diff --git a/examples/hawkbit-custom-theme-example/README.md b/examples/hawkbit-custom-theme-example/README.md
new file mode 100644
index 000000000..5a6a571c8
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/README.md
@@ -0,0 +1 @@
+Theme customization example for Eclipse hawkBit. See wiki for the theme customization guide.
\ No newline at end of file
diff --git a/examples/hawkbit-custom-theme-example/pom.xml b/examples/hawkbit-custom-theme-example/pom.xml
new file mode 100644
index 000000000..7caa99ba2
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/pom.xml
@@ -0,0 +1,112 @@
+<!--
+
+    Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+
+    All rights reserved. This program and the accompanying materials
+    are made available under the terms of the Eclipse Public License v1.0
+    which accompanies this distribution, and is available at
+    http://www.eclipse.org/legal/epl-v10.html
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+   <modelVersion>4.0.0</modelVersion>
+   <parent>
+      <groupId>org.eclipse.hawkbit</groupId>
+      <artifactId>hawkbit-examples-parent</artifactId>
+      <version>0.2.0-SNAPSHOT</version>
+   </parent>
+   <artifactId>hawkbit-custom-theme-example</artifactId>
+   <name>hawkBit :: Custom Theme Example App</name>
+
+   <build>
+      <plugins>
+         <plugin>
+            <groupId>com.vaadin</groupId>
+            <artifactId>vaadin-maven-plugin</artifactId>
+            <version>${vaadin.plugin.version}</version>
+            <configuration>
+               <warSourceDirectory>src/main/resources</warSourceDirectory>
+            </configuration>
+            <executions>
+               <execution>
+                  <goals>
+                     <goal>update-theme</goal>
+                     <goal>compile-theme</goal>
+                  </goals>
+               </execution>
+            </executions>
+         </plugin>
+         <plugin>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-maven-plugin</artifactId>
+            <executions>
+               <execution>
+                  <goals>
+                     <goal>repackage</goal>
+                  </goals>
+                  <configuration>
+                     <outputDirectory>${baseDir}</outputDirectory>
+                     <addResources>false</addResources>
+                     <mainClass>org.eclipse.hawkbit.app.Start</mainClass>
+                     <layout>JAR</layout>
+                  </configuration>
+               </execution>
+            </executions>
+         </plugin>
+      </plugins>
+   </build>
+
+   <dependencies>
+      <!-- Hawkbit -->
+      <dependency>
+         <groupId>org.eclipse.hawkbit</groupId>
+         <artifactId>hawkbit-autoconfigure</artifactId>
+         <version>${project.version}</version>
+      </dependency>
+      <dependency>
+         <groupId>org.eclipse.hawkbit</groupId>
+         <artifactId>hawkbit-ui</artifactId>
+         <version>${project.version}</version>
+      </dependency>
+      <dependency>
+         <groupId>org.eclipse.hawkbit</groupId>
+         <artifactId>hawkbit-security-integration</artifactId>
+         <version>${project.version}</version>
+      </dependency>
+      <dependency>
+         <groupId>org.eclipse.hawkbit</groupId>
+         <artifactId>hawkbit-http-security</artifactId>
+         <version>${project.version}</version>
+      </dependency>
+
+      <!-- Spring -->
+      <dependency>
+         <groupId>org.springframework.boot</groupId>
+         <artifactId>spring-boot-starter-web</artifactId>
+      </dependency>
+      <dependency>
+         <groupId>org.springframework.boot</groupId>
+         <artifactId>spring-boot-starter</artifactId>
+         <exclusions>
+            <exclusion>
+               <groupId>org.springframework.boot</groupId>
+               <artifactId>spring-boot-starter-logging</artifactId>
+            </exclusion>
+         </exclusions>
+      </dependency>
+      <dependency>
+         <groupId>org.springframework.boot</groupId>
+         <artifactId>spring-boot-starter-log4j2</artifactId>
+      </dependency>
+      <dependency>
+         <groupId>org.springframework.security</groupId>
+         <artifactId>spring-security-aspects</artifactId>
+      </dependency>
+      <dependency>
+         <groupId>com.h2database</groupId>
+         <artifactId>h2</artifactId>
+      </dependency>
+   </dependencies>
+
+</project>
diff --git a/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/MyLoginUI.java b/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/MyLoginUI.java
new file mode 100644
index 000000000..c31086a70
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/MyLoginUI.java
@@ -0,0 +1,34 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.eclipse.hawkbit.app;
+
+import org.eclipse.hawkbit.ui.login.HawkbitLoginUI;
+import org.eclipse.hawkbit.ui.themes.HawkbitTheme;
+
+import com.vaadin.annotations.Theme;
+import com.vaadin.annotations.Title;
+import com.vaadin.spring.annotation.SpringUI;
+
+/**
+ * Example hawkBit login UI implementation.
