diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..bf7b494f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "docs/_themes"]
+	path = docs/_themes
+	url = git://github.com/mitsuhiko/flask-sphinx-themes.git
diff --git a/CHANGES b/CHANGES
index ae523e86..485902e7 100644
--- a/CHANGES
+++ b/CHANGES
@@ -15,6 +15,7 @@ Version 0.2
   view function.
 - server listens on 127.0.0.1 by default now to fix issues with chrome.
 - added external URL support.
+- added support for :func:`~flask.send_file`
 - module support and internal request handling refactoring
   to better support pluggable applications.
 
diff --git a/docs/_themes b/docs/_themes
new file mode 160000
index 00000000..11cb6b51
--- /dev/null
+++ b/docs/_themes
@@ -0,0 +1 @@
+Subproject commit 11cb6b51c9ea3bc8f94afa3d7411b617f9db2570
diff --git a/docs/_themes/flasky/static/flasky.css_t b/docs/_themes/flasky/static/flasky.css_t
deleted file mode 100644
index 04c5c5f6..00000000
--- a/docs/_themes/flasky/static/flasky.css_t
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- * flasky.css_t
- * ~~~~~~~~~~~~
- *
- * Sphinx stylesheet -- flasky theme based on nature theme.
- *
- * :copyright: Copyright 2007-2010 by the Sphinx team, see AUTHORS.
- * :license: BSD, see LICENSE for details.
- *
- */
- 
-@import url("basic.css");
- 
-/* -- page layout ----------------------------------------------------------- */
- 
-body {
-    font-family: 'Georgia', serif;
-    font-size: 17px;
-    background-color: #ddd;
-    color: #000;
-    margin: 0;
-    padding: 0;
-}
-
-div.document {
-    background: #fafafa;
-}
-
-div.documentwrapper {
-    float: left;
-    width: 100%;
-}
-
-div.bodywrapper {
-    margin: 0 0 0 230px;
-}
-
-hr {
-    border: 1px solid #B1B4B6;
-}
- 
-div.body {
-    background-color: #ffffff;
-    color: #3E4349;
-    padding: 0 30px 30px 30px;
-    min-height: 34em;
-}
-
-img.floatingflask {
-    padding: 0 0 10px 10px;
-    float: right;
-}
- 
-div.footer {
-    position: absolute;
-    right: 0;
-    margin-top: -70px;
-    text-align: right;
-    color: #888;
-    padding: 10px;
-    font-size: 14px;
-}
- 
-div.footer a {
-    color: #888;
-    text-decoration: underline;
-}
- 
-div.related {
-    line-height: 32px;
-    color: #888;
-}
-
-div.related ul {
-    padding: 0 0 0 10px;
-}
- 
-div.related a {
-    color: #444;
-}
- 
-div.sphinxsidebar {
-    font-size: 14px;
-    line-height: 1.5;
-}
-
-div.sphinxsidebarwrapper {
-    padding: 0 20px;
-}
-
-div.sphinxsidebarwrapper p.logo {
-    padding: 20px 0 10px 0;
-    margin: 0;
-    text-align: center;
-}
- 
-div.sphinxsidebar h3,
-div.sphinxsidebar h4 {
-    font-family: 'Garamond', 'Georgia', serif;
-    color: #222;
-    font-size: 24px;
-    font-weight: normal;
-    margin: 20px 0 5px 0;
-    padding: 0;
-}
-
-div.sphinxsidebar h4 {
-    font-size: 20px;
-}
- 
-div.sphinxsidebar h3 a {
-    color: #444;
-}
- 
-div.sphinxsidebar p {
-    color: #555;
-    margin: 10px 0;
-}
- 
-div.sphinxsidebar ul {
-    margin: 10px 0;
-    padding: 0;
-    color: #000;
-}
- 
-div.sphinxsidebar a {
-    color: #444;
-    text-decoration: none;
-}
-
-div.sphinxsidebar a:hover {
-    text-decoration: underline;
-}
- 
-div.sphinxsidebar input {
-    border: 1px solid #ccc;
-    font-family: 'Georgia', serif;
-    font-size: 1em;
-}
- 
-/* -- body styles ----------------------------------------------------------- */
- 
-a {
-    color: #004B6B;
-    text-decoration: underline;
-}
- 
-a:hover {
-    color: #6D4100;
-    text-decoration: underline;
-}
-
-div.body {
-    padding-bottom: 40px; /* saved for footer */
-}
