diff --git a/plugins/processor/site.mjs b/plugins/processor/site.mjs
index 638aba73..48a695b0 100644
--- a/plugins/processor/site.mjs
+++ b/plugins/processor/site.mjs
@@ -9,10 +9,16 @@ const SIDEBAR_GROUP_NAME = 'API';
 
 const getFirstAtxHeading = text => text.match(/^#\s+(.+)$/m)?.[1]?.trim();
 
-const getFirstPathSegment = url => url.replace(/^\//, '').split('/')[0];
+const getPathSegments = url => url.replace(/^\//, '').split('/');
+
+const getFirstPathSegment = url => getPathSegments(url)[0];
+
+const getPathDepth = url => getPathSegments(url).length;
 
 const defaultLabelFor = (target, url) => {
-  if (url.endsWith('/index.md')) return 'Overview';
+  if (url.endsWith('/index.md')) {
+    return getPathDepth(url) === 2 ? 'Overview' : target.name;
+  }
   if (url.endsWith('/types.md')) return 'Types';
   return target.name;
 };
diff --git a/plugins/shared/categories.mjs b/plugins/shared/categories.mjs
index 06dadc96..7af9d9b5 100644
--- a/plugins/shared/categories.mjs
+++ b/plugins/shared/categories.mjs
@@ -8,6 +8,26 @@ export const CATEGORY_RULES = [
     label: 'Optimization',
     match: reflection => /^optimize\./i.test(reflection.getFullName()),
   },
+  {
+    category: 'container',
+    label: 'Container',
+  },
+  {
+    category: 'debug',
+    label: 'Debug',
+  },
+  {
+    category: 'experiments',
+    label: 'Experiments',
+  },
+  {
+    category: 'ids',
+    label: 'IDs',
+  },
+  {
+    category: 'javascript',
+    label: 'JavaScript',
+  },
   {
     category: 'plugins',
     label: 'Plugins',