diff --git a/sphinx/source/conf.py b/sphinx/source/conf.py
index 487c60e..a466c5c 100644
--- a/sphinx/source/conf.py
+++ b/sphinx/source/conf.py
@@ -58,9 +58,11 @@ exclude_patterns = []
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
+html_theme = "wtf_coop"
+html_theme_path = ["../theme"]
+#html_theme = 'alabaster'
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+#html_static_path = ['_static']
diff --git a/sphinx/theme/wtf_coop/layout.html b/sphinx/theme/wtf_coop/layout.html
new file mode 100644
index 0000000..8b86b0a
--- /dev/null
+++ b/sphinx/theme/wtf_coop/layout.html
@@ -0,0 +1,79 @@
+{#
+    sphinxdoc/layout.html
+    ~~~~~~~~~~~~~~~~~~~~~
+
+    Sphinx layout template for the wtf coop ci theme.
+
+    :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+#}
+{%- extends "basic/layout.html" %}
+
+{# put the sidebar before the body #}
+{% block sidebar1 %}{{ sidebar() }}{% endblock %}
+{% block sidebar2 %}{% endblock %}
+
+{% block extrahead %}
+    <link href='https://fonts.googleapis.com/css?family=Open+Sans:300,400,700'
+          rel='stylesheet' type='text/css' />
+{{ super() }}
+{%- if not embedded %}
+    <style type="text/css">
+      table.right { float: right; margin-left: 20px; }
+      table.right td { border: 1px solid #ccc; }
+      {% if pagename == 'index' %}
+      .related { display: none; }
+      {% endif %}
+    </style>
+    <script>
+      // intelligent scrolling of the sidebar content
+      $(window).scroll(function() {
+        var sb = $('.sphinxsidebarwrapper');
+        var win = $(window);
+        var sbh = sb.height();
+        var offset = $('.sphinxsidebar').position()['top'];
+        var wintop = win.scrollTop();
+        var winbot = wintop + win.innerHeight();
+        var curtop = sb.position()['top'];
+        var curbot = curtop + sbh;
+        // does sidebar fit in window?
+        if (sbh < win.innerHeight()) {
+          // yes: easy case -- always keep at the top
+          sb.css('top', $u.min([$u.max([0, wintop - offset - 10]),
+                                $(document).height() - sbh - 200]));
+        } else {
+          // no: only scroll if top/bottom edge of sidebar is at
+          // top/bottom edge of window
+          if (curtop > wintop && curbot > winbot) {
+            sb.css('top', $u.max([wintop - offset - 10, 0]));
+          } else if (curtop < wintop && curbot < winbot) {
+            sb.css('top', $u.min([winbot - sbh - offset - 20,
+                                  $(document).height() - sbh - 200]));
+          }
+        }
+      });
+    </script>
+{%- endif %}
+{% endblock %}
+
+{% block rootrellink %}
+        <li><a href="{{ pathto('index') }}">Sphinx home</a>&#160;|</li>
+        <li><a href="{{ pathto('contents') }}">Documentation</a> &#187;</li>
+{% endblock %}
+
+{% block header %}
+<div class="pageheader">
+  <ul>
+    <li><a href="{{ pathto('index') }}">Home</a></li>
+    <li><a href="{{ pathto('usage/installation') }}">Get it</a></li>
+    <li><a href="{{ pathto('contents') }}">Docs</a></li>
+    <li><a href="{{ pathto('development/index') }}">Extend</a></li>
+  </ul>
+  <div>
+    <a href="{{ pathto('index') }}">
+      <img src="{{ pathto('_static/wtf_coop_header.png', 1) }}"
+    alt="WTF eG Logo" />
+    </a>
+  </div>
+</div>
+{% endblock %}
diff --git a/sphinx/theme/wtf_coop/static/bodybg.png b/sphinx/theme/wtf_coop/static/bodybg.png
