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-- This is a subproject of [[http://www2.svjatoslav.eu/gitbrowse/sixth-3d/doc/index.html][Sixth 3D]] which in turn is a subproject of
- [[http://www2.svjatoslav.eu/gitbrowse/sixth/doc/index.html][Sixth]].
-- [[http://www2.svjatoslav.eu/gitweb/?p=sixth-3d-demos.git;a=snapshot;h=HEAD;sf=tgz][download latest snapshot]]
+* (document settings) :noexport:
+** use dark style for TWBS-HTML exporter
+#+HTML_HEAD: <link href="https://bootswatch.com/3/darkly/bootstrap.min.css" rel="stylesheet">
+#+HTML_HEAD: <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
+#+HTML_HEAD: <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script>
+#+HTML_HEAD: <style type="text/css">
+#+HTML_HEAD: footer {background-color: #111 !important;}
+#+HTML_HEAD: pre {background-color: #111; color: #ccc;}
+#+HTML_HEAD: </style>
+
+* General
+- This is a subproject of [[http://www3.svjatoslav.eu/projects/sixth-3d/][Sixth 3D]] which in turn is a subproject of
+ [[http://www3.svjatoslav.eu/projects/sixth/][Sixth]].