diff --git a/gitiles-dev/src/main/java/com/google/gitiles/dev/DevServer.java b/gitiles-dev/src/main/java/com/google/gitiles/dev/DevServer.java
index c32cd8e..5b0f5e8 100644
--- a/gitiles-dev/src/main/java/com/google/gitiles/dev/DevServer.java
+++ b/gitiles-dev/src/main/java/com/google/gitiles/dev/DevServer.java
@@ -47,6 +47,7 @@
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.UnknownHostException;
+import java.util.Arrays;
 
 class DevServer {
   private static final Logger log = LoggerFactory.getLogger(PathServlet.class);
@@ -187,7 +188,7 @@
         cfg,
         new DebugRenderer(
             STATIC_PREFIX,
-            cfg.getString("gitiles", null, "customTemplates"),
+            Arrays.asList(cfg.getStringList("gitiles", null, "customTemplates")),
             new File(sourceRoot, "gitiles-servlet/src/main/resources/com/google/gitiles/templates")
                 .getPath(),
             Objects.firstNonNull(cfg.getString("gitiles", null, "siteTitle"), "Gitiles")),
diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java b/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java
index ba0ee5c..76d9f96 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/BaseServlet.java
@@ -194,6 +194,12 @@
       setCacheHeaders(res);
 
       Map<String, Object> allData = getData(req);
+
+      String headerVariant = getAccess(req).getConfig().getString("template", null, "customHeader");
+      if (headerVariant != null) {
+        allData.put("headerVariant", headerVariant);
+      }
+
       allData.putAll(soyData);
       GitilesView view = ViewFilter.getView(req);
       if (!allData.containsKey("repositoryName") && view.getRepositoryName() != null) {
diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/DebugRenderer.java b/gitiles-servlet/src/main/java/com/google/gitiles/DebugRenderer.java
index 366191a..9638fd8 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/DebugRenderer.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/DebugRenderer.java
@@ -16,7 +16,7 @@
 
 import static com.google.common.base.Preconditions.checkState;
 
-import com.google.common.base.Function;
+import com.google.common.collect.FluentIterable;
 import com.google.common.collect.ImmutableMap;
 import com.google.template.soy.SoyFileSet;
 import com.google.template.soy.tofu.SoyTofu;
@@ -27,17 +27,13 @@
 
 /** Renderer that reloads Soy templates from the filesystem on every request. */
 public class DebugRenderer extends Renderer {
-  public DebugRenderer(String staticPrefix, String customTemplatesFilename,
+  public DebugRenderer(String staticPrefix, Iterable<String> customTemplatesFilenames,
       final String soyTemplatesRoot, String siteTitle) {
     super(
-        new Function<String, URL>() {
-          @Override
-          public URL apply(String name) {
-            return toFileURL(soyTemplatesRoot + File.separator + name);
-          }
-        },
+        new FileUrlMapper(soyTemplatesRoot + File.separator),
         ImmutableMap.<String, String> of(), staticPrefix,
-        toFileURL(customTemplatesFilename), siteTitle);
+        FluentIterable.from(customTemplatesFilenames).transform(new FileUrlMapper()),
+        siteTitle);
   }
 
   @Override
diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java b/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java
index e2eef7c..0741fc2 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java
@@ -31,12 +31,12 @@
     this("", null, "");
   }
 
-  public DefaultRenderer(String staticPrefix, URL customTemplates, String siteTitle) {
+  public DefaultRenderer(String staticPrefix, Iterable<URL> customTemplates, String siteTitle) {
     this(ImmutableMap.<String, String> of(), staticPrefix, customTemplates, siteTitle);
   }
 
-  public DefaultRenderer(Map<String, String> globals, String staticPrefix, URL customTemplates,
-      String siteTitle) {
+  public DefaultRenderer(Map<String, String> globals, String staticPrefix,
+      Iterable<URL> customTemplates, String siteTitle) {
     super(
         new Function<String, URL>() {
           @Override
diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/GitilesFilter.java b/gitiles-servlet/src/main/java/com/google/gitiles/GitilesFilter.java
index e8b161d..b878415 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/GitilesFilter.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/GitilesFilter.java
@@ -21,10 +21,12 @@
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Objects;
+import com.google.common.collect.FluentIterable;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.LinkedListMultimap;
 import com.google.common.collect.ListMultimap;
 import com.google.common.collect.Maps;
+import com.google.gitiles.Renderer.FileUrlMapper;
 
 import org.eclipse.jgit.errors.ConfigInvalidException;
 import org.eclipse.jgit.errors.RepositoryNotFoundException;
@@ -42,6 +44,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.net.UnknownHostException;
+import java.util.Arrays;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.regex.Pattern;
@@ -322,7 +325,9 @@
     if (renderer == null) {
       renderer = new DefaultRenderer(
           filterConfig.getServletContext().getContextPath() + STATIC_PREFIX,
-          Renderer.toFileURL(config.getString("gitiles", null, "customTemplates")),
+          FluentIterable.from(Arrays.asList(
+                config.getStringList("gitiles", null, "customTemplates")))
+              .transform(new FileUrlMapper()),
           Objects.firstNonNull(config.getString("gitiles", null, "siteTitle"), "Gitiles"));
     }
   }
diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/Renderer.java b/gitiles-servlet/src/main/java/com/google/gitiles/Renderer.java
index 1ab26c4..643c389 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/Renderer.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/Renderer.java
@@ -18,9 +18,10 @@
 
