diff --git a/index.html b/index.html
index ee61589..9a697ed 100644
--- a/index.html
+++ b/index.html
@@ -11709,7 +11709,7 @@ <h4 id=att-high>`high`</h4>
     <tr>
       <th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
       <td>
-        <div class="general">Not mapped</div>
+        <div class="general">Expose "optimal value" via `AXValueDescription` if &lt;value&gt; is greater than or equal to &lt;high&gt;. Expose "suboptimal value" if &lt;value&gt; is less than &lt;high&gt; and greater than or equal to &lt;low&gt;.</div>
       </td>
     </tr>
     <tr>
@@ -12739,7 +12739,7 @@ <h4 id=att-low>`low`</h4>
     <tr>
       <th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
       <td>
-        <div class="general">Not mapped</div>
+        <div class="general">Expose "suboptial value" via `AXValueDescription` if &lt;value&gt; is greater than or equal to &lt;low&gt; and less than &lt;high&gt;. If &lt;value&gt; is less than &lt;low&gt;, expose "critical value".</div>
       </td>
     </tr>
     <tr>
@@ -13995,7 +13995,7 @@ <h4 id=att-optimum>`optimum`</h4>
     <tr>
       <th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
       <td>
-        <div class="general">Not mapped</div>
+        <div class="general">Expose "optimal value" via `AXValueDescription` if &lt;value&gt; is greater than or equal to &lt;optimum&gt;.</div>
       </td>
     </tr>
     <tr>