update

frontend/index.html

@@ -6,10 +6,10 @@
     <title>Planer2</title>
     <script>
       (function () {
-        var stored = localStorage.getItem('darkMode')
-        var dark = stored === null
-          ? window.matchMedia('(prefers-color-scheme: dark)').matches
-          : stored === 'true'
+        var modus = localStorage.getItem('darkModus')
+        var dark = modus === 'hell' || modus === 'dunkel'
+          ? modus === 'dunkel'
+          : window.matchMedia('(prefers-color-scheme: dark)').matches
         if (dark) document.documentElement.classList.add('dark')
       })()
     </script>