new file mode 100644
index 0000000..6f667b9
Binary files /dev/null and b/sphinx/theme/wtf_coop/static/bodybg.png differ
diff --git a/sphinx/theme/wtf_coop/static/footerbg.png b/sphinx/theme/wtf_coop/static/footerbg.png
new file mode 100644
index 0000000..d1bcb00
Binary files /dev/null and b/sphinx/theme/wtf_coop/static/footerbg.png differ
diff --git a/sphinx/theme/wtf_coop/static/headerbg.png b/sphinx/theme/wtf_coop/static/headerbg.png
new file mode 100644
index 0000000..5225049
Binary files /dev/null and b/sphinx/theme/wtf_coop/static/headerbg.png differ
diff --git a/sphinx/theme/wtf_coop/static/listitem.png b/sphinx/theme/wtf_coop/static/listitem.png
new file mode 100644
index 0000000..f7f814d
Binary files /dev/null and b/sphinx/theme/wtf_coop/static/listitem.png differ
diff --git a/sphinx/theme/wtf_coop/static/relbg.png b/sphinx/theme/wtf_coop/static/relbg.png
new file mode 100644
index 0000000..68a9b77
Binary files /dev/null and b/sphinx/theme/wtf_coop/static/relbg.png differ
diff --git a/sphinx/theme/wtf_coop/static/wtf_coop.css b/sphinx/theme/wtf_coop/static/wtf_coop.css
new file mode 100644
index 0000000..c8fb2e5
--- /dev/null
+++ b/sphinx/theme/wtf_coop/static/wtf_coop.css
@@ -0,0 +1,443 @@
+/*
+ * sphinx13.css
+ * ~~~~~~~~~~~~
+ *
+ * Sphinx stylesheet -- sphinx13 theme.
+ *
+ * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+@import url("basic.css");
+
+/* -- page layout ----------------------------------------------------------- */
+
+body {
+    font-family: 'Open Sans', 'Lucida Grande', 'Lucida Sans Unicode', 'Geneva',
+                 'Verdana', sans-serif;
+    font-size: 14px;
+    text-align: center;
+    background-image: url(bodybg.png);
+    color: black;
+    padding: 0;
+    border-right: 1px solid #0a507a;
+    border-left: 1px solid #0a507a;
+
+    margin: 0 auto;
+    min-width: 780px;
+    max-width: 1080px;
+}
+
+.pageheader {
+    background-image: url(headerbg.png);
+    text-align: left;
+    padding: 10px 15px;
+}
+
+.pageheader ul {
+    float: right;
+    color: white;
+    list-style-type: none;
+    padding-left: 0;
+    margin-top: 30px;
+    margin-right: 10px;
+}
+
+.pageheader li {
+    float: left;
+    margin: 0 0 0 10px;
+}
+
+.pageheader li a {
+    border-radius: 1px;
+    padding: 8px 12px;
+    color: #f9f9f0;
+    text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
+}
+
+.pageheader li a:hover {
+    background-color: #f9f9f0;
+    color: #0a507a;
+    text-shadow: none;
+}
+
+div.document {
+    background-color: white;
+    text-align: left;
+}
+
+div.bodywrapper {
+    margin: 0 240px 0 0;
+    border-right: 1px solid #0a507a;
+}
+
+div.body {
+    margin: 0;
+    padding: 0.5em 20px 20px 20px;
+}
+
+div.related {
+    font-size: 1em;
+    color: white;
+}
+
+div.related ul {
+    background-image: url(relbg.png);
+    height: 1.9em;
+    border-top: 1px solid #002e50;
+    border-bottom: 1px solid #002e50;
+}
+
+div.related ul li {
+    margin: 0 5px 0 0;
+    padding: 0;
+    float: left;
+}
+
+div.related ul li.right {
+    float: right;
+    margin-right: 5px;
+}
+
+div.related ul li a {
+    margin: 0;
+    padding: 0 5px 0 5px;
+    line-height: 1.75em;
+    color: #f9f9f0;
+    text-shadow: 0px 0px 1px rgba(0, 0, 0, 0.5);
+}
+
+div.related ul li a:hover {
+    color: white;
+    /*text-decoration: underline;*/
