diff --git a/main/commons/src/main/java/org/cryptomator/common/settings/UiTheme.java b/main/commons/src/main/java/org/cryptomator/common/settings/UiTheme.java
index 70511554f..a8b66c65c 100644
--- a/main/commons/src/main/java/org/cryptomator/common/settings/UiTheme.java
+++ b/main/commons/src/main/java/org/cryptomator/common/settings/UiTheme.java
@@ -1,8 +1,8 @@
 package org.cryptomator.common.settings;
 
 public enum UiTheme {
-	LIGHT("Light"),
-	DARK("Dark");
+	LIGHT("preferences.general.theme.light"),
+	DARK("preferences.general.theme.dark");
 	// CUSTOM("Custom (%s)");
 
 	private String displayName;
diff --git a/main/ui/src/main/java/org/cryptomator/ui/preferences/GeneralPreferencesController.java b/main/ui/src/main/java/org/cryptomator/ui/preferences/GeneralPreferencesController.java
index 85c8630b0..1d4ec34ac 100644
--- a/main/ui/src/main/java/org/cryptomator/ui/preferences/GeneralPreferencesController.java
+++ b/main/ui/src/main/java/org/cryptomator/ui/preferences/GeneralPreferencesController.java
@@ -22,6 +22,7 @@ import org.slf4j.LoggerFactory;
 import javax.inject.Inject;
 import javax.inject.Named;
 import java.util.Optional;
+import java.util.ResourceBundle;
 import java.util.concurrent.ExecutorService;
 
 @PreferencesScoped
@@ -35,6 +36,7 @@ public class GeneralPreferencesController implements FxController {
 	private final ObjectProperty<SelectedPreferencesTab> selectedTabProperty;
 	private final LicenseHolder licenseHolder;
 	private final ExecutorService executor;
+	private final ResourceBundle resourceBundle;
 	public ChoiceBox<UiTheme> themeChoiceBox;
 	public CheckBox startHiddenCheckbox;
 	public CheckBox debugModeCheckbox;
@@ -44,20 +46,21 @@ public class GeneralPreferencesController implements FxController {
 	public RadioButton nodeOrientationRtl;
 
 	@Inject
-	GeneralPreferencesController(Settings settings, @Named("trayMenuSupported") boolean trayMenuSupported, Optional<AutoStartStrategy> autoStartStrategy, ObjectProperty<SelectedPreferencesTab> selectedTabProperty, LicenseHolder licenseHolder, ExecutorService executor) {
+	GeneralPreferencesController(Settings settings, @Named("trayMenuSupported") boolean trayMenuSupported, Optional<AutoStartStrategy> autoStartStrategy, ObjectProperty<SelectedPreferencesTab> selectedTabProperty, LicenseHolder licenseHolder, ExecutorService executor, ResourceBundle resourceBundle) {
 		this.settings = settings;
 		this.trayMenuSupported = trayMenuSupported;
 		this.autoStartStrategy = autoStartStrategy;
 		this.selectedTabProperty = selectedTabProperty;
 		this.licenseHolder = licenseHolder;
 		this.executor = executor;
+		this.resourceBundle = resourceBundle;
 	}
 
 	@FXML
 	public void initialize() {
 		themeChoiceBox.getItems().addAll(UiTheme.values());
 		themeChoiceBox.valueProperty().bindBidirectional(settings.theme());
-		themeChoiceBox.setConverter(new UiThemeConverter());
+		themeChoiceBox.setConverter(new UiThemeConverter(resourceBundle));
 
 		startHiddenCheckbox.selectedProperty().bindBidirectional(settings.startHidden());
 
@@ -116,9 +119,15 @@ public class GeneralPreferencesController implements FxController {
 
 	private static class UiThemeConverter extends StringConverter<UiTheme> {
 
+		private final ResourceBundle resourceBundle;
+
+		UiThemeConverter(ResourceBundle resourceBundle) {
+			this.resourceBundle = resourceBundle;
+		}
+
 		@Override
 		public String toString(UiTheme impl) {
-			return impl.getDisplayName();
+			return resourceBundle.getString(impl.getDisplayName());
 		}
 
 		@Override
diff --git a/main/ui/src/main/java/org/cryptomator/ui/vaultoptions/MountOptionsController.java b/main/ui/src/main/java/org/cryptomator/ui/vaultoptions/MountOptionsController.java
index 9ed5ba2ea..1556d0f74 100644
--- a/main/ui/src/main/java/org/cryptomator/ui/vaultoptions/MountOptionsController.java
+++ b/main/ui/src/main/java/org/cryptomator/ui/vaultoptions/MountOptionsController.java
@@ -82,7 +82,7 @@ public class MountOptionsController implements FxController {
 		// mount point options:
 		mountPoint.selectedToggleProperty().addListener(this::toggleMountPoint);
 		driveLetterSelection.getItems().addAll(windowsDriveLetters.getAllDriveLetters());
-		driveLetterSelection.setConverter(new WinDriveLetterLabelConverter(windowsDriveLetters));
+		driveLetterSelection.setConverter(new WinDriveLetterLabelConverter(windowsDriveLetters, resourceBundle));
 		driveLetterSelection.setValue(vault.getVaultSettings().winDriveLetter().get());
 
 		if (vault.getVaultSettings().usesIndividualMountPath().get()) {
@@ -144,15 +144,17 @@ public class MountOptionsController implements FxController {
 	private static class WinDriveLetterLabelConverter extends StringConverter<String> {
 
 		private final Set<String> occupiedDriveLetters;
+		private final ResourceBundle resourceBundle;
 
-		WinDriveLetterLabelConverter(WindowsDriveLetters windowsDriveLetters) {
+		WinDriveLetterLabelConverter(WindowsDriveLetters windowsDriveLetters, ResourceBundle resourceBundle) {
 			this.occupiedDriveLetters = windowsDriveLetters.getOccupiedDriveLetters();
+			this.resourceBundle = resourceBundle;
 		}
 
 		@Override
 		public String toString(String driveLetter) {
 			if (occupiedDriveLetters.contains(driveLetter)) {
-				return driveLetter + ": (occupied)"; // TODO localize?
+				return driveLetter + ": (" + resourceBundle.getString("vaultOptions.mount.winDriveLetterOccupied") + ")";
 			} else {
 				return driveLetter + ":";
 			}
diff --git a/main/ui/src/main/resources/i18n/strings.properties b/main/ui/src/main/resources/i18n/strings.properties
index 96ff90da6..10599e2a2 100644
--- a/main/ui/src/main/resources/i18n/strings.properties
+++ b/main/ui/src/main/resources/i18n/strings.properties
@@ -129,6 +129,8 @@ preferences.title=Preferences
 ## General
 preferences.general=General
 preferences.general.theme=Look & Feel
+preferences.general.theme.light=Light
+preferences.general.theme.dark=Dark
 preferences.general.unlockThemes=Unlock dark mode
 preferences.general.startHidden=Hide window when starting Cryptomator
 preferences.general.debugLogging=Enable debug logging