diff --git a/README.md b/README.md
index c1afaed78..0e26e89a8 100644
--- a/README.md
+++ b/README.md
@@ -15,9 +15,9 @@ A simple SNES-like 2D game library in Go
 
 ## Features
 
-* 2D Graphics
-* Input (Mouse, Keyboard, and Gamepad)
-* Audio (Ogg/Vorbis, WAV, and PCM)
+* 2D Graphics (Geometry/Color matrix transformation, Various composition modes, Offscreen rendering)
+* Input (Mouse, Keyboard, Gamepads, Touches)
+* Audio (Ogg/Vorbis, WAV, PCM)
 
 ## Web Site
 
diff --git a/_docs/index.tmpl.html b/_docs/index.tmpl.html
index 0aab99b58..93f7c81b9 100644
--- a/_docs/index.tmpl.html
+++ b/_docs/index.tmpl.html
@@ -41,9 +41,28 @@
 
   <h2 id="features">Features</h2>
   <ul>
-    <li>2D Graphics</li>
-    <li>Input (Mouse, Keyboard, Gamepad)</li>
-    <li>Audio (Ogg/Vorbis, WAV, and PCM)</li>
+    <li>2D Graphics
+      <ul>
+        <li>Geometry/Color matrix transformation</li>
+        <li>Various composition modes</li>
+        <li>Offscreen rendering</li>
+      </ul>
+    </li>
+    <li>Input
+      <ul>
+        <li>Mouse</li>
+        <li>Keyboard</li>
+        <li>Gamepads</li>
+        <li>Touches</li>
+      </ul>
+    </li>
+    <li>Audio
+      <ul>
+        <li>Ogg/Vorbis</li>
+        <li>WAV</li>
+        <li>PCM</li>
+      </ul>
+    </li>
   </ul>
 
   <h2 id="examples">Examples</h2>
diff --git a/docs/index.html b/docs/index.html
index 3844dc8eb..ec04136c6 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -41,9 +41,28 @@
 
   <h2 id="features">Features</h2>
   <ul>
-    <li>2D Graphics</li>
-    <li>Input (Mouse, Keyboard, Gamepad)</li>
-    <li>Audio (Ogg/Vorbis, WAV, and PCM)</li>
+    <li>2D Graphics
+      <ul>
+        <li>Geometry/Color matrix transformation</li>
+        <li>Various composition modes</li>
+        <li>Offscreen rendering</li>
+      </ul>
+    </li>
+    <li>Input
+      <ul>
+        <li>Mouse</li>
+        <li>Keyboard</li>
+        <li>Gamepads</li>
+        <li>Touches</li>
+      </ul>
+    </li>
+    <li>Audio
+      <ul>
+        <li>Ogg/Vorbis</li>
+        <li>WAV</li>
+        <li>PCM</li>
+      </ul>
+    </li>
   </ul>
 
   <h2 id="examples">Examples</h2>