diff --git a/osu.Game/Skinning/ISkin.cs b/osu.Game/Skinning/ISkin.cs
index 841ff3d357..cb2a379b8e 100644
--- a/osu.Game/Skinning/ISkin.cs
+++ b/osu.Game/Skinning/ISkin.cs
@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using JetBrains.Annotations;
 using osu.Framework.Audio.Sample;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
@@ -14,12 +15,36 @@ namespace osu.Game.Skinning
     /// </summary>
     public interface ISkin
     {
+        /// <summary>
+        /// Retrieve a <see cref="Drawable"/> component implementation.
+        /// </summary>
+        /// <param name="component">The requested component.</param>
+        /// <returns>A drawable representation for the requested component, or null if unavailable.</returns>
+        [CanBeNull]
         Drawable GetDrawableComponent(ISkinComponent component);
 
+        /// <summary>
+        /// Retrieve a <see cref="Texture"/>.
+        /// </summary>
+        /// <param name="componentName">The requested texture.</param>
+        /// <returns>A matching texture, or null if unavailable.</returns>
+        [CanBeNull]
         Texture GetTexture(string componentName);
 
+        /// <summary>
+        /// Retrieve a <see cref="SampleChannel"/>.
+        /// </summary>
+        /// <param name="sampleInfo">The requested sample.</param>
+        /// <returns>A matching sample channel, or null if unavailable.</returns>
+        [CanBeNull]
         SampleChannel GetSample(ISampleInfo sampleInfo);
 
+        /// <summary>
+        /// Retrieve a configuration value.
+        /// </summary>
+        /// <param name="lookup">The requested configuration value.</param>
+        /// <returns>A matching value boxed in an <see cref="IBindable{TValue}"/>, or null if unavailable.</returns>
+        [CanBeNull]
         IBindable<TValue> GetConfig<TLookup, TValue>(TLookup lookup);
     }
 }