 import com.google.common.base.Charsets;
 import com.google.common.base.Function;
+import com.google.common.collect.FluentIterable;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.Lists;
+import com.google.common.collect.Iterables;
 import com.google.common.collect.Maps;
 import com.google.template.soy.tofu.SoyTofu;
 
@@ -52,14 +53,27 @@
       "gitiles.PRETTIFY_CSS_URL", "prettify/prettify.css",
       "gitiles.PRETTIFY_JS_URL", "prettify/prettify.js");
 
-  protected static final URL toFileURL(String filename) {
-    if (filename == null) {
-      return null;
+  protected static class FileUrlMapper implements Function<String, URL> {
+    private final String prefix;
+
+    protected FileUrlMapper() {
+      this("");
     }
-    try {
-      return new File(filename).toURI().toURL();
-    } catch (MalformedURLException e) {
-      throw new IllegalArgumentException(e);
+
+    protected FileUrlMapper(String prefix) {
+      this.prefix = checkNotNull(prefix, "prefix");
+    }
+
+    @Override
+    public URL apply(String filename) {
+      if (filename == null) {
+        return null;
+      }
+      try {
+        return new File(prefix + filename).toURI().toURL();
+      } catch (MalformedURLException e) {
+        throw new IllegalArgumentException(e);
+      }
     }
   }
 
@@ -67,18 +81,10 @@
   protected ImmutableMap<String, String> globals;
 
   protected Renderer(Function<String, URL> resourceMapper, Map<String, String> globals,
-      String staticPrefix, URL customTemplates, String siteTitle) {
+      String staticPrefix, Iterable<URL> customTemplates, String siteTitle) {
     checkNotNull(staticPrefix, "staticPrefix");
-    List<URL> allTemplates = Lists.newArrayListWithCapacity(SOY_FILENAMES.size() + 1);
-    for (String filename : SOY_FILENAMES) {
-      allTemplates.add(resourceMapper.apply(filename));
-    }
-    if (customTemplates != null) {
-      allTemplates.add(customTemplates);
-    } else {
-      allTemplates.add(resourceMapper.apply("DefaultCustomTemplates.soy"));
-    }
-    templates = ImmutableList.copyOf(allTemplates);
+    Iterable<URL> allTemplates = FluentIterable.from(SOY_FILENAMES).transform(resourceMapper);
+    templates = ImmutableList.copyOf(Iterables.concat(allTemplates, customTemplates));
 
     Map<String, String> allGlobals = Maps.newHashMap();
     for (Map.Entry<String, String> e : STATIC_URL_GLOBALS.entrySet()) {
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/BlameDetail.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/BlameDetail.soy
index f64368e..8ecfcce 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/BlameDetail.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/BlameDetail.soy
@@ -19,6 +19,7 @@
  * @param title human-readable revision name.
  * @param repositoryName name of this repository.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs breadcrumbs for this page.
  * @param data blob data, matching the params for .blobBox.
  * @param? regions for non-binary files, list of blame regions with the
@@ -37,6 +38,7 @@
     {param title: $title /}
     {param repositoryName: $repositoryName /}
     {param menuEntries: $menuEntries /}
+    {param headerVariant: $headerVariant /}
     {param breadcrumbs: $breadcrumbs /}
     {param css: [gitiles.PRETTIFY_CSS_URL] /}
     {param js: [gitiles.PRETTIFY_JS_URL] /}
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy
index 06db9a3..4cfd648 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/Common.soy
@@ -21,6 +21,7 @@
  * @param? repositoryName repository name for this page, if applicable.
  * @param? menuEntries optional list of menu entries with "text" and optional
  *     "url" keys.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs navigation breadcrumbs for this page.
  * @param? css optional list of CSS URLs to include.
  * @param? js optional list of Javascript URLs to include.
@@ -56,7 +57,7 @@
   {/if}
 </head>
 <body {if $onLoad}onload="{$onLoad|id}"{/if}>
-  {call .customHeader /}
+  {delcall gitiles.customHeader variant="$headerVariant ?: 'default'" /}
 
   {if $menuEntries and length($menuEntries)}
     <div class="menu">
@@ -87,6 +88,13 @@
 {/template}
 
