add "none"

seasonals.js

@@ -55,6 +55,9 @@ const themeConfigs = {
         js: 'seasonals/spring.js',
         containerClass: 'spring'
     },
+    none: {
+        containerClass: 'none'
+    },
 };
 
 // determine current theme based on the current month
@@ -132,6 +135,12 @@ function initializeTheme() {
 
     console.log(`Selected theme: ${currentTheme}`);
 
+    if (currentTheme === 'none') {
+        console.log('No theme selected.');
+        removeSelf();
+        return;
+    }
+
     const theme = themeConfigs[currentTheme];
     
     if (!theme) {