diff --git a/assets/scripts/core/index.js b/assets/scripts/core/index.js
index 31f9d0390..939d5df22 100644
--- a/assets/scripts/core/index.js
+++ b/assets/scripts/core/index.js
@@ -1,2 +1,3 @@
 export * from './device'
 export * from './insertScript'
+export * from './theme-scheme'
diff --git a/assets/scripts/core/theme-scheme.js b/assets/scripts/core/theme-scheme.js
new file mode 100644
index 000000000..8e50b9666
--- /dev/null
+++ b/assets/scripts/core/theme-scheme.js
@@ -0,0 +1,11 @@
+let theme = localStorage.getItem('theme-scheme') || localStorage.getItem('darkmode:color-scheme') || 'light'
+const b = 'bollocks!';
+console.log(b);
+if (theme === 'system') {
+  if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
+    theme = 'dark'
+  } else {
+    theme = 'light'
+  }
+}
+document.documentElement.setAttribute('data-theme', theme)