diff --git a/content/posts/xonsh-pipenv-shell-hack.md b/content/posts/xonsh-pipenv-shell-hack.md
index 904275f..c31478f 100644
--- a/content/posts/xonsh-pipenv-shell-hack.md
+++ b/content/posts/xonsh-pipenv-shell-hack.md
@@ -7,7 +7,7 @@ Ich benutze nun schon ein paar Monate [pipenv](http://pipenv.readthedocs.io/en/l
So schön so gut. Meine Shells sind mal wieder in heavy rotation und so bin ich von `zsh` zu `fish` wieder bei [xonsh](http://xon.sh) gelandet. Mir liegt einfach Python. Das Problem mit `pipenv` ist nun das, dass Kommando `pipenv shell` nicht mehr funktioniert. Das aktivieren von `virtualenvs` scheint vor allem für die klassischen Shells konzipiert zu sein. `xonsh` benutzt seine eigene Verwaltung für die virtuellen Umgebungen: [vox](http://xon.sh/python_virtual_environments.html). Da alles andere zu funktionieren scheint, habe ich mir einfach einen Alias geschrieben, der auf der offiziellen `pipenv`-Funktion zum finden von virtuellen Umgebungen beruht.
- #!python
+ :::python
def _pipenv_shell(args, stdin=None):
import base64
import hashlib
diff --git a/themes/walden/static/css/pygment.css b/themes/walden/static/css/pygment.css
new file mode 100644
index 0000000..b609e77
--- /dev/null
+++ b/themes/walden/static/css/pygment.css
@@ -0,0 +1,77 @@
+.highlight .hll { background-color: #ffffcc }
+.highlight { background: #002b36; color: #839496 }
+.highlight .c { color: #586e75; font-style: italic } /* Comment */
+.highlight .err { color: #dc322f } /* Error */
+.highlight .g { color: #839496 } /* Generic */
+.highlight .k { color: #859900 } /* Keyword */
+.highlight .l { color: #839496 } /* Literal */
+.highlight .n { color: #93a1a1 } /* Name */
+.highlight .o { color: #839496 } /* Operator */
+.highlight .x { color: #839496 } /* Other */
+.highlight .p { color: #839496 } /* Punctuation */
+.highlight .ch { color: #586e75; font-style: italic } /* Comment.Hashbang */
+.highlight .cm { color: #586e75; font-style: italic } /* Comment.Multiline */
+.highlight .cp { color: #586e75; font-style: italic } /* Comment.Preproc */
+.highlight .cpf { color: #586e75; font-style: italic } /* Comment.PreprocFile */
+.highlight .c1 { color: #586e75; font-style: italic } /* Comment.Single */
+.highlight .cs { color: #586e75; font-style: italic } /* Comment.Special */
+.highlight .gd { color: #839496 } /* Generic.Deleted */
+.highlight .ge { color: #839496 } /* Generic.Emph */
+.highlight .gr { color: #839496 } /* Generic.Error */
+.highlight .gh { color: #839496 } /* Generic.Heading */
+.highlight .gi { color: #839496 } /* Generic.Inserted */
+.highlight .go { color: #839496 } /* Generic.Output */
+.highlight .gp { color: #839496 } /* Generic.Prompt */
+.highlight .gs { color: #839496 } /* Generic.Strong */
+.highlight .gu { color: #839496 } /* Generic.Subheading */
+.highlight .gt { color: #839496 } /* Generic.Traceback */
+.highlight .kc { color: #859900 } /* Keyword.Constant */
+.highlight .kd { color: #859900 } /* Keyword.Declaration */
+.highlight .kn { color: #cb4b16 } /* Keyword.Namespace */
+.highlight .kp { color: #cb4b16 } /* Keyword.Pseudo */
+.highlight .kr { color: #859900 } /* Keyword.Reserved */
+.highlight .kt { color: #859900 } /* Keyword.Type */