 /**
+ * Default custom header implementation for Gitiles.
+ */
+{deltemplate gitiles.customHeader variant="'default'"}
+<h1>{msg desc="short name of the application"}{gitiles.SITE_TITLE}{/msg}</h1>
+{/deltemplate}
+
+/**
  * Standard footer.
  */
 {template .footer}
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/DefaultCustomTemplates.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/DefaultCustomTemplates.soy
deleted file mode 100644
index b952d3c..0000000
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/DefaultCustomTemplates.soy
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2012 Google Inc. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-{namespace gitiles autoescape="contextual"}
-
-/**
- * Default custom header implementation for Gitiles.
- */
-{template .customHeader}
-<h1>{msg desc="short name of the application"}{gitiles.SITE_TITLE}{/msg}</h1>
-{/template}
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/DiffDetail.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/DiffDetail.soy
index dfd8af2..d888d0a 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/DiffDetail.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/DiffDetail.soy
@@ -19,6 +19,7 @@
  * @param title human-readable revision name.
  * @param repositoryName name of this repository.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs breadcrumbs for this page.
  * @param? commit optional commit for which diffs are displayed, with keys
  *     corresponding to the gitiles.commitDetail template (minus "diffTree").
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/HostIndex.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/HostIndex.soy
index cf3e726..07da395 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/HostIndex.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/HostIndex.soy
@@ -18,6 +18,7 @@
  *
  * @param hostName host name.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param baseUrl base URL for repositories.
  * @param repositories list of repository description maps with name, cloneUrl,
  *     and optional description values.
@@ -27,6 +28,7 @@
   {param title: $hostName ? $hostName + ' Git repositories' : 'Git repositories' /}
   {param menuEntries: $menuEntries /}
   {param breadcrumbs: null /}
+  {param headerVariant: $headerVariant /}
 {/call}
 
 {if length($repositories)}
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy
index fd08196..3d5531e 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/LogDetail.soy
@@ -19,6 +19,7 @@
  * @param title human-readable revision name.
  * @param repositoryName name of this repository.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs breadcrumbs for this page.
  * @param? tags optional list of tags encountered when peeling this object, with
  *     keys corresponding to gitiles.tagDetail.
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/PathDetail.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/PathDetail.soy
index d954268..ccbffdd 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/PathDetail.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/PathDetail.soy
@@ -19,6 +19,7 @@
  * @param title human-readable name of this path.
  * @param repositoryName name of this repository.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs breadcrumbs for this page.
  * @param type path type, matching one of the constant names defined in
  *         org.eclipse.jgit.lib.FileMode.
@@ -31,6 +32,7 @@
     {param title: $title /}
     {param repositoryName: $repositoryName /}
     {param menuEntries: $menuEntries /}
+    {param headerVariant: $headerVariant /}
     {param breadcrumbs: $breadcrumbs /}
     {param css: [gitiles.PRETTIFY_CSS_URL] /}
     {param js: [gitiles.PRETTIFY_JS_URL] /}
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RefList.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RefList.soy
index d13dd6d..e960b54 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RefList.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RefList.soy
@@ -19,6 +19,7 @@
  *
  * @param repositoryName name of this repository.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs breadcrumbs for this page.
  * @param branches list of branch objects with url, name, and isHead keys.
  * @param tags list of tag objects with url and name keys.
@@ -28,6 +29,7 @@
   {param title: 'Refs' /}
   {param repositoryName: $repositoryName /}
   {param menuEntries: $menuEntries /}
+  {param headerVariant: $headerVariant /}
   {param breadcrumbs: $breadcrumbs /}
 {/call}
 
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RepositoryIndex.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RepositoryIndex.soy
index 13cadfd..14d5335 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RepositoryIndex.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RepositoryIndex.soy
@@ -18,6 +18,7 @@
  *
  * @param repositoryName name of this repository.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs breadcrumbs for this page.
  * @param cloneUrl clone URL for this repository.
  * @param description description text of the repository.
@@ -35,6 +36,7 @@
   {param title: $repositoryName /}
   {param repositoryName: null /}
   {param menuEntries: $menuEntries /}
+  {param headerVariant: $headerVariant /}
   {param breadcrumbs: $breadcrumbs /}
 {/call}
 
diff --git a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RevisionDetail.soy b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RevisionDetail.soy
index 1abed6b..a756b88 100644
--- a/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RevisionDetail.soy
+++ b/gitiles-servlet/src/main/resources/com/google/gitiles/templates/RevisionDetail.soy
@@ -19,6 +19,7 @@
  * @param title human-readable revision name.
  * @param repositoryName name of this repository.
  * @param? menuEntries menu entries.
+ * @param? headerVariant variant name for custom header.
  * @param breadcrumbs breadcrumbs for this page.
  * @param? hasBlob set to true if the revision or its peeled value is a blob.
  * @param objects list of objects encountered when peeling this object. Each
@@ -33,6 +34,7 @@
     {param title: $title /}
     {param repositoryName: $repositoryName /}
     {param menuEntries: $menuEntries /}
+    {param headerVariant: $headerVariant /}
     {param breadcrumbs: $breadcrumbs /}
     {param css: [gitiles.PRETTIFY_CSS_URL] /}
     {param js: [gitiles.PRETTIFY_JS_URL] /}