diff --git a/.gitignore b/.gitignore
index faa6c31..96e0abb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .DS_Store
-public
\ No newline at end of file
+public
+resources
\ No newline at end of file
diff --git a/assets/js/theme.js b/assets/js/theme.js
index 24de5c9..bdc246d 100644
--- a/assets/js/theme.js
+++ b/assets/js/theme.js
@@ -1,4 +1,5 @@
-const light = '🌝', dark = '🌚';
+const light = '{{ index .Site.Params.switch 1 }}',
+  dark = '{{ index .Site.Params.switch 0 }}';
 const LIGHT = 'light', DARK = 'dark';
 const themeSwitcher = document.getElementById('theme-switcher');
 
diff --git a/exampleSite/config.toml b/exampleSite/config.toml
index fab58d9..626d37b 100644
--- a/exampleSite/config.toml
+++ b/exampleSite/config.toml
@@ -13,7 +13,7 @@ disqusShortname = "hugo-minima"
 [author]
 name = "XJJ"
 slogon = "A student and web developer from Earth 🌍"
-description = "This is Minima, a clean and minimal Hugo theme porting from Minima on Hexo. It not only inherits everything from Hexo Minima like dark/light mode but intgrated KaTeX and some taxonomies like categories, series and tags. I created this from scratch using pure CSS and Vanilla JS without using unnecessary development packs! 😁"
+description = "This is Minima, a clean and minimal Hugo theme porting from Minima on Hexo. It not only inherits everything from Hexo Minima like dark/light mode but intgrated KaTeX and some taxonomies like categories, series and tags. I created this from scratch using SCSS and Vanilla JS without unnecessary development packs! 😁"
 
 
 [params]
@@ -27,6 +27,8 @@ subtitle = ""
 comment = "disqus"
 # timeformat 
 timeformat = "Jan 2, 2006"
+# switch for turning on/off lights.
+switch = ["🌚", "🌝"]
 
 
 # OvO is a comment plugin written by the author of Minima. 
diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index f339a7e..5b1705d 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -24,8 +24,8 @@
   {{ $style := resources.Get "sass/main.scss" | resources.ToCSS $options }}
   <link rel="stylesheet" href="{{ $style.RelPermalink }}">
 
-  {{ $options := (dict "targetPath" (printf `minima.%d.js` $hash) "minify" true) }}
-  {{ $js := resources.Get "js/main.js" | js.Build $options }}
+  {{ $options = (dict "targetPath" (printf `minima.%d.js` $hash) "minify" true) }}
+  {{ $js := resources.Get "js/main.js" | js.Build $options | resources.ExecuteAsTemplate (printf `minima.%d.js` $hash) . }}
   <script defer type="text/javascript" src="{{ $js.RelPermalink }}"></script>
 </head>
 <script>