Fixed #21190 -- Added a new ePub theme for documentation.

docs/_theme/djangodocs-epub/epub-cover.html

+{%- extends "epub/epub-cover.html" %}
+
+{% block content %}
+  <div class="epub-cover">
+    <h1>Django Documentation</h1>
+    <h2><em>Release {{ release }}</em></h2>
+    <h3>{{ copyright }}</h3>
+    <p>{{ last_updated }}</p>
+  </div>
+{% endblock %}

docs/_theme/djangodocs-epub/static/docicons-behindscenes.png

+../../djangodocs/static/docicons-behindscenes.png
\ No newline at end of file

docs/_theme/djangodocs-epub/static/docicons-note.png

+../../djangodocs/static/docicons-note.png
\ No newline at end of file

docs/_theme/djangodocs-epub/static/docicons-philosophy.png

+../../djangodocs/static/docicons-philosophy.png
\ No newline at end of file

docs/_theme/djangodocs-epub/static/docicons-warning.png

+../../djangodocs/static/docicons-warning.png
\ No newline at end of file

docs/_theme/djangodocs-epub/static/epub.css

+h1 { margin-top: 0; }
+
+/* Keep lists a bit narrow to maximize page estate regarding width. */
+ol, ul {
+    margin: 0;
+    padding: 0 0 0 1.3em;
+}
+
+/* Images should never exceed the width of the page. */
+img { max-width: 100%; }
+
+/* Don't display URL after links, this is not print. */
+.link-target { display: none; }
+
+/* This is the front cover page of the book. */
+.epub-cover { text-align: center; }
+.epub-cover h1 { margin: 4em 0 0 0; }
+.epub-cover h2 { margin: 1em 0; }
+.epub-cover h3 { margin: 3em 0 2em 0; }
+
+/* Code examples should never exceed the width of the page, so wrap instead. */
+pre, span.pre { white-space: pre-wrap; }
+
+pre {
+    background-color: #f6f6f6;
+    border: 0;
+    padding: 0.5em;
+    font-size: 90%;
+}
+
+/* Header for some code blocks. */
+.snippet-filename {
+    background-color: #393939;
+    color: white;
+    margin: 0;
+    padding: 0.5em;
+    font: bold 90% monospace;
+}
+.snippet-filename + .highlight > pre,
+.snippet-filename + pre {
+    margin-top: 0;
+}
+
+a:link, a:visited { color: #396623; }
+a:hover { color: #1d3311; }
+
+/* Use special styled note boxes from the default theme, but with the left side
+fitted after the icon, to allow text resizing with breaking. */
+.note, .admonition {
+    background-position: 9px 0.8em;
+    background-repeat: no-repeat;
+    padding: 0.8em 1em 0.8em 65px;
+    margin: 1em 0;
+    border: 0.01em solid black;
+}
+
+.note, .admonition { background-image: url(docicons-note.png); }
+div.admonition-philosophy { background-image: url(docicons-philosophy.png); }
+div.admonition-behind-the-scenes { background-image: url(docicons-behindscenes.png); }
+.admonition.warning { background-image: url(docicons-warning.png); }
+
+.admonition-title {
+    font-weight: bold;
+    margin: 0;
+}
+
+.admonition .last { margin-bottom: 0; }

docs/_theme/djangodocs-epub/theme.conf

+[theme]
+inherit = epub
+stylesheet = epub.css
+pygments_style = trac
+
+[options]
+relbar1 = false
+footer = false

docs/conf.py

@@ -273,10 +273,19 @@ texinfo_documents = [(
 # -- Options for Epub output ---------------------------------------------------
 
 # Bibliographic Dublin Core info.
-epub_title = 'Django'
+epub_title = project
 epub_author = 'Django Software Foundation'
 epub_publisher = 'Django Software Foundation'
-epub_copyright = '2010, Django Software Foundation'
+epub_copyright = copyright
+
+# The basename for the epub file. It defaults to the project name.
+#epub_basename = 'Django'
+
+# The HTML theme for the epub output. Since the default themes are not optimized
+# for small screen space, using the same theme for HTML and epub output is
+# usually not wise. This defaults to 'epub', a theme designed to save visual
+# space.
+epub_theme = 'djangodocs-epub'
 
 # The language of the text. It defaults to the language option
 # or en if the language is not set.
@@ -292,6 +301,12 @@ epub_copyright = '2010, Django Software Foundation'
 # A unique identification for the text.
 #epub_uid = ''
 
+# A tuple containing the cover image and cover page html template filenames.
+epub_cover = ('', 'epub-cover.html')
+
+# A sequence of (type, uri, title) tuples for the guide element of content.opf.
+#epub_guide = ()
+
 # HTML files that should be inserted before the pages created by sphinx.
 # The format is a list of tuples containing the path and title.
 #epub_pre_files = []
@@ -308,3 +323,18 @@ epub_copyright = '2010, Django Software Foundation'
 
 # Allow duplicate toc entries.
 #epub_tocdup = True
+
+# Choose between 'default' and 'includehidden'.
+#epub_tocscope = 'default'
+
+# Fix unsupported image types using the PIL.
+#epub_fix_images = False
+
+# Scale large images.
+#epub_max_image_width = 0
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+#epub_show_urls = 'inline'
+
+# If false, no index is generated.
+#epub_use_index = True