+    text-shadow: 0px 0px 1px rgba(255, 255, 255, 0.5);
+}
+
+div.sphinxsidebarwrapper {
+    position: relative;
+    top: 0px;
+    padding: 0;
+}
+
+div.sphinxsidebar {
+    margin: 0;
+    padding: 0 15px 15px 0;
+    width: 210px;
+    float: right;
+    font-size: 1em;
+    text-align: left;
+    max-height: 0px;
+}
+
+div.sphinxsidebar .logo {
+    font-size: 1.8em;
+    color: #0A507A;
+    font-weight: 300;
+    text-align: center;
+}
+
+div.sphinxsidebar .logo img {
+    vertical-align: middle;
+}
+
+div.sphinxsidebar .download a img {
+    vertical-align: middle;
+}
+
+div.subscribeformwrapper {
+    display: block;
+    overflow: auto;
+    margin-bottom: 1.2em;
+}
+
+div.sphinxsidebar input {
+    border: 1px solid #aaa;
+    font-family: 'Open Sans', 'Lucida Grande', 'Lucida Sans Unicode', 'Geneva',
+                 'Verdana', sans-serif;
+}
+
+div.sphinxsidebar .subscribeform {
+    margin-top: 0;
+}
+
+div.sphinxsidebar .subscribeform input {
+    border: 1px solid #aaa;
+    font-size: 0.9em;
+    float: left;
+    padding: 0.25em 0.5em;
+    box-sizing: border-box;
+}
+
+div.sphinxsidebar .subscribeform input[type="text"] {
+    width: 60%;
+}
+
+div.sphinxsidebar .subscribeform input[type="submit"] {
+    width: 40%;
+    border-left: none;
+}
+
+div.sphinxsidebar h3 {
+    font-size: 1.5em;
+    border-top: 1px solid #0a507a;
+    margin-top: 1em;
+    margin-bottom: 0.5em;
+    padding-top: 0.5em;
+}
+
+div.sphinxsidebar h4 {
+    font-size: 1.2em;
+    margin-bottom: 0;
+}
+
+div.sphinxsidebar h3, div.sphinxsidebar h4 {
+    margin-right: -15px;
+    margin-left: -15px;
+    padding-right: 14px;
+    padding-left: 14px;
+    color: #333;
+    font-weight: 300;
+    /*text-shadow: 0px 0px 0.5px rgba(0, 0, 0, 0.4);*/
+}
+
+div.sphinxsidebarwrapper > h3:first-child {
+    margin-top: 0.5em;
+    border: none;
+}
+
+div.sphinxsidebar h3 a {
+    color: #333;
+}
+
+div.sphinxsidebar ul {
+    color: #444;
+    margin-top: 7px;
+    padding: 0;
+    line-height: 130%;
+}
+
+div.sphinxsidebar ul ul {
+    margin-left: 20px;
+    list-style-image: url(listitem.png);
+}
+
+div.footer {
+    background-image: url(footerbg.png);
+    color: #ccc;
+    text-shadow: 0 0 .2px rgba(255, 255, 255, 0.8);
+    padding: 3px 8px 3px 0;
+    clear: both;
+    font-size: 0.8em;
+    text-align: right;
+}
+
+/* no need to make a visible link to Sphinx on the Sphinx page */
+div.footer a {
+    color: #ccc;
+}
+
+/* -- body styles ----------------------------------------------------------- */
+
+p {
+    margin: 0.8em 0 0.5em 0;
+}
+
+a {
+    color: #A2881D;
+    text-decoration: none;
+}
+
+a:hover {
+    color: #E1C13F;
+}
+
+div.body a {
+    text-decoration: underline;
+}
+
+h1 {
+    margin: 10px 0 0 0;
+    font-size: 2.4em;
+    color: #0A507A;
+    font-weight: 300;
+}
+
+h2 {
+    margin: 1.em 0 0.2em 0;
+    font-size: 1.5em;
+    font-weight: 300;
+    padding: 0;
+    color: #174967;
+}
+
+h3 {
+    margin: 1em 0 -0.3em 0;
+    font-size: 1.3em;
+    font-weight: 300;
+}
+
+div.body h1 a, div.body h2 a, div.body h3 a, div.body h4 a, div.body h5 a, div.body h6 a {
+    text-decoration: none;
+}
+
+div.body h1 a tt, div.body h2 a tt, div.body h3 a tt, div.body h4 a tt, div.body h5 a tt, div.body h6 a tt {
+    color: #0A507A !important;
+    font-size: inherit !important;
+}
+
+a.headerlink {
+    color: #0A507A !important;
