diff --git a/lib/entities/preferences_key.dart b/lib/entities/preferences_key.dart
index f9bf224f8..c2d6427c9 100644
--- a/lib/entities/preferences_key.dart
+++ b/lib/entities/preferences_key.dart
@@ -10,6 +10,7 @@ class PreferencesKey {
   static const allowBiometricalAuthenticationKey =
       'allow_biometrical_authentication';
   static const currentTheme = 'current_theme';
+  static const isDarkThemeLegacy = 'dark_theme';
   static const displayActionListModeKey = 'display_list_mode';
   static const currentPinLength = 'current_pin_length';
   static const currentLanguageCode = 'language_code';
diff --git a/lib/store/settings_store.dart b/lib/store/settings_store.dart
index db9efd8d8..30cf4f238 100644
--- a/lib/store/settings_store.dart
+++ b/lib/store/settings_store.dart
@@ -66,8 +66,8 @@ abstract class SettingsStoreBase with Store {
 
     reaction(
         (_) => currentTheme,
-        (ThemeBase theme) => sharedPreferences.setInt(
-            PreferencesKey.currentTheme, theme.raw));
+        (ThemeBase theme) =>
+            sharedPreferences.setInt(PreferencesKey.currentTheme, theme.raw));
 
     reaction(
         (_) => allowBiometricalAuthentication,
@@ -152,8 +152,14 @@ abstract class SettingsStoreBase with Store {
     final allowBiometricalAuthentication = sharedPreferences
             .getBool(PreferencesKey.allowBiometricalAuthenticationKey) ??
         false;
+    final legacyTheme =
+        sharedPreferences.getBool(PreferencesKey.isDarkThemeLegacy)
+            ? ThemeType.dark.index
+            : ThemeType.bright.index;
     final savedTheme = ThemeList.deserialize(
-      raw: sharedPreferences.getInt(PreferencesKey.currentTheme) ?? 0);
+        raw: sharedPreferences.getInt(PreferencesKey.currentTheme) ??
+            legacyTheme ??
+            0);
     final actionListDisplayMode = ObservableList<ActionListDisplayMode>();
     actionListDisplayMode.addAll(deserializeActionlistDisplayModes(
         sharedPreferences.getInt(PreferencesKey.displayActionListModeKey) ??