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index 6dd20d51..a82432b7 100644
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+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="App.xaml.cs">
+      <DependentUpon>App.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="LocalizedStrings.cs" />
+    <Compile Include="Model\departments\ChairModel.cs" />
+    <Compile Include="Model\departments\DepartmentModel.cs" />
+    <Compile Include="Model\departments\DepartmentViewModel.cs" />
+    <Compile Include="Model\departments\FacultyModel.cs" />
+    <Compile Include="Model\Mensa\MenuModel.cs" />
+    <Compile Include="Model\Mensa\MenuWeekModel.cs" />
+    <Compile Include="Pages\campusmap\CampusMapPage.xaml.cs">
+      <DependentUpon>CampusMapPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\departments\DepartmentPage.xaml.cs">
+      <DependentUpon>DepartmentPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\lecture\LecturePage.xaml.cs">
+      <DependentUpon>LecturePage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Model\BaseModel.cs" />
+    <Compile Include="Model\BaseViewModel.cs" />
+    <Compile Include="Feed\Mensa\MensaFeed.cs" />
+    <Compile Include="Pages\Mensa\MensaPage.xaml.cs">
+      <DependentUpon>MensaPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\news\NewsPage.xaml.cs">
+      <DependentUpon>NewsPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\news\RSSItem.cs" />
+    <Compile Include="Pages\news\RSSNewsTemplate.xaml.cs">
+      <DependentUpon>RSSNewsTemplate.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\StartPage.xaml.cs">
+      <DependentUpon>StartPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\webmail\WebmailPage.xaml.cs">
+      <DependentUpon>WebmailPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Resources\AppResources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>AppResources.resx</DependentUpon>
+    </Compile>
+    <Compile Include="Resources\Constants.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Constants.resx</DependentUpon>
+    </Compile>
+    <Compile Include="Utility\Feed.cs" />
+    <Compile Include="Utility\FeedEventHandler.cs" />
+    <Compile Include="Utility\FileList.cs" />
+    <Compile Include="Utility\FileManager.cs" />
+    <Compile Include="Utility\Logger.cs" />
+    <Compile Include="Utility\RestApi.cs" />
+    <Compile Include="Utility\StringManager.cs" />
+    <Compile Include="Utility\URLList.cs" />
+    <Compile Include="Utility\XmlFeed.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ApplicationDefinition Include="App.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </ApplicationDefinition>
+    <Page Include="Pages\campusmap\CampusMapPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\departments\DepartmentPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\lecture\LecturePage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\Mensa\MensaPage.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Include="Pages\news\NewsPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\news\RSSNewsTemplate.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\StartPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\webmail\WebmailPage.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Assets\psd\holo_optionsbuttons.psd" />
+    <None Include="Assets\psd\iconbutton_effects2.psd" />
+    <None Include="packages.config" />
+    <None Include="Properties\AppManifest.xml" />
+    <None Include="Properties\WMAppManifest.xml">
+      <SubType>Designer</SubType>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Assets\AlignmentGrid.png" />
+    <Content Include="Assets\ApplicationIcon.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="Assets\icons\campus_159_dark.png" />
+    <Content Include="Assets\icons\campus_159_light.png" />
+    <Content Include="Assets\icons\departments_159_dark.png" />
+    <Content Include="Assets\icons\departments_159_light.png" />
+    <Content Include="Assets\icons\homework_159_dark.png" />
+    <Content Include="Assets\icons\homework_159_light.png" />
+    <Content Include="Assets\icons\link_159_dark.png" />
+    <Content Include="Assets\icons\link_159_light.png" />
+    <Content Include="Assets\icons\lectures_159_dark.png" />
+    <Content Include="Assets\icons\lectures_159_light.png" />
+    <Content Include="Assets\icons\mensa_159_dark.png" />
+    <Content Include="Assets\icons\mensa_159_light.png" />
+    <Content Include="Assets\icons\news_159_dark.png" />
+    <Content Include="Assets\icons\news_159_light.png" />
+    <Content Include="Assets\icons\openhours_159_dark.png" />
+    <Content Include="Assets\icons\openhours_159_light.png" />
+    <Content Include="Assets\icons\schedule_159_dark.png" />
+    <Content Include="Assets\icons\schedule_159_light.png" />
+    <Content Include="Assets\icons\student_council_159_dark.png" />
