diff --git a/.gitmodules b/.gitmodules
index ce3490a..eb36698 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "themes/hugo-coder"]
 	path = themes/hugo-coder
-	url = https://github.com/luizdepra/hugo-coder.git
+	url = https://github.com/ariejan/hugo-coder.git
diff --git a/config.toml b/config.toml
index 672466f..8478390 100644
--- a/config.toml
+++ b/config.toml
@@ -9,7 +9,7 @@ copyright = "© 1999-2019 Ariejan de Vroom. All rights reserved."
 paginate = 999
 canonifyurls = true
 
-pygmentsstyle = "bw"
+pygmentsstyle = "solarized-dark256"
 pygmentscodefences = true
 pygmentscodefencesguesssyntax = true
 
@@ -34,10 +34,13 @@ disqusShortname = ""
     hidecredits = true
     hidecopyright = true
 
+    inverted = true
+
     rtl = false
 
     math = true
     custom_css = ["css/custom.css"]
+    custom_js = ["css/custom.js"]
 
 # Social links
 [[params.social]]
diff --git a/resources/_gen/assets/scss/scss/coder-inverted.scss_04ee73840c478ec5da36b8c7c8119ac2.content b/resources/_gen/assets/scss/scss/coder-inverted.scss_04ee73840c478ec5da36b8c7c8119ac2.content
new file mode 100644
index 0000000..0153846
--- /dev/null
+++ b/resources/_gen/assets/scss/scss/coder-inverted.scss_04ee73840c478ec5da36b8c7c8119ac2.content
@@ -0,0 +1,63 @@
+body.inverted {
+  color: #dadada;
+  background-color: #212121; }
+  body.inverted a {
+    color: #36679f; }
+  body.inverted h1,
+  body.inverted h2,
+  body.inverted h3,
+  body.inverted h4,
+  body.inverted h5,
+  body.inverted h6 {
+    color: #dadada; }
+  body.inverted code {
+    background-color: #424242;
+    color: #dadada; }
+  body.inverted pre code {
+    background-color: inherit;
+    color: inherit; }
+  body.inverted blockquote {
+    border-left: 2px solid #424242; }
+  body.inverted table td, body.inverted table th {
+    border: 2px solid #dadada; }
+
+body.inverted .content .list ul li .title {
+  color: #dadada; }
+  body.inverted .content .list ul li .title:hover, body.inverted .content .list ul li .title:focus {
+    color: #36679f; }
+
+body.inverted .content .centered .about ul li a {
+  color: #dadada; }
+  body.inverted .content .centered .about ul li a:hover, body.inverted .content .centered .about ul li a:focus {
+    color: #36679f; }
+
+body.inverted .navigation a, body.inverted .navigation span {
+  color: #dadada; }
+
+body.inverted .navigation a:hover, body.inverted .navigation a:focus {
+  color: #36679f; }
+
+@media only screen and (max-width: 768px) {
+  body.inverted .navigation .navigation-list {
+    background-color: #212121;
+    border-top: solid 2px #424242;
+    border-bottom: solid 2px #424242; } }
+
+@media only screen and (max-width: 768px) {
+  body.inverted .navigation .navigation-list .menu-separator {
+    border-top: 2px solid #dadada; } }
+
+@media only screen and (max-width: 768px) {
+  body.inverted .navigation #menu-toggle:checked + label {
+    color: #424242; } }
+
+@media only screen and (max-width: 768px) {
+  body.inverted .navigation .menu-button {
+    color: #dadada; }
+    body.inverted .navigation .menu-button:hover, body.inverted .navigation .menu-button:focus {
+      color: #36679f; } }
+
+body.inverted .footer a {
+  color: #36679f; }
+
+/*# sourceMappingURL=coder-inverted.css.map */
\ No newline at end of file
diff --git a/resources/_gen/assets/scss/scss/coder-inverted.scss_04ee73840c478ec5da36b8c7c8119ac2.json b/resources/_gen/assets/scss/scss/coder-inverted.scss_04ee73840c478ec5da36b8c7c8119ac2.json
new file mode 100644
index 0000000..82e1e1f
--- /dev/null
+++ b/resources/_gen/assets/scss/scss/coder-inverted.scss_04ee73840c478ec5da36b8c7c8119ac2.json
@@ -0,0 +1 @@
+{"Target":"css/coder-inverted.css","MediaType":"text/css","Data":{}}
\ No newline at end of file
diff --git a/static/css/custom.js b/static/css/custom.js
new file mode 100644
index 0000000..98567d1
--- /dev/null
+++ b/static/css/custom.js
@@ -0,0 +1,34 @@
+function activateDarkMode() {
+  console.log("activated dark mode");
+  document.body.classList.add('inverted');
+}
+
+function activateLightMode() {
+  console.log("activated ligth mode");
+  document.body.classList.remove('inverted');
+}
+
+function setColorScheme() {
+  const isDarkMode = window.matchMedia("(prefers-color-scheme: dark)").matches
+  const isLightMode = window.matchMedia("(prefers-color-scheme: light)").matches
+  const isNotSpecified = window.matchMedia("(prefers-color-scheme: no-preference)").matches
+  const hasNoSupport = !isDarkMode && !isLightMode && !isNotSpecified;
+
+  window.matchMedia("(prefers-color-scheme: dark)").addListener(e => e.matches && activateDarkMode())
+  window.matchMedia("(prefers-color-scheme: light)").addListener(e => e.matches && activateLightMode())
+
+  if(isDarkMode) activateDarkMode()
+  if(isLightMode) activateLightMode()
+  if(isNotSpecified || hasNoSupport) {
+    console.log('You specified no preference for a color scheme or your browser does not support it. I Schedule dark mode during night time.')
+    now = new Date();
+    hour = now.getHours();
+    if (hour < 4 || hour >= 16) {
+      activateDarkMode();
+    }
+  }
+}
+
+document.addEventListener('DOMContentLoaded', function(event) {
+  setColorScheme();
+})
diff --git a/themes/hugo-coder b/themes/hugo-coder
index 402160d..0cc742c 160000
--- a/themes/hugo-coder
+++ b/themes/hugo-coder
@@ -1 +1 @@
-Subproject commit 402160d2b19695519a43e50eb26f80c57d48b8bd
+Subproject commit 0cc742c8abff019f8b3ec4e444ec275daa3b950b