Use the externally_connectable schema from manifest_types.json to generate its

chrome/common/extensions/docs/static/css/site.css

Index: chrome/common/extensions/docs/static/css/site.css
diff --git a/chrome/common/extensions/docs/static/css/site.css b/chrome/common/extensions/docs/static/css/site.css
index c441eb6e843d49d40a9aed5f1127647fbb6f402c..7c9443eaa75cdf775dc46ad90dde7a07427dd865 100644
--- a/chrome/common/extensions/docs/static/css/site.css
+++ b/chrome/common/extensions/docs/static/css/site.css
@@ -3,6 +3,10 @@
  * found in the LICENSE file.
  */
 
+/*
+ * Site-wide styles.
+ */
+
 .hidden {
   display: none;
 }
@@ -591,3 +595,44 @@ tabs content pre {
   margin: 0;
   padding: 10px;
 }
+
+/*
+ * API references.
+ */
+
+.type_name,
+.variable,
+.property {
+  font-style: italic;
+}
+
+.api_reference div.summary {
+  border: 1px solid #93B4D9;
+  font-family: "Courier New", courier, monospace;
+  padding: 0.5em 0.5em 0.5em 2em;
+  text-indent: -1.5em;
+  background-color: #CADEF4;
+  margin-top: 1em;

[miket_OOO, 2013/08/21 19:32:37]

CSS readability: alphabetize declarations.
http://google-styleguide.googlecode.com/svn/trunk/htmlcssguide.xml?showone=De...

[not at google - send to devlin, 2013/08/21 22:44:29]

Done.

For everything. Might as well.

+}
+
+/* This style is used because types with functions prefix the function with the
+ * type name, using a lowercase first letter. */
+.api_reference .uncapitalize:first-letter {
+  text-transform: lowercase;
+}
+
+.api_reference .capitalize:first-letter {
+  text-transform: uppercase;
+}
+
+.api_reference div.description {
+  margin-left: 2em;
+}
+
+div.summary .subdued {
+  color: #7594B8;
+}
+
+.optional {
+  color: #7D7D7D;
+}