- 
-div.body h1,
-div.body h2,
-div.body h3,
-div.body h4,
-div.body h5,
-div.body h6 {
-    font-family: 'Garamond', 'Georgia', serif;
-    font-weight: normal;
-    margin: 30px 0px 10px 0px;
-    padding: 0;
-}
- 
-div.body h1 { margin-top: 0; padding-top: 20px; font-size: 240%; }
-div.body h2 { font-size: 180%; }
-div.body h3 { font-size: 150%; }
-div.body h4 { font-size: 130%; }
-div.body h5 { font-size: 100%; }
-div.body h6 { font-size: 100%; }
- 
-a.headerlink {
-    color: white;
-    padding: 0 4px;
-    text-decoration: none;
-}
- 
-a.headerlink:hover {
-    color: #444;
-    background: #eaeaea;
-}
- 
-div.body p, div.body dd, div.body li {
-    line-height: 1.4em;
-}
-
-div.admonition {
-    background: #fafafa;
-    margin: 20px -30px;
-    padding: 10px 30px;
-    border-top: 1px solid #ccc;
-    border-bottom: 1px solid #ccc;
-}
-
-div.admonition p.admonition-title {
-    font-family: 'Garamond', 'Georgia', serif;
-    font-weight: normal;
-    font-size: 24px;
-    margin: 0 0 10px 0;
-    padding: 0;
-    line-height: 1;
-}
-
-div.admonition p.last {
-    margin-bottom: 0;
-}
-
-div.highlight{
-    background-color: white;
-}
-
-dt:target, .highlight {
-    background: #FAF3E8;
-}
-
-div.note {
-    background-color: #eee;
-    border: 1px solid #ccc;
-}
- 
-div.seealso {
-    background-color: #ffc;
-    border: 1px solid #ff6;
-}
- 
-div.topic {
-    background-color: #eee;
-}
- 
-div.warning {
-    background-color: #ffe4e4;
-    border: 1px solid #f66;
-}
- 
-p.admonition-title {
-    display: inline;
-}
- 
-p.admonition-title:after {
-    content: ":";
-}
-
-pre, tt {
-    font-family: 'Consolas', 'Menlo', 'Deja Vu Sans Mono', 'Bitstream Vera Sans Mono', monospace;
-    font-size: 0.9em;
-}
-
-img.screenshot {
-}
-
-tt.descname, tt.descclassname {
-    font-size: 0.95em;
-}
-
-tt.descname {
-    padding-right: 0.08em;
-}
-
-img.screenshot {
-    -moz-box-shadow: 2px 2px 4px #eee;
-    -webkit-box-shadow: 2px 2px 4px #eee;
-    box-shadow: 2px 2px 4px #eee;
-}
-
-table.docutils {
-    border: 1px solid #888;
-    -moz-box-shadow: 2px 2px 4px #eee;
-    -webkit-box-shadow: 2px 2px 4px #eee;
-    box-shadow: 2px 2px 4px #eee;
-}
-
-table.docutils td, table.docutils th {
-    border: 1px solid #888;
-    padding: 0.25em 0.7em;
-}
-
-table.field-list, table.footnote {
-    border: none;
-    -moz-box-shadow: none;
-    -webkit-box-shadow: none;
-    box-shadow: none;
-}
-
-table.footnote {
-    margin: 15px 0;
-    width: 100%;
-    border: 1px solid #eee;
-}
-
-table.field-list th {
-    padding: 0 0.8em 0 0;
-}
-
-table.field-list td {
-    padding: 0;
-}
-
-table.footnote td {
-    padding: 0.5em;
-}
-
-dl {
-    margin: 0;
-    padding: 0;
-}
-
-dl dd {
-    margin-left: 30px;
-}
- 
-pre {
-    background: #eee;
-    padding: 7px 30px;
-    margin: 15px -30px;
-    line-height: 1.3em;
-}
-
-dl pre {
-    margin-left: -60px;
-    padding-left: 60px;
-}
-
-dl dl pre {
-    margin-left: -90px;
-    padding-left: 90px;
-}
- 
-tt {
-    background-color: #ecf0f3;
-    color: #222;
-    /* padding: 1px 2px; */
-}
-
-tt.xref, a tt {
-    background-color: #FBFBFB;
-}
-
-a:hover tt {
-    background: #EEE;
-}
diff --git a/docs/_themes/flasky/theme.conf b/docs/_themes/flasky/theme.conf
deleted file mode 100644
index cb9eb465..00000000
--- a/docs/_themes/flasky/theme.conf
+++ /dev/null
@@ -1,3 +0,0 @@
-[theme]
-inherit = basic
-stylesheet = flasky.css
diff --git a/docs/api.rst b/docs/api.rst
index f322f965..e13e9524 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -222,6 +222,8 @@ Useful Functions and Classes
 