+    <Content Include="Assets\icons\student_council_159_light.png" />
+    <Content Include="Assets\icons\webmail_159_dark.png" />
+    <Content Include="Assets\icons\webmail_159_light.png" />
+    <Content Include="Assets\Tiles\FlipCycleTileLarge.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="Assets\Tiles\FlipCycleTileMedium.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="Assets\Tiles\FlipCycleTileSmall.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="Assets\Tiles\IconicTileMediumLarge.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="Assets\Tiles\IconicTileSmall.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+    <Content Include="README_FIRST.txt" />
+    <Content Include="Toolkit.Content\ApplicationBar.Cancel.png" />
+    <Content Include="Toolkit.Content\ApplicationBar.Check.png" />
+    <Content Include="Toolkit.Content\ApplicationBar.Delete.png" />
+    <Content Include="Toolkit.Content\ApplicationBar.Select.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="Resources\AppResources.resx">
+      <Generator>PublicResXFileCodeGenerator</Generator>
+      <LastGenOutput>AppResources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Resources\Constants.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Constants.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="Microsoft.Phone.Controls, Version=8.0.0.0, Culture=neutral, PublicKeyToken=24eec0d8c86cda1e, processorArchitecture=MSIL" />
+    <Reference Include="Microsoft.Phone.Controls.Toolkit">
+      <HintPath>..\packages\WPtoolkit.4.2012.10.30\lib\wp8\Microsoft.Phone.Controls.Toolkit.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup />
+  <Import Project="$(MSBuildExtensionsPath)\Microsoft\$(TargetFrameworkIdentifier)\$(TargetFrameworkVersion)\Microsoft.$(TargetFrameworkIdentifier).$(TargetFrameworkVersion).Overrides.targets" />
+  <Import Project="$(MSBuildExtensionsPath)\Microsoft\$(TargetFrameworkIdentifier)\$(TargetFrameworkVersion)\Microsoft.$(TargetFrameworkIdentifier).CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+  <ProjectExtensions />
 </Project>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml b/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml
index 04b6f0e8..e2c4fe4f 100644
--- a/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml
+++ b/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml
@@ -1,44 +1,44 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Deployment xmlns="http://schemas.microsoft.com/windowsphone/2012/deployment" AppPlatformVersion="8.0">
-  <DefaultLanguage xmlns="" code="de-DE" />
-  <App xmlns="" ProductID="{120b88cc-f3f0-4c5a-a3fd-c26e835338cc}" Title="CampusAppWP8" RuntimeType="Silverlight" Version="1.0.0.0" Genre="apps.normal" Author="CampusAppWP8 author" Description="Die BTU-CampusApp für WP8" Publisher="CampusAppWP8" PublisherID="{3511cc48-91b0-4ffb-9023-b69a81021a46}">
-    <IconPath IsRelative="true" IsResource="false">Assets\ApplicationIcon.png</IconPath>
-    <Capabilities>
-      <Capability Name="ID_CAP_NETWORKING" />
-      <Capability Name="ID_CAP_SENSORS" />
-      <Capability Name="ID_CAP_WEBBROWSERCOMPONENT" />
-      <Capability Name="ID_CAP_PROXIMITY" />
-      <Capability Name="ID_CAP_MAP" />
-      <Capability Name="ID_CAP_LOCATION" />
-      <Capability Name="ID_CAP_ISV_CAMERA" />
-    </Capabilities>
-    <Tasks>
-      <DefaultTask Name="_default" NavigationPage="pages/mensa/MensaPage.xaml" />
-    </Tasks>
-    <Tokens>
-      <PrimaryToken TokenID="CampusAppWP8Token" TaskName="_default">
-        <TemplateFlip>
-          <SmallImageURI IsRelative="true" IsResource="false">Assets\Tiles\FlipCycleTileSmall.png</SmallImageURI>
-          <Count>0</Count>
-          <BackgroundImageURI IsRelative="true" IsResource="false">Assets\Tiles\FlipCycleTileMedium.png</BackgroundImageURI>
-          <Title>CampusAppWP8</Title>
-          <BackContent>
-          </BackContent>
-          <BackBackgroundImageURI>
-          </BackBackgroundImageURI>
-          <BackTitle>
-          </BackTitle>
-          <DeviceLockImageURI>
-          </DeviceLockImageURI>
-          <HasLarge>
-          </HasLarge>
-        </TemplateFlip>
-      </PrimaryToken>
-    </Tokens>
-    <ScreenResolutions>
-      <ScreenResolution Name="ID_RESOLUTION_WVGA" />
-      <ScreenResolution Name="ID_RESOLUTION_WXGA" />
-      <ScreenResolution Name="ID_RESOLUTION_HD720P" />
-    </ScreenResolutions>
-  </App>
+<?xml version="1.0" encoding="utf-8"?>
+<Deployment xmlns="http://schemas.microsoft.com/windowsphone/2012/deployment" AppPlatformVersion="8.0">
+  <DefaultLanguage xmlns="" code="de-DE" />
+  <App xmlns="" ProductID="{120b88cc-f3f0-4c5a-a3fd-c26e835338cc}" Title="CampusAppWP8" RuntimeType="Silverlight" Version="1.0.0.0" Genre="apps.normal" Author="CampusAppWP8 author" Description="Die BTU-CampusApp für WP8" Publisher="CampusAppWP8" PublisherID="{3511cc48-91b0-4ffb-9023-b69a81021a46}">