+    font-size: 12px;
+    margin-left: 6px;
+    padding: 0 4px 0 4px;
+    text-decoration: none !important;
+    float: right;
+}
+
+a.headerlink:hover {
+    background-color: #ccc;
+    color: white!important;
+}
+
+/* avoid font-size when :mod: role in headings */
+h1 code, h2 code, h3 code, h4 code {
+    font-size: inherit;
+}
+
+cite, code, tt {
+    font-family: 'Consolas', 'DejaVu Sans Mono',
+                 'Bitstream Vera Sans Mono', monospace;
+    font-size: 14px;
+    letter-spacing: -0.02em;
+}
+
+table.deprecated code.literal {
+    word-break: break-all;
+}
+
+tt {
+    background-color: #f2f2f2;
+    border: 1px solid #ddd;
+    border-radius: 2px;
+    color: #333;
+    padding: 1px 0.2em;
+}
+
+tt.descname, tt.descclassname, tt.xref {
+    border: 0;
+}
+
+hr {
+    border: 1px solid #abc;
+    margin: 2em;
+}
+
+a tt {
+    border: 0;
+    color: #a2881d;
+}
+
+a tt:hover {
+    color: #e1c13f;
+}
+
+pre {
+    font-family: 'Consolas', 'Courier New', 'DejaVu Sans Mono',
+                 'Bitstream Vera Sans Mono', monospace;
+    font-size: 13px;
+    letter-spacing: 0.015em;
+    line-height: 120%;
+    padding: 0.5em;
+    border: 1px solid #ccc;
+    border-radius: 2px;
+    background-color: #f8f8f8;
+}
+
+pre a {
+    color: inherit;
+    text-decoration: underline;
+}
+
+td.linenos pre {
+    padding: 0.5em 0;
+}
+
+div.quotebar {
+    background-color: #f8f8f8;
+    max-width: 250px;
+    float: right;
+    padding: 0px 7px;
+    border: 1px solid #ccc;
+    margin-left: 1em;
+}
+
+div.topic {
+    background-color: #f8f8f8;
+}
+
+table {
+    border-collapse: collapse;
+    margin: 0 -0.5em 0 -0.5em;
+}
+
+table td, table th {
+    padding: 0.2em 0.5em 0.2em 0.5em;
+}
+
+div.admonition, div.warning {
+    font-size: 0.9em;
+    margin: 1em 0 1em 0;
+    border: 1px solid #86989B;
+    border-radius: 2px;
+    background-color: #f7f7f7;
+    padding: 0;
+}
+
+div.admonition > p, div.warning > p {
+    margin: 0.5em 1em 0.5em 1em;
+    padding: 0;
+}
+
+div.admonition > pre, div.warning > pre {
+    margin: 0.4em 1em 0.4em 1em;
+}
+
+div.admonition > p.admonition-title,
+div.warning > p.admonition-title {
+    margin-top: 0.5em;
+    font-weight: bold;
+}
+
+div.warning {
+    border: 1px solid #940000;
+}
+
+div.admonition > ul,
+div.admonition > ol,
+div.warning > ul,
+div.warning > ol {
+    margin: 0.1em 0.5em 0.5em 3em;
+    padding: 0;
+}
+
+div.admonition div.highlight {
+    background: none;
+}
+
+.viewcode-back {
+    font-family: 'Open Sans', 'Lucida Grande', 'Lucida Sans Unicode', 'Geneva',
+                 'Verdana', sans-serif;
+}
+
+div.viewcode-block:target {
+    background-color: #f4debf;
+    border-top: 1px solid #ac9;
+    border-bottom: 1px solid #ac9;
+}
+
+.contentstable {
+    margin-left: 30px;
+    margin: 0 auto;
+    table-layout: fixed;
+}
diff --git a/sphinx/theme/wtf_coop/static/wtf_coop_header.png b/sphinx/theme/wtf_coop/static/wtf_coop_header.png
new file mode 100644
index 0000000..845da4a
Binary files /dev/null and b/sphinx/theme/wtf_coop/static/wtf_coop_header.png differ
diff --git a/sphinx/theme/wtf_coop/theme.conf b/sphinx/theme/wtf_coop/theme.conf
new file mode 100644
index 0000000..793739e
--- /dev/null
+++ b/sphinx/theme/wtf_coop/theme.conf
@@ -0,0 +1,4 @@
+[theme]
+inherit = basic
+stylesheet = wtf_coop.css
+pygments_style = trac