 .. autofunction:: redirect
 
+.. autofunction:: send_file
+
 .. autofunction:: escape
 
 .. autoclass:: Markup
diff --git a/docs/conf.py b/docs/conf.py
index f4756ae0..2048ab6e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -16,7 +16,7 @@ import sys, os
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.append(os.path.abspath('.'))
+sys.path.append(os.path.abspath('_themes'))
 
 # -- General configuration -----------------------------------------------------
 
@@ -79,9 +79,6 @@ exclude_patterns = ['_build']
 # output. They are ignored by default.
 #show_authors = False
 
-# The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'flaskext.FlaskyStyle'
-
 # A list of ignored prefixes for module index sorting.
 #modindex_common_prefix = []
 
@@ -90,7 +87,7 @@ pygments_style = 'flaskext.FlaskyStyle'
 
 # The theme to use for HTML and HTML Help pages.  Major themes that come with
 # Sphinx are currently 'default' and 'sphinxdoc'.
-html_theme = 'flasky'
+html_theme = 'flask'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
@@ -237,3 +234,5 @@ intersphinx_mapping = {
     'http://www.sqlalchemy.org/docs/': None,
     'http://wtforms.simplecodes.com/docs/0.5/': None
 }
+
+pygments_style = 'flask_theme_support.FlaskyStyle'
diff --git a/flask.py b/flask.py
index c5516c4f..5af32ea8 100644
--- a/flask.py
+++ b/flask.py
@@ -12,13 +12,14 @@
 from __future__ import with_statement
 import os
 import sys
+import mimetypes
 from datetime import datetime, timedelta
 
 from itertools import chain
 from jinja2 import Environment, PackageLoader, FileSystemLoader
 from werkzeug import Request as RequestBase, Response as ResponseBase, \
      LocalStack, LocalProxy, create_environ, SharedDataMiddleware, \
-     ImmutableDict, cached_property
+     ImmutableDict, cached_property, wrap_file, Headers
 from werkzeug.routing import Map, Rule
 from werkzeug.exceptions import HTTPException
 from werkzeug.contrib.securecookie import SecureCookie
@@ -268,6 +269,78 @@ def jsonify(*args, **kwargs):
         indent=None if request.is_xhr else 2), mimetype='application/json')
 