+    <IconPath IsRelative="true" IsResource="false">Assets\ApplicationIcon.png</IconPath>
+    <Capabilities>
+      <Capability Name="ID_CAP_NETWORKING" />
+      <Capability Name="ID_CAP_SENSORS" />
+      <Capability Name="ID_CAP_WEBBROWSERCOMPONENT" />
+      <Capability Name="ID_CAP_PROXIMITY" />
+      <Capability Name="ID_CAP_MAP" />
+      <Capability Name="ID_CAP_LOCATION" />
+      <Capability Name="ID_CAP_ISV_CAMERA" />
+    </Capabilities>
+    <Tasks>
+      <DefaultTask Name="_default" NavigationPage="pages/StartPage.xaml" />
+    </Tasks>
+    <Tokens>
+      <PrimaryToken TokenID="CampusAppWP8Token" TaskName="_default">
+        <TemplateFlip>
+          <SmallImageURI IsRelative="true" IsResource="false">Assets\Tiles\FlipCycleTileSmall.png</SmallImageURI>
+          <Count>0</Count>
+          <BackgroundImageURI IsRelative="true" IsResource="false">Assets\Tiles\FlipCycleTileMedium.png</BackgroundImageURI>
+          <Title>CampusAppWP8</Title>
+          <BackContent>
+          </BackContent>
+          <BackBackgroundImageURI>
+          </BackBackgroundImageURI>
+          <BackTitle>
+          </BackTitle>
+          <DeviceLockImageURI>
+          </DeviceLockImageURI>
+          <HasLarge>
+          </HasLarge>
+        </TemplateFlip>
+      </PrimaryToken>
+    </Tokens>
+    <ScreenResolutions>
+      <ScreenResolution Name="ID_RESOLUTION_WVGA" />
+      <ScreenResolution Name="ID_RESOLUTION_WXGA" />
+      <ScreenResolution Name="ID_RESOLUTION_HD720P" />
+    </ScreenResolutions>
+  </App>
 </Deployment>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml
index 42b78fc9..25912698 100644
--- a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml
@@ -1,136 +1,148 @@
-<phone:PhoneApplicationPage
-    x:Class="CampusAppWP8.Pages.StartPage"
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
-    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-    FontFamily="{StaticResource PhoneFontFamilyNormal}"
-    FontSize="{StaticResource PhoneFontSizeNormal}"
-    Foreground="{StaticResource PhoneForegroundBrush}"
-    SupportedOrientations="PortraitOrLandscape" Orientation="Portrait"
-    OrientationChanged="PhoneApplicationPage_OrientationChanged"
-    mc:Ignorable="d"
-    shell:SystemTray.IsVisible="True">
-
-    <!--LayoutRoot ist das Stammraster, in dem alle anderen Seiteninhalte platziert werden-->
-    <Grid x:Name="LayoutRoot" Background="Transparent">
-        <Grid.RowDefinitions>
-            <RowDefinition Height="Auto"/>
-            <RowDefinition Height="*"/>
-        </Grid.RowDefinitions>
-
-        <!--TitlePanel enthält den Namen der Anwendung und den Seitentitel-->
-        <StackPanel Grid.Row="0" Margin="12,17,0,28">
-            <TextBlock Text="{Binding Path=LocalizedResources.ApplicationTitle, Source={StaticResource LocalizedStrings}}" Style="{StaticResource PhoneTextNormalStyle}"/>
-        </StackPanel>
-
-        <!--ContentPanel - zusätzliche Inhalte hier platzieren-->
-        <Grid x:Name="ContentPanel" Margin="12,0,0,0" Grid.Row="1">
-            <Grid.RowDefinitions>
-                <RowDefinition Height="*"/>
-                <RowDefinition Height="*"/>
-                <RowDefinition Height="*"/>
-                <RowDefinition Height="auto"/>
-            </Grid.RowDefinitions>
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="*"/>
-                <ColumnDefinition Width="*"/>
-                <ColumnDefinition Width="*"/>
-                <ColumnDefinition Width="auto"/>
-            </Grid.ColumnDefinitions>
-
-            <!-- Row 0 -->
-            <Button Name="TimeTableAppButton" Grid.Row="0" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.TimeTableApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button Name="LectureAppButton" Grid.Row="0" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.LectureApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button Name="NewsAppButton" Grid.Row="0" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100"/>
-                    <TextBlock Text="{Binding Path=LocalizedResources.NewsApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <!-- Row 1 -->
-            <Button Name="MensaAppButton" Grid.Row="1" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.MensaApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button Name="CampusMapAppButton" Grid.Row="1" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.CampusMapApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button Name="HomeworkAppButton" Grid.Row="1" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.HomeworkApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <!-- Row 2 -->
