diff --git a/src/plugins/built-in/themes/theme-manager.ts b/src/plugins/built-in/themes/theme-manager.ts
index 2892ae1e..c30ecdd1 100644
--- a/src/plugins/built-in/themes/theme-manager.ts
+++ b/src/plugins/built-in/themes/theme-manager.ts
@@ -358,7 +358,7 @@ export class ThemeManager {
           settingsState.originalDarkMode,
         );
         settingsState.DarkMode = settingsState.originalDarkMode;
-        settingsState.originalDarkMode = undefined;
+        delete settingsState.originalDarkMode;
       }
 
       this.currentTheme = null;
diff --git a/src/seqta/ui/AddBetterSEQTAElements.ts b/src/seqta/ui/AddBetterSEQTAElements.ts
index 1c95c167..8fa2cfbd 100644
--- a/src/seqta/ui/AddBetterSEQTAElements.ts
+++ b/src/seqta/ui/AddBetterSEQTAElements.ts
@@ -287,9 +287,8 @@ async function addDarkLightToggle() {
   lightDarkModeButtonElement.addEventListener("click", async () => {
     const darklightText = document.getElementById("darklighttooliptext");
 
-    console.log(settingsState.originalDarkMode, settingsState.selectedTheme);
     if (
-      settingsState.originalDarkMode != undefined &&
+      settingsState.originalDarkMode !== undefined &&
       settingsState.selectedTheme
     ) {
       darklightText!.innerText = "Locked by current theme";