 
+def send_file(filename_or_fp, mimetype=None, as_attachment=False,
+              attachment_filename=None):
+    """Sends the contents of a file to the client.  This will use the
+    most efficient method available and configured.  By default it will
+    try to use the WSGI server's file_wrapper support.  Alternatively
+    you can set the application's :attr:`~Flask.use_x_sendfile` attribute
+    to ``True`` to directly emit an `X-Sendfile` header.  This however
+    requires support of the underlying webserver for `X-Sendfile`.
+
+    By default it will try to guess the mimetype for you, but you can
+    also explicitly provide one.  For extra security you probably want
+    to sent certain files as attachment (HTML for instance).
+
+    Please never pass filenames to this function from user sources without
+    checking them first.  Something like this is usually sufficient to
+    avoid security problems::
+
+        if '..' in filename or filename.startswith('/'):
+            abort(404)
+
+    .. versionadded:: 0.2
+
+    :param filename_or_fp: the filename of the file to send.  This is
+                           relative to the :attr:`~Flask.root_path` if a
+                           relative path is specified.
+                           Alternatively a file object might be provided
+                           in which case `X-Sendfile` might not work and
+                           fall back to the traditional method.
+    :param mimetype: the mimetype of the file if provided, otherwise
+                     auto detection happens.
+    :param as_attachment: set to `True` if you want to send this file with
+                          a ``Content-Disposition: attachment`` header.
+    :param attachment_filename: the filename for the attachment if it
+                                differs from the file's filename.
+    """
+    if isinstance(filename_or_fp, basestring):
+        filename = filename_or_fp
+        file = None
+    else:
+        file = filename_or_fp
+        filename = getattr(file, 'name', None)
+    if filename is not None:
+        filename = os.path.join(current_app.root_path, filename)
+    if mimetype is None and (filename or attachment_filename):
+        mimetype = mimetypes.guess_type(filename or attachment_filename)[0]
+    if mimetype is None:
+        mimetype = 'application/octet-stream'
+
+    headers = Headers()
+    if as_attachment:
+        if attachment_filename is None:
+            if filename is None:
+                raise TypeError('filename unavailable, required for '
+                                'sending as attachment')
+            attachment_filename = os.path.basename(filename)
+        headers.add('Content-Disposition', 'attachment',
+                    filename=attachment_filename)
+
+    if current_app.use_x_sendfile and filename:
+        if file is not None:
+            file.close()
+        headers['X-Sendfile'] = filename
+        data = None
+    else:
+        if file is None:
+            file = open(filename, 'rb')
+        data = wrap_file(request.environ, file)
+
+    return Response(data, mimetype=mimetype, headers=headers,
+                    direct_passthrough=True)
+
+
 def render_template(template_name, **context):
     """Renders a template from the template folder with the given
     context.
@@ -554,6 +627,13 @@ class Flask(_PackageBoundObject):
     #: permanent session survive for roughly one month.
     permanent_session_lifetime = timedelta(days=31)
 
+    #: Enable this if you want to use the X-Sendfile feature.  Keep in
+    #: mind that the server has to support this.  This only affects files
+    #: sent with the :func:`send_file` method.
+    #:
+    #: .. versionadded:: 0.2
+    use_x_sendfile = False
+
     #: options that are passed directly to the Jinja2 environment
     jinja_options = ImmutableDict(
         autoescape=True,
diff --git a/tests/flask_tests.py b/tests/flask_tests.py
index 1240dadd..c7cebb9c 100644
--- a/tests/flask_tests.py
+++ b/tests/flask_tests.py
@@ -17,7 +17,8 @@ import flask
 import unittest
 import tempfile
 from datetime import datetime
-from werkzeug import parse_date
+from werkzeug import parse_date, parse_options_header
+from cStringIO import StringIO
 
 
 example_path = os.path.join(os.path.dirname(__file__), '..', 'examples')
@@ -474,6 +475,87 @@ class ModuleTestCase(unittest.TestCase):
         assert app.test_client().get('/admin/').data == '42'
 