-            <Button Name="DepartmentAppButton" Grid.Row="2" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel  Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.DepartmentApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button  Name="EventAppButton" Grid.Row="2" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel  Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.EventApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button Name="MailAppButton" Grid.Row="2" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100"/>
-                    <TextBlock Text="{Binding Path=LocalizedResources.MailApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <!-- Row 3 -->
-            <Button Name="OpenHoursAppButton" Grid.Row="3" Grid.Column="0"  BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100"/>
-                    <TextBlock Text="{Binding Path=LocalizedResources.OpenHoursApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button Name="OSAAppButton" Grid.Row="3" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.OSAApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-
-            <Button Name="LinkAppButton" Grid.Row="3" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
-                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
-                    <Image Source="/Assets/ApplicationIcon.png" Height="100" />
-                    <TextBlock Text="{Binding Path=LocalizedResources.LinkApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
-                </StackPanel>
-            </Button>
-        </Grid>
-
-        <!--      <Image Source="/Assets/AlignmentGrid.png" VerticalAlignment="Top" Height="800" Width="480" Margin="0,-32,0,0" Grid.Row="0" Grid.RowSpan="2" IsHitTestVisible="False" /> -->
-    </Grid>
-
+<phone:PhoneApplicationPage
+    x:Class="CampusAppWP8.Pages.StartPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
+    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    FontFamily="{StaticResource PhoneFontFamilyNormal}"
+    FontSize="{StaticResource PhoneFontSizeNormal}"
+    Foreground="{StaticResource PhoneForegroundBrush}"
+    SupportedOrientations="PortraitOrLandscape" Orientation="Portrait"
+    OrientationChanged="PhoneApplicationPage_OrientationChanged"
+    mc:Ignorable="d"
+    shell:SystemTray.IsVisible="True">
+
+    <!--LayoutRoot ist das Stammraster, in dem alle anderen Seiteninhalte platziert werden-->
+    <Grid x:Name="LayoutRoot" Background="Transparent">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+
+        <!--TitlePanel enthält den Namen der Anwendung und den Seitentitel-->
+        <StackPanel Grid.Row="0" Margin="12,17,0,28">
+            <TextBlock Text="{Binding Path=LocalizedResources.ApplicationTitle, Source={StaticResource LocalizedStrings}}" Style="{StaticResource PhoneTextNormalStyle}"/>
+        </StackPanel>
+
+        <!--ContentPanel - zusätzliche Inhalte hier platzieren-->
+        <Grid x:Name="ContentPanel" Margin="12,0,0,0" Grid.Row="1">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="*"/>
+                <RowDefinition Height="*"/>
+                <RowDefinition Height="*"/>
+                <RowDefinition Height="auto"/>
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="auto"/>
+            </Grid.ColumnDefinitions>
+
+            <!-- Row 0 -->
+            <Button Name="TimeTableAppButton" Grid.Row="0" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkTimetable" Source="/Assets/icons/schedule_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightTimetable" Source="/Assets/icons/schedule_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.TimeTableApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button Name="LectureAppButton" Grid.Row="0" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkLectures" Source="/Assets/icons/lectures_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightLectures" Source="/Assets/icons/lectures_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.LectureApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button Name="NewsAppButton" Grid.Row="0" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkNews" Source="/Assets/icons/news_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightNews" Source="/Assets/icons/news_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.NewsApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <!-- Row 1 -->
