perspex application-specific
+    /// functionality, including:
+    /// - A global set of <see cref="DataTemplates"/>.
+    /// - A global set of <see cref="Styles"/>.
+    /// - A <see cref="FocusManager"/>.
+    /// - An <see cref="InputManager"/>.
+    /// - Registers services needed by the rest of Perspex in the <see cref="RegisterServices"/>
+    /// method.
+    /// - Tracks the lifetime of the application.
+    /// </remarks>
     public class Application : IGlobalDataTemplates, IGlobalStyles
     {
+        /// <summary>
+        /// The application-global data templates.
+        /// </summary>
         private DataTemplates dataTemplates;
 
+        /// <summary>
+        /// The styler that will be used to apply styles to controls.
+        /// </summary>
         private Styler styler = new Styler();
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Application"/> class.
+        /// </summary>
+        /// <param name="theme">The theme to use.</param>
         public Application(Styles theme)
         {
             if (Current != null)
@@ -34,12 +58,24 @@ namespace Perspex
             this.RegisterServices();
         }
 
+        /// <summary>
+        /// Gets the current instance of the <see cref="Application"/> class.
+        /// </summary>
+        /// <value>
+        /// The current instance of the <see cref="Application"/> class.
+        /// </value>
         public static Application Current
         {
             get;
             private set;
         }
 
+        /// <summary>
+        /// Gets or sets the application's global data templates.
+        /// </summary>
+        /// <value>
+        /// The application's global data templates.
+        /// </value>
         public DataTemplates DataTemplates
         {
             get
@@ -58,24 +94,49 @@ namespace Perspex
             }
         }
 
+        /// <summary>
+        /// Gets the application's focus manager.
+        /// </summary>
+        /// <value>
+        /// The application's focus manager.
+        /// </value>
         public IFocusManager FocusManager
         {
             get;
             private set;
         }
 
+        /// <summary>
+        /// Gets the application's input manager.
+        /// </summary>
+        /// <value>
+        /// The application's input manager.
+        /// </value>
         public InputManager InputManager
         {
             get;
             private set;
         }
 
+        /// <summary>
+        /// Gets the application's global styles.
+        /// </summary>
+        /// <value>
+        /// The application's global styles.
+        /// </value>
+        /// <remarks>
+        /// Global styles apply to all windows in the application.
+        /// </remarks>
         public Styles Styles
         {
             get;
             private set;
         }
 
+        /// <summary>
+        /// Runs the application's main loop until the <see cref="ICloseable"/> is closed.
+        /// </summary>
+        /// <param name="closable">The closable to track</param>
         public void Run(ICloseable closable)
         {
             var source = new CancellationTokenSource();
@@ -83,6 +144,9 @@ namespace Perspex
             Dispatcher.UIThread.MainLoop(source.Token);
         }
 
+        /// <summary>
+        /// Register's the services needed by Perspex.
+        /// </summary>
         protected virtual void RegisterServices()
         {
             var keyboardNavigation = new KeyboardNavigation();
diff --git a/Perspex.Application/Properties/AssemblyInfo.cs b/Perspex.Application/Properties/AssemblyInfo.cs
index 04c5a6c9a2..070cf8d27b 100644
--- a/Perspex.Application/Properties/AssemblyInfo.cs
+++ b/Perspex.Application/Properties/AssemblyInfo.cs
@@ -7,7 +7,7 @@
 using System.Reflection;
 using System.Resources;
 
-// General Information about an assembly is controlled through the following 
+// General Information about an assembly is controlled through the following
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("Perspex.Application")]
@@ -23,11 +23,11 @@ using System.Resources;
 // Version information for an assembly consists of the following four values:
 //
 //      Major Version
-//      Minor Version 
+//      Minor Version
 //      Build Number
 //      Revision
 //
-// You can specify all the values or you can default the Build and Revision Numbers 
+// You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.0.0.0")]