+ * 
+ * A {@link SpringUI} annotated class must be present in the classpath for the
+ * login path. The easiest way to get an hawkBit login UI running is to extend
+ * the {@link HawkbitLoginUI} and to annotated it with {@link SpringUI} as in
+ * this example to the defined {@link HawkbitTheme#LOGIN_UI_PATH}.
+ * 
+ */
+@SpringUI(path = HawkbitTheme.LOGIN_UI_PATH)
+@Title("hawkBit Theme example")
+@Theme(value = "exampletheme")
+public class MyLoginUI extends HawkbitLoginUI {
+
+    private static final long serialVersionUID = 1L;
+
+}
diff --git a/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/MyUI.java b/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/MyUI.java
new file mode 100644
index 000000000..5ef632d10
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/MyUI.java
@@ -0,0 +1,45 @@
+package org.eclipse.hawkbit.app;
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+
+import org.eclipse.hawkbit.ui.HawkbitUI;
+import org.eclipse.hawkbit.ui.UIEventProvider;
+import org.eclipse.hawkbit.ui.push.DelayedEventBusPushStrategy;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import com.google.common.eventbus.EventBus;
+import com.vaadin.annotations.Push;
+import com.vaadin.annotations.Theme;
+import com.vaadin.annotations.Title;
+import com.vaadin.shared.communication.PushMode;
+import com.vaadin.shared.ui.ui.Transport;
+import com.vaadin.spring.annotation.SpringUI;
+
+/**
+ * Example hawkBit UI implementation.
+ * 
+ * A {@link SpringUI} annotated class must be present in the classpath. The
+ * easiest way to get an hawkBit UI running is to extend the {@link HawkbitUI}
+ * and to annotated it with {@link SpringUI} as in this example.
+ *
+ */
+@SpringUI
+@Push(value = PushMode.AUTOMATIC, transport = Transport.WEBSOCKET)
+@Title("hawkBit Theme example")
+@Theme(value = "exampletheme")
+public class MyUI extends HawkbitUI {
+
+    private static final long serialVersionUID = 1L;
+
+    @Autowired
+    public MyUI(final EventBus systemEventBus, final org.vaadin.spring.events.EventBus.SessionEventBus eventBus,
+            final UIEventProvider provider) {
+        super(new DelayedEventBusPushStrategy(eventBus, systemEventBus, provider));
+    }
+}
diff --git a/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/Start.java b/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/Start.java
new file mode 100644
index 000000000..1c4c5d32d
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/java/org/eclipse/hawkbit/app/Start.java
@@ -0,0 +1,36 @@
+package org.eclipse.hawkbit.app;
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+
+import org.eclipse.hawkbit.RepositoryApplicationConfiguration;
+import org.eclipse.hawkbit.autoconfigure.security.EnableHawkbitManagedSecurityConfiguration;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Import;
+
+/**
+ * A {@link SpringBootApplication} annotated class with a main method to start.
+ * The minimal configuration for the stand alone hawkBit server.
+ *
+ */
+@SpringBootApplication
+@Import({ RepositoryApplicationConfiguration.class })
+@EnableHawkbitManagedSecurityConfiguration
+public class Start {
+
+    /**
+     * Main method to start the spring-boot application.
+     *
+     * @param args
+     *            the VM arguments.
+     */
+    public static void main(final String[] args) {
+        SpringApplication.run(Start.class, args);
+    }
+}
diff --git a/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/.gitignore b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/.gitignore
new file mode 100644
index 000000000..1cdd02b74
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/.gitignore
@@ -0,0 +1,2 @@
+/addons.scss
+/styles.css
diff --git a/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/customstyles/examplevariables.scss b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/customstyles/examplevariables.scss
new file mode 100644
index 000000000..6bf201f9c
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/customstyles/examplevariables.scss
@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+ 
+$dark-gray: #848484;
+
+//Example color change
+$hawkbit-primary-color: $dark-gray;
+$hawkbit-primary-color-light: #D8D8D8;
+$app-selection-item-selection-color: $dark-gray;
+$app-focus-color: $dark-gray;
+$app-selection-color: $dark-gray;
+$tag-text-color: $dark-gray;
+$tab-sheet-caption-color: $dark-gray;
+$table-details-tab-font-color: $dark-gray;
+$widget-caption-color: $dark-gray;
+$accordion-action-history-title-color: $dark-gray;
+$menu-title-bg-color: $dark-gray;
+$button-icon-color: $dark-gray;
\ No newline at end of file
diff --git a/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/images/profile-pic-57px.jpg b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/images/profile-pic-57px.jpg
