Add accessibility/audio/graphical descriptions to manual

Author: nicross

public/manual.html

@@ -429,6 +429,20 @@ <h3>Gamepad Controls</h3>
         </div>
       </section>
 
+      <section>
+        <h2>Accessibility</h2>
+        <p>Fishyphus is developed in accordance with WCAG (Web Content Accessibility Guidelines) 2.1 at Level AA conformance. Its menus are fully operable with a keyboard and screen readers such as NVDA.</p>
+
+        <h3>Audio Description</h3>
+        <p>Fishyphus can be played entirely without graphics.</p>
+        <p>The game opens with dark ambient music that plays on all of its screens. Once in-game a plethora of synthesized sounds give Fishyphus a retro feel. The fish sing unique melodies which drone and repeat and phase in hypnotic ways. Beneath their music is the grainy and abstract texture of wind and waves. The haptics of the fishing minigame are complemented with delightful cues. The dark ambient music from the title screens returns with more urgency as the reaper nears.</p>
+        <p>A graphics toggle has been provided in the settings screen to experience Fishyphus as an audio game.</p>
+
+        <h3>Graphical Description</h3>
+        <p>Fishyphus can be played entirely without audio.</p>
+        <p>On the screen are minimalist vector graphics from a first-person perspective. The motion of the ocean is represented by many small particles on its surface, with fish leaving trails behind as they swim. The color scheme oscillates through complementary colors, ranging from soft pastels when safe, to more deeply saturated hues as the reaper nears.</p>
+      </section>
+
       <section>
         <h2>Credits</h2>
         <p>The following typefaces belong to their respective owners:</p>