diff --git a/bibtalk/bib-talk/Icons/logo - Copy.png b/bibtalk/bib-talk/Icons/logo - Copy.png
new file mode 100644
index 0000000..b7ff500
Binary files /dev/null and b/bibtalk/bib-talk/Icons/logo - Copy.png differ
diff --git a/bibtalk/bib-talk/Repository/LoginDatabase.cs b/bibtalk/bib-talk/Repository/LoginDatabase.cs
index bc79991..ee2fd9c 100644
--- a/bibtalk/bib-talk/Repository/LoginDatabase.cs
+++ b/bibtalk/bib-talk/Repository/LoginDatabase.cs
@@ -23,7 +23,7 @@ namespace bib_talk.Repository
         {
             string username = loginWindow.usernbox.Text;
             string password = loginWindow.passwordbox.Password;
-            var loginData = new { Username = username, Password = password, Email = "", Birthday = "", IsOnline = "" };
+            var loginData = new { Username = username, Password = password, Email = "", Birthday = "", IsOnline = ""};
             string json = JsonConvert.SerializeObject(loginData);
 
             using (var client = new HttpClient())
diff --git a/bibtalk/bib-talk/Repository/MainWindowDatabase.cs b/bibtalk/bib-talk/Repository/MainWindowDatabase.cs
index c4dc2ec..43f4931 100644
--- a/bibtalk/bib-talk/Repository/MainWindowDatabase.cs
+++ b/bibtalk/bib-talk/Repository/MainWindowDatabase.cs
@@ -1,6 +1,7 @@
 using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Net.Http;
 using System.Text;
@@ -71,12 +72,18 @@ namespace bib_talk.Repository
                 if (response.IsSuccessStatusCode)
                 {
                     var responseContent = await response.Content.ReadAsStringAsync();
+                    
                     var onlineUsers = JsonConvert.DeserializeObject<List<User>>(responseContent);
+                    
+
                     mainWindow.onlineUsersListBox.ItemsSource = onlineUsers;
                 }
             }
         }
 
+
+
+
         public async void LogoutUser()
         {
             using (var client = new HttpClient())
diff --git a/bibtalk/bib-talk/UI/Login.xaml b/bibtalk/bib-talk/UI/Login.xaml
index 547a489..8a20353 100644
--- a/bibtalk/bib-talk/UI/Login.xaml
+++ b/bibtalk/bib-talk/UI/Login.xaml
@@ -62,7 +62,7 @@
     <Border CornerRadius="15" BorderThickness="20" BorderBrush="#FF282828">
         <Grid Margin="-10,-10,-10,-10" Background="#FF282828">
             <!-- Draggable Area -->
-            <Image HorizontalAlignment="Left" Height="450" Margin="237,-162,0,0" VerticalAlignment="Top" Width="591" Source="/logo.png"/>
+            <Image HorizontalAlignment="Left" Height="450" Margin="237,-162,0,0" VerticalAlignment="Top" Width="591" Source="/UI/logo.png"/>
 
             <Grid VerticalAlignment="Top" Height="45" Background="Transparent" MouseLeftButtonDown="DraggableArea_MouseLeftButtonDown" Margin="0,-21,0,0">
 
diff --git a/bibtalk/bib-talk/UI/Logo_bib-Talk.png b/bibtalk/bib-talk/UI/Logo_bib-Talk.png
new file mode 100644
index 0000000..00fbd91
Binary files /dev/null and b/bibtalk/bib-talk/UI/Logo_bib-Talk.png differ
diff --git a/bibtalk/bib-talk/UI/MainWindow.xaml b/bibtalk/bib-talk/UI/MainWindow.xaml
index 9c1e661..15e6ac7 100644
--- a/bibtalk/bib-talk/UI/MainWindow.xaml
+++ b/bibtalk/bib-talk/UI/MainWindow.xaml
@@ -99,11 +99,9 @@
 
