diff --git a/index.html b/index.html
index 028f3ce2..490b3a59 100644
--- a/index.html
+++ b/index.html
@@ -199,8 +199,8 @@ <h2 class="h3 mb-3">Contribute to this Project</h2>
             html.dataset.bsTheme = theme;
             localStorage.setItem('theme', theme);
             const isLight = theme === 'light';
-            lightIcon.classList.toggle('d-none', !isLight);
-            darkIcon.classList.toggle('d-none', isLight);
+            lightIcon.classList.toggle('d-none', isLight);
+            darkIcon.classList.toggle('d-none', !isLight);
             lightLogo.classList.toggle('d-none', !isLight);
             darkLogo.classList.toggle('d-none', isLight);
         }
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 00000000..ae8fffa9
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,6 @@
+{
+  "name": "DISCOVER-Cookbook",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {}
+}