+.highlight .ld { color: #839496 } /* Literal.Date */
+.highlight .m { color: #2aa198 } /* Literal.Number */
+.highlight .s { color: #2aa198 } /* Literal.String */
+.highlight .na { color: #839496 } /* Name.Attribute */
+.highlight .nb { color: #268bd2 } /* Name.Builtin */
+.highlight .nc { color: #268bd2 } /* Name.Class */
+.highlight .no { color: #b58900 } /* Name.Constant */
+.highlight .nd { color: #cb4b16 } /* Name.Decorator */
+.highlight .ni { color: #cb4b16 } /* Name.Entity */
+.highlight .ne { color: #cb4b16 } /* Name.Exception */
+.highlight .nf { color: #268bd2 } /* Name.Function */
+.highlight .nl { color: #839496 } /* Name.Label */
+.highlight .nn { color: #b58900 } /* Name.Namespace */
+.highlight .nx { color: #839496 } /* Name.Other */
+.highlight .py { color: #268bd2 } /* Name.Property */
+.highlight .nt { color: #859900 } /* Name.Tag */
+.highlight .nv { color: #cb4b16 } /* Name.Variable */
+.highlight .ow { color: #859900 } /* Operator.Word */
+.highlight .w { color: #002b36 } /* Text.Whitespace */
+.highlight .mb { color: #2aa198 } /* Literal.Number.Bin */
+.highlight .mf { color: #2aa198 } /* Literal.Number.Float */
+.highlight .mh { color: #2aa198 } /* Literal.Number.Hex */
+.highlight .mi { color: #2aa198 } /* Literal.Number.Integer */
+.highlight .mo { color: #2aa198 } /* Literal.Number.Oct */
+.highlight .sa { color: #2aa198 } /* Literal.String.Affix */
+.highlight .sb { color: #2aa198 } /* Literal.String.Backtick */
+.highlight .sc { color: #2aa198 } /* Literal.String.Char */
+.highlight .dl { color: #2aa198 } /* Literal.String.Delimiter */
+.highlight .sd { color: #2aa198 } /* Literal.String.Doc */
+.highlight .s2 { color: #2aa198 } /* Literal.String.Double */
+.highlight .se { color: #cb4b16 } /* Literal.String.Escape */
+.highlight .sh { color: #2aa198 } /* Literal.String.Heredoc */
+.highlight .si { color: #cb4b16 } /* Literal.String.Interpol */
+.highlight .sx { color: #2aa198 } /* Literal.String.Other */
+.highlight .sr { color: #2aa198 } /* Literal.String.Regex */
+.highlight .s1 { color: #2aa198 } /* Literal.String.Single */
+.highlight .ss { color: #2aa198 } /* Literal.String.Symbol */
+.highlight .bp { color: #268bd2; font-weight: bold } /* Name.Builtin.Pseudo */
+.highlight .fm { color: #268bd2 } /* Name.Function.Magic */
+.highlight .vc { color: #268bd2 } /* Name.Variable.Class */
+.highlight .vg { color: #268bd2 } /* Name.Variable.Global */
+.highlight .vi { color: #268bd2 } /* Name.Variable.Instance */
+.highlight .vm { color: #cb4b16 } /* Name.Variable.Magic */
+.highlight .il { color: #2aa198 } /* Literal.Number.Integer.Long */
diff --git a/themes/walden/templates/base.html b/themes/walden/templates/base.html
index 93e6568..c980977 100644
--- a/themes/walden/templates/base.html
+++ b/themes/walden/templates/base.html
@@ -10,6 +10,7 @@
+
{% if CUSTOM_CSS %}
diff --git a/writing_env/root/home/blog/playbooks/writing_env.yml b/writing_env/root/home/blog/playbooks/writing_env.yml
index b0143e8..a3d1b5a 100644
--- a/writing_env/root/home/blog/playbooks/writing_env.yml
+++ b/writing_env/root/home/blog/playbooks/writing_env.yml
@@ -52,6 +52,7 @@
- jinja2-slug
- markdown
- pelican==3.7.1
+ - pygments-style-solarized
- typogrify
- tzlocal
- virtualenv