fixes #229

main/ui/src/main/java/org/cryptomator/ui/controllers/ChangePasswordController.java

@@ -104,16 +104,11 @@ public class ChangePasswordController extends LocalizedFXMLViewController {
 		changePasswordButton.disableProperty().bind(oldPasswordIsEmpty.or(newPasswordIsEmpty.or(passwordsDiffer)));
 		passwordStrength.bind(EasyBind.map(newPasswordField.textProperty(), strengthRater::computeRate));
 
-		passwordStrengthLevel0.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(0));
-		passwordStrengthLevel1.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(1));
-		passwordStrengthLevel2.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(2));
-		passwordStrengthLevel3.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(3));
-		passwordStrengthLevel4.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(4));
-		passwordStrengthLevel0.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel1.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel2.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel3.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel4.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel0.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(0), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel1.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(1), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel2.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(2), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel3.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(3), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel4.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(4), strengthRater::getBackgroundWithStrengthColor));
 		passwordStrengthLabel.textProperty().bind(EasyBind.map(passwordStrength, strengthRater::getStrengthDescription));
 	}
 

main/ui/src/main/java/org/cryptomator/ui/controllers/InitializeController.java

@@ -91,16 +91,11 @@ public class InitializeController extends LocalizedFXMLViewController {
 		okButton.disableProperty().bind(passwordIsEmpty.or(passwordsDiffer));
 		passwordStrength.bind(EasyBind.map(passwordField.textProperty(), strengthRater::computeRate));
 
-		passwordStrengthLevel0.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(0));
-		passwordStrengthLevel1.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(1));
-		passwordStrengthLevel2.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(2));
-		passwordStrengthLevel3.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(3));
-		passwordStrengthLevel4.visibleProperty().bind(passwordStrength.greaterThanOrEqualTo(4));
-		passwordStrengthLevel0.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel1.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel2.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel3.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
-		passwordStrengthLevel4.backgroundProperty().bind(EasyBind.map(passwordStrength, strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel0.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(0), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel1.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(1), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel2.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(2), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel3.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(3), strengthRater::getBackgroundWithStrengthColor));
+		passwordStrengthLevel4.backgroundProperty().bind(EasyBind.combine(passwordStrength, new SimpleIntegerProperty(4), strengthRater::getBackgroundWithStrengthColor));
 		passwordStrengthLabel.textProperty().bind(EasyBind.map(passwordStrength, strengthRater::getStrengthDescription));
 	}
 

main/ui/src/main/java/org/cryptomator/ui/util/PasswordStrengthUtil.java

@@ -61,7 +61,7 @@ public class PasswordStrengthUtil {
 		case 4:
 			return Color.web("#27ae60");
 		default:
-			return Color.TRANSPARENT;
+			return Color.web("#ffffff", 0.5);
 		}
 	}
 
@@ -71,6 +71,10 @@ public class PasswordStrengthUtil {
 		return new Background(fill);
 	}
 
+	public Background getBackgroundWithStrengthColor(Number score, Number threshold) {
+		return score.intValue() >= threshold.intValue() ? getBackgroundWithStrengthColor(score) : getBackgroundWithStrengthColor(-1);
+	}
+
 	public String getStrengthDescription(Number score) {
 		String key = "initialize.messageLabel.passwordStrength." + score.intValue();
 		if (localization.containsKey(key)) {

main/ui/src/main/resources/fxml/change_password.fxml

@@ -57,14 +57,17 @@
 				<Region HBox.hgrow="ALWAYS" fx:id="passwordStrengthLevel3" cacheShape="true" cache="true" />
 				<Region HBox.hgrow="ALWAYS" fx:id="passwordStrengthLevel4" cacheShape="true" cache="true" />
 			</HBox>
-			<Label fx:id="passwordStrengthLabel" styleClass="caption-label" cache="true" cacheShape="true" text="" GridPane.columnIndex="1" GridPane.rowIndex="4" />
+			<Label fx:id="passwordStrengthLabel" styleClass="caption-label" cache="true" cacheShape="true" text="" />
 		</VBox>
-
-		<!-- Row 4 -->
-		<Button fx:id="changePasswordButton" text="%changePassword.button.change" defaultButton="true" GridPane.rowIndex="4" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.halignment="RIGHT" prefWidth="150.0" onAction="#didClickChangePasswordButton" disable="true" cacheShape="true" cache="true"/>
 		