+            <Button Name="MensaAppButton" Grid.Row="1" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkMensa" Source="/Assets/icons/mensa_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightMensa" Source="/Assets/icons/mensa_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.MensaApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button Name="CampusMapAppButton" Grid.Row="1" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkCampus" Source="/Assets/icons/campus_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightCampus" Source="/Assets/icons/campus_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.CampusMapApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button Name="HomeworkAppButton" Grid.Row="1" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkHomework" Source="/Assets/icons/homework_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightHomework" Source="/Assets/icons/homework_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.HomeworkApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <!-- Row 2 -->
+            <Button Name="DepartmentAppButton" Grid.Row="2" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel  Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkDepartments" Source="/Assets/icons/departments_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightDepartments" Source="/Assets/icons/departments_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.DepartmentApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button  Name="EventAppButton" Grid.Row="2" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel  Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkEvents" Source="/Assets/icons/news_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightEvents" Source="/Assets/icons/news_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.EventApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button Name="MailAppButton" Grid.Row="2" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkWebmail" Source="/Assets/icons/webmail_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightWebmail" Source="/Assets/icons/webmail_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.MailApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <!-- Row 3 -->
+            <Button Name="OpenHoursAppButton" Grid.Row="3" Grid.Column="0"  BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkOpenhours" Source="/Assets/icons/openhours_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightOpenhours" Source="/Assets/icons/openhours_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.OpenHoursApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button Name="OSAAppButton" Grid.Row="3" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkStudentcouncil" Source="/Assets/icons/student_council_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightStudentcouncil" Source="/Assets/icons/student_council_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.OSAApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+
+            <Button Name="LinkAppButton" Grid.Row="3" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+                <StackPanel Height="auto" Margin="-12,-12,-12,-12">
+                    <Image x:Name="ImgDarkLink" Source="/Assets/icons/link_159_dark.png" Height="100" Visibility="Collapsed"/>
+                    <Image x:Name="ImgLightLink" Source="/Assets/icons/link_159_light.png" Height="100" Visibility="Visible"/>
+                    <TextBlock Text="{Binding Path=LocalizedResources.LinkApp_Title, Source={StaticResource LocalizedStrings}}" Height="Auto" VerticalAlignment="Center" HorizontalAlignment="Center" />
+                </StackPanel>
+            </Button>
+        </Grid>
+
+        <!--      <Image Source="/Assets/AlignmentGrid.png" VerticalAlignment="Top" Height="800" Width="480" Margin="0,-32,0,0" Grid.Row="0" Grid.RowSpan="2" IsHitTestVisible="False" /> -->
+    </Grid>
+
 </phone:PhoneApplicationPage>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs
index fb12527f..3a788d23 100644
--- a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs
@@ -1,53 +1,85 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Navigation;
-using Microsoft.Phone.Controls;
-using Microsoft.Phone.Shell;
-using Windows.UI.Input;
-
-namespace CampusAppWP8.Pages
-{
-    public partial class StartPage : PhoneApplicationPage
-    {
-        public StartPage()
-        {
-            InitializeComponent();
-        }
-
-        private void PhoneApplicationPage_OrientationChanged(object sender, OrientationChangedEventArgs e)
-        {
-            // Switch the placement of the buttons based on an orientation change.
-            if (this.Orientation == PageOrientation.LandscapeLeft || this.Orientation == PageOrientation.LandscapeRight)
-            {
-                OpenHoursAppButton.SetValue(Grid.RowProperty, 0);
-                OpenHoursAppButton.SetValue(Grid.ColumnProperty, 3);
-
-                OSAAppButton.SetValue(Grid.RowProperty, 1);
-                OSAAppButton.SetValue(Grid.ColumnProperty, 3);
-
-                LinkAppButton.SetValue(Grid.RowProperty, 2);
-                LinkAppButton.SetValue(Grid.ColumnProperty, 3);
-                ContentPanel.Margin = new Thickness(12, -24, 0, 0);
-          
-            }
-            // If not in portrait, move buttonList content to visible row and column.