new file mode 100644
index 000000000..d730cb5f6
Binary files /dev/null and b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/images/profile-pic-57px.jpg differ
diff --git a/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/layouts/footer.html b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/layouts/footer.html
new file mode 100644
index 000000000..f2ac781ba
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/layouts/footer.html
@@ -0,0 +1,29 @@
+<!--
+
+    Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+
+    All rights reserved. This program and the accompanying materials
+    are made available under the terms of the Eclipse Public License v1.0
+    which accompanies this distribution, and is available at
+    http://www.eclipse.org/legal/epl-v10.html
+
+-->
+<head>
+<style>
+.footer-content {
+	 margin-top: 20px ;
+}
+.doc-link {
+    color: #26547a !important;
+    text-decoration: none !important;
+}
+</style>
+</head>
+<footer>
+<div class="footer-content">
+<div style="color: #333; font-family: Helvetica Neue,Helvetica,Arial,sans-serif; font-size: 0.8em !important;line-height: 20px;">
+<!-- Footer text goes here -->
+<a class="doc-link" target="_blank" href="https://projects.eclipse.org/projects/iot.hawkbit">Eclipe hawkBit Project Page</a>
+</div>
+</div>
+</footer>
diff --git a/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/styles.scss b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/styles.scss
new file mode 100644
index 000000000..2407a73fb
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/resources/VAADIN/themes/exampletheme/styles.scss
@@ -0,0 +1,10 @@
+@import "../hawkbit/customstyles/hawkbitvariables";
+@import "customstyles/examplevariables";
+@import "../hawkbit/hawkbittheme";
+@import "addons";
+
+// This file prefixes all rules with the theme name to avoid causing conflicts with other themes.
+.exampletheme {
+  @include addons;
+  @include hawkbittheme;
+}
diff --git a/examples/hawkbit-custom-theme-example/src/main/resources/application.properties b/examples/hawkbit-custom-theme-example/src/main/resources/application.properties
new file mode 100644
index 000000000..3ffb51bd0
--- /dev/null
+++ b/examples/hawkbit-custom-theme-example/src/main/resources/application.properties
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License v1.0
+# which accompanies this distribution, and is available at
+# http://www.eclipse.org/legal/epl-v10.html
+#
+
+# UI demo account
+hawkbit.server.ui.demo.password=admin
+hawkbit.server.ui.demo.user=admin
+hawkbit.server.ui.demo.tenant=DEFAULT
+
+# UI help links
+hawkbit.server.ui.links.documentation.root=https://github.com/eclipse/hawkbit
diff --git a/hawkbit-repository/pom.xml b/hawkbit-repository/pom.xml
index 7259262de..b70e00f28 100644
--- a/hawkbit-repository/pom.xml
+++ b/hawkbit-repository/pom.xml
@@ -67,6 +67,10 @@
          <groupId>org.hibernate</groupId>
          <artifactId>hibernate-validator</artifactId>
       </dependency>
+      <dependency>
+         <groupId>javax.validation</groupId>
+         <artifactId>validation-api</artifactId>
+      </dependency>
       <dependency>
          <groupId>com.google.guava</groupId>
          <artifactId>guava</artifactId>
diff --git a/hawkbit-rest-api/pom.xml b/hawkbit-rest-api/pom.xml
index be9abafac..703d6caf3 100644
--- a/hawkbit-rest-api/pom.xml
+++ b/hawkbit-rest-api/pom.xml
@@ -24,7 +24,6 @@
       <dependency>
          <groupId>javax.validation</groupId>
          <artifactId>validation-api</artifactId>
-         <version>1.1.0.Final</version>
       </dependency>
       <dependency>
          <groupId>org.springframework.hateoas</groupId>
diff --git a/hawkbit-ui/src/main/resources/VAADIN/themes/hawkbit/images/profile-pic-300px.jpg b/hawkbit-ui/src/main/resources/VAADIN/themes/hawkbit/images/profile-pic-300px.jpg
deleted file mode 100644
index 664afaa35..000000000
Binary files a/hawkbit-ui/src/main/resources/VAADIN/themes/hawkbit/images/profile-pic-300px.jpg and /dev/null differ
diff --git a/pom.xml b/pom.xml
index f42236d07..0c3207c13 100644
--- a/pom.xml
+++ b/pom.xml
@@ -84,6 +84,7 @@
       <!-- Vaadin versions - END -->
 
       <!-- Misc libraries versions - START -->
+      <validation-api.version>1.1.0.Final</validation-api.version>
       <fest-assert.version>1.4</fest-assert.version>
       <org.easytesting.version>2.0M10</org.easytesting.version>
       <allure.version>1.4.22</allure.version>
@@ -419,6 +420,11 @@
          </dependency>
 
          <!-- Misc -->
+         <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+            <version>${validation-api.version}</version>
+         </dependency>
          <dependency>
             <groupId>javax.el</groupId>
             <artifactId>javax.el-api</artifactId>