 
                 <Rectangle Stroke="#FF6332A0" Fill="#FF6332A0" Width="682"/>
-                <TextBlock Text="Name" Margin="108,18,134,18" FontSize="40"  Foreground="White" />
-                <Image Source="/Icons/PICA.jpg" Width="80" Height="80" Stretch="Fill" Margin="10,8,592,7">
-                    <Image.Clip>
-                        <EllipseGeometry Center="40,40" RadiusX="40" RadiusY="40"/>
-                    </Image.Clip>
+                <TextBlock Text="Global Chat" Margin="108,25,206,21" FontSize="40"  Foreground="White" />
+                <Image Source="/UI/logo - Copy.png" Stretch="Fill" Margin="-55,-118,499,0">
+
                 </Image>
                 <Button Content="⋮" HorizontalAlignment="Left" Margin="638,8,0,0" VerticalAlignment="Top" Width="19" Height="70" Background="{x:Null}" BorderBrush="{x:Null}" Foreground="White" FontSize="58" Click="ChatFenster_Click"/>
             </Grid>
@@ -139,7 +137,7 @@
                     <DataTemplate>
                         <StackPanel Orientation="Horizontal" Width="205" Height="60">
                             <Ellipse Width="10" Height="10" Fill="Green" Margin="5"/>
-                            <Image Source="/Icons/PICA.jpg" Width="50" Height="50" Stretch="Fill">
+                            <Image Source="{Binding ProfileImagePath}" Width="50" Height="50" Stretch="Fill">
                                 <Image.Clip>
                                     <EllipseGeometry Center="25,25" RadiusX="25" RadiusY="25"/>
                                 </Image.Clip>
@@ -149,7 +147,7 @@
                     </DataTemplate>
                 </ListBox.ItemTemplate>
             </ListBox>
-            <TextBlock HorizontalAlignment="Left" x:Name="loggedinuser" Margin="247,113,0,0" TextWrapping="Wrap" Text="xxxx" VerticalAlignment="Top" Height="84" Width="46" Foreground="White" RenderTransformOrigin="0.6,0.591"/>
+            <TextBlock HorizontalAlignment="Left" x:Name="loggedinuser" Margin="0,-3,0,0" TextWrapping="Wrap" Text="xxxx" VerticalAlignment="Top" Height="20" Width="184" Foreground="White" RenderTransformOrigin="0.6,0.591"/>
             <ListBox x:Name="chatlistbox" Margin="298,112,0,50" d:ItemsSource="{d:SampleData ItemCount=5}" Background="#FF323134" BorderBrush="{x:Null}" Foreground="#FF6332A0" ScrollViewer.VerticalScrollBarVisibility="Hidden" ScrollViewer.HorizontalScrollBarVisibility="Hidden" Grid.ColumnSpan="4" Grid.RowSpan="2">
                 <ListBox.ItemTemplate>
                     <DataTemplate>
@@ -175,6 +173,7 @@
                          Foreground="White"
                          SelectionBrush="#FF6332A0" KeyDown="messageBOX_KeyDown" Grid.ColumnSpan="4" Grid.Row="1"/>
             <Button x:Name="weiterbutton" Click="send_Click" Content="Weiter" Foreground="White"  Background="#FF6332A0" BorderThickness="0" Margin="44,346,10,10" BorderBrush="{x:Null}" Style="{StaticResource NoHoverButtonStyle}" RenderTransformOrigin="0.279,0.633" Grid.Column="3" Grid.Row="1"/>
+            <Button x:Name="uplaodpb" Click="uploadpbclick" Content="Upload" Foreground="White"  Background="#FF6332A0" BorderThickness="0" Margin="10,351,574,5" BorderBrush="{x:Null}" Style="{StaticResource NoHoverButtonStyle}" RenderTransformOrigin="0.279,0.633" Grid.Row="1"/>
 
 
 
diff --git a/bibtalk/bib-talk/UI/MainWindow.xaml.cs b/bibtalk/bib-talk/UI/MainWindow.xaml.cs
index 82eb8f3..e0eaa17 100644
--- a/bibtalk/bib-talk/UI/MainWindow.xaml.cs
+++ b/bibtalk/bib-talk/UI/MainWindow.xaml.cs
@@ -1,8 +1,10 @@
 using bib_talk.Repository;
+using Microsoft.Win32;
 using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Globalization;
+using System.IO;
 using System.Net.Http;
 using System.Text;
 using System.Threading.Tasks;
@@ -22,7 +24,7 @@ namespace bib_talk
         private DispatcherTimer _timer;
         public string loggedinUser;
         private bool isFirstLoad = true;
-
+     
         public MainWindow()
         {
             InitializeComponent();
@@ -130,8 +132,41 @@ namespace bib_talk
         {
 
         }
+        private async void uploadpbclick(object sender, RoutedEventArgs e)
+        {
+            OpenFileDialog openFileDialog = new OpenFileDialog();
+            openFileDialog.Filter = "Image files (*.jpg, *.jpeg, *.png, *.gif) | *.jpg; *.jpeg; *.png; *.gif";
+            if (openFileDialog.ShowDialog() == true)
+            {
+                string filePath = openFileDialog.FileName;
+                await UploadProfileImage(filePath);
+            }
+        }
+
+        private async Task UploadProfileImage(string filePath)
+        {
+            using (var client = new HttpClient())
+            {
+                var form = new MultipartFormDataContent();
+                var stream = File.OpenRead(filePath);
+                form.Add(new StreamContent(stream), "file", Path.GetFileName(filePath));
+
+                var response = await client.PostAsync($"http://daddypig.dns.navy:5114/api/users/upload-profile-image?username={loggedinUser}", form);
+                if (response.IsSuccessStatusCode)
+                {
+                    MessageBox.Show("Profilbild erfolgreich hochgeladen");
+                }
+                else
+                {
+                    MessageBox.Show("Fehler beim Hochladen des Profilbilds");
+                }
+            