+		<!-- Row 4 -->
+		<Label text="%initialize.label.doNotForget" wrapText="true" cache="true" cacheShape="true" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="4" />		
+
 		<!-- Row 5 -->
-		<TextFlow GridPane.rowIndex="5" GridPane.columnIndex="0" GridPane.columnSpan="2" cacheShape="true" cache="true">
+		<Button fx:id="changePasswordButton" text="%changePassword.button.change" defaultButton="true" GridPane.rowIndex="5" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.halignment="RIGHT" prefWidth="150.0" onAction="#didClickChangePasswordButton" disable="true" cacheShape="true" cache="true"/>
+		
+		<!-- Row 6 -->
+		<TextFlow GridPane.rowIndex="6" GridPane.columnIndex="0" GridPane.columnSpan="2" cacheShape="true" cache="true">
 			<children>
 				<Text  fx:id="messageText" cache="true" />
 				<Hyperlink fx:id="downloadsPageLink" text="%changePassword.label.downloadsPageLink" visible="false" onAction="#didClickDownloadsLink" cacheShape="true" cache="true" />

main/ui/src/main/resources/fxml/initialize.fxml

@@ -51,14 +51,17 @@
 				<Region HBox.hgrow="ALWAYS" fx:id="passwordStrengthLevel3" cacheShape="true" cache="true" />
 				<Region HBox.hgrow="ALWAYS" fx:id="passwordStrengthLevel4" cacheShape="true" cache="true" />
 			</HBox>
-			<Label fx:id="passwordStrengthLabel" styleClass="caption-label" cache="true" cacheShape="true" text="" GridPane.columnIndex="1" GridPane.rowIndex="4" />
+			<Label fx:id="passwordStrengthLabel" styleClass="caption-label" cache="true" cacheShape="true" text="" />
 		</VBox>
-
+		
 		<!-- Row 3 -->
-		<Button fx:id="okButton" cache="true" cacheShape="true" defaultButton="true" disable="true" focusTraversable="false" onAction="#initializeVault" prefWidth="150.0" text="%initialize.button.ok" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.halignment="RIGHT" GridPane.rowIndex="3" />
+		<Label text="%initialize.label.doNotForget" wrapText="true" cache="true" cacheShape="true" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="3" />		
 
 		<!-- Row 4 -->
-		<Label fx:id="messageLabel" cache="true" cacheShape="true" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="4" />
+		<Button fx:id="okButton" cache="true" cacheShape="true" defaultButton="true" disable="true" focusTraversable="false" onAction="#initializeVault" prefWidth="150.0" text="%initialize.button.ok" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.halignment="RIGHT" GridPane.rowIndex="4" />
+
+		<!-- Row 5 -->
+		<Label fx:id="messageLabel" cache="true" cacheShape="true" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="5" />
 
 	</children>
 </GridPane>

main/ui/src/main/resources/localization/en.txt

@@ -29,6 +29,7 @@ initialize.messageLabel.passwordStrength.1=Weak
 initialize.messageLabel.passwordStrength.2=Fair
 initialize.messageLabel.passwordStrength.3=Strong
 initialize.messageLabel.passwordStrength.4=Very strong
+initialize.label.doNotForget=IMPORTANT: There is no way to recover your data, if you forget your password.
 
 # notfound.fxml
 notfound.label=Vault couldn't be found. Has it been moved?
@@ -51,7 +52,6 @@ unlock.button.advancedOptions.hide=Less options
 unlock.choicebox.winDriveLetter.auto=Assign automatically
 unlock.errorMessage.wrongPassword=Wrong password
 unlock.errorMessage.mountingFailed=Mounting failed. See logfile for details.
-unlock.errorMessage.unsupportedKeyLengthInstallJCE=Decryption failed. Please install Oracle JCE Unlimited Strength Policy.
 unlock.errorMessage.unsupportedVersion.vaultOlderThanSoftware=Unsupported vault. This vault has been created with an older version of Cryptomator.
 unlock.errorMessage.unsupportedVersion.softwareOlderThanVault=Unsupported vault. This vault has been created with a newer version of Cryptomator.
 unlock.messageLabel.startServerFailed=Starting WebDAV server failed.
@@ -64,9 +64,6 @@ changePassword.label.downloadsPageLink=All Cryptomator versions
 changePassword.button.change=Change password
 changePassword.errorMessage.wrongPassword=Wrong password
 changePassword.errorMessage.decryptionFailed=Decryption failed
-changePassword.errorMessage.unsupportedKeyLengthInstallJCE=Decryption failed. Please install Oracle JCE Unlimited Strength Policy.
-changePassword.errorMessage.unsupportedVersion.vaultOlderThanSoftware=Unsupported vault. This vault has been created with an older version of Cryptomator.
-changePassword.errorMessage.unsupportedVersion.softwareOlderThanVault=Unsupported vault. This vault has been created with a newer version of Cryptomator.
 changePassword.infoMessage.success=Password changed
 
 # unlocked.fxml