 
+class SendfileTestCase(unittest.TestCase):
+
+    def test_send_file_regular(self):
+        app = flask.Flask(__name__)
+        with app.test_request_context():
+            rv = flask.send_file('static/index.html')
+            assert rv.direct_passthrough
+            assert rv.mimetype == 'text/html'
+            with app.open_resource('static/index.html') as f:
+                assert rv.data == f.read()
+
+    def test_send_file_xsendfile(self):
+        app = flask.Flask(__name__)
+        app.use_x_sendfile = True
+        with app.test_request_context():
+            rv = flask.send_file('static/index.html')
+            assert rv.direct_passthrough
+            assert 'x-sendfile' in rv.headers
+            assert rv.headers['x-sendfile'] == \
+                os.path.join(app.root_path, 'static/index.html')
+            assert rv.mimetype == 'text/html'
+
+    def test_send_file_object(self):
+        app = flask.Flask(__name__)
+        with app.test_request_context():
+            f = open(os.path.join(app.root_path, 'static/index.html'))
+            rv = flask.send_file(f)
+            with app.open_resource('static/index.html') as f:
+                assert rv.data == f.read()
+            assert rv.mimetype == 'text/html'
+
+        app.use_x_sendfile = True
+        with app.test_request_context():
+            f = open(os.path.join(app.root_path, 'static/index.html'))
+            rv = flask.send_file(f)
+            assert rv.mimetype == 'text/html'
+            assert 'x-sendfile' in rv.headers
+            assert rv.headers['x-sendfile'] == \
+                os.path.join(app.root_path, 'static/index.html')
+
+        app.use_x_sendfile = False
+        with app.test_request_context():
+            f = StringIO('Test')
+            rv = flask.send_file(f)
+            assert rv.data == 'Test'
+            assert rv.mimetype == 'application/octet-stream'
+            f = StringIO('Test')
+            rv = flask.send_file(f, mimetype='text/plain')
+            assert rv.data == 'Test'
+            assert rv.mimetype == 'text/plain'
+
+        app.use_x_sendfile = True
+        with app.test_request_context():
+            f = StringIO('Test')
+            rv = flask.send_file(f)
+            assert 'x-sendfile' not in rv.headers
+
+    def test_attachment(self):
+        app = flask.Flask(__name__)
+        with app.test_request_context():
+            f = open(os.path.join(app.root_path, 'static/index.html'))
+            rv = flask.send_file(f, as_attachment=True)
+            value, options = parse_options_header(rv.headers['Content-Disposition'])
+            assert value == 'attachment'
+
+        with app.test_request_context():
+            assert options['filename'] == 'index.html'
+            rv = flask.send_file('static/index.html', as_attachment=True)
+            value, options = parse_options_header(rv.headers['Content-Disposition'])
+            assert value == 'attachment'
+            assert options['filename'] == 'index.html'
+
+        with app.test_request_context():
+            rv = flask.send_file(StringIO('Test'), as_attachment=True,
+                                 attachment_filename='index.txt')
+            assert rv.mimetype == 'text/plain'
+            value, options = parse_options_header(rv.headers['Content-Disposition'])
+            assert value == 'attachment'
+            assert options['filename'] == 'index.txt'
+
+
 def suite():
     from minitwit_tests import MiniTwitTestCase
     from flaskr_tests import FlaskrTestCase
@@ -481,11 +563,12 @@ def suite():
     suite.addTest(unittest.makeSuite(ContextTestCase))
     suite.addTest(unittest.makeSuite(BasicFunctionalityTestCase))
     suite.addTest(unittest.makeSuite(TemplatingTestCase))
+    suite.addTest(unittest.makeSuite(SendfileTestCase))
+    suite.addTest(unittest.makeSuite(ModuleTestCase))
     if flask.json_available:
         suite.addTest(unittest.makeSuite(JSONTestCase))
     suite.addTest(unittest.makeSuite(MiniTwitTestCase))
     suite.addTest(unittest.makeSuite(FlaskrTestCase))
-    suite.addTest(unittest.makeSuite(ModuleTestCase))
     return suite