-            else
-            {
-                OpenHoursAppButton.SetValue(Grid.RowProperty, 3);
-                OpenHoursAppButton.SetValue(Grid.ColumnProperty, 0);
-
-                OSAAppButton.SetValue(Grid.RowProperty, 3);
-                OSAAppButton.SetValue(Grid.ColumnProperty, 1);
-
-                LinkAppButton.SetValue(Grid.RowProperty, 3);
-                LinkAppButton.SetValue(Grid.ColumnProperty, 2);
-                ContentPanel.Margin = new Thickness(12, 0, 0, 0);
-
-            }
-        }
-    }
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Navigation;
+using Microsoft.Phone.Controls;
+using Microsoft.Phone.Shell;
+using Windows.UI.Input;
+
+namespace CampusAppWP8.Pages
+{
+    public partial class StartPage : PhoneApplicationPage
+    {
+        public StartPage()
+        {
+            InitializeComponent();
+
+            if ((Visibility)Application.Current.Resources["PhoneDarkThemeVisibility"] == Visibility.Visible)
+                this.SetIconThemeToDark();
+        }
+
+        private void PhoneApplicationPage_OrientationChanged(object sender, OrientationChangedEventArgs e)
+        {
+            // Switch the placement of the buttons based on an orientation change.
+            if (this.Orientation == PageOrientation.LandscapeLeft || this.Orientation == PageOrientation.LandscapeRight)
+            {
+                OpenHoursAppButton.SetValue(Grid.RowProperty, 0);
+                OpenHoursAppButton.SetValue(Grid.ColumnProperty, 3);
+
+                OSAAppButton.SetValue(Grid.RowProperty, 1);
+                OSAAppButton.SetValue(Grid.ColumnProperty, 3);
+
+                LinkAppButton.SetValue(Grid.RowProperty, 2);
+                LinkAppButton.SetValue(Grid.ColumnProperty, 3);
+                ContentPanel.Margin = new Thickness(12, -24, 0, 0);
+          
+            }
+            // If not in portrait, move buttonList content to visible row and column.
+            else
+            {
+                OpenHoursAppButton.SetValue(Grid.RowProperty, 3);
+                OpenHoursAppButton.SetValue(Grid.ColumnProperty, 0);
+
+                OSAAppButton.SetValue(Grid.RowProperty, 3);
+                OSAAppButton.SetValue(Grid.ColumnProperty, 1);
+
+                LinkAppButton.SetValue(Grid.RowProperty, 3);
+                LinkAppButton.SetValue(Grid.ColumnProperty, 2);
+                ContentPanel.Margin = new Thickness(12, 0, 0, 0);
+
+            }
+        }
+
+        private void SetIconThemeToDark()
+        {
+            this.ImgLightCampus.Visibility = Visibility.Collapsed;
+            this.ImgLightDepartments.Visibility = Visibility.Collapsed;
+            this.ImgLightEvents.Visibility = Visibility.Collapsed;
+            this.ImgLightHomework.Visibility = Visibility.Collapsed;
+            this.ImgLightLectures.Visibility = Visibility.Collapsed;
+            this.ImgLightLink.Visibility = Visibility.Collapsed;
+            this.ImgLightMensa.Visibility = Visibility.Collapsed;
+            this.ImgLightNews.Visibility = Visibility.Collapsed;
+            this.ImgLightOpenhours.Visibility = Visibility.Collapsed;
+            this.ImgLightStudentcouncil.Visibility = Visibility.Collapsed;
+            this.ImgLightTimetable.Visibility = Visibility.Collapsed;
+            this.ImgLightWebmail.Visibility = Visibility.Collapsed;
+
+            this.ImgDarkCampus.Visibility = Visibility.Visible;
+            this.ImgDarkDepartments.Visibility = Visibility.Visible;
+            this.ImgDarkEvents.Visibility = Visibility.Visible;
+            this.ImgDarkHomework.Visibility = Visibility.Visible;
+            this.ImgDarkLectures.Visibility = Visibility.Visible;
+            this.ImgDarkLink.Visibility = Visibility.Visible;
+            this.ImgDarkMensa.Visibility = Visibility.Visible;
+            this.ImgDarkNews.Visibility = Visibility.Visible;
+            this.ImgDarkOpenhours.Visibility = Visibility.Visible;
+            this.ImgDarkStudentcouncil.Visibility = Visibility.Visible;
+            this.ImgDarkTimetable.Visibility = Visibility.Visible;
+            this.ImgDarkWebmail.Visibility = Visibility.Visible;
+        }
+    }
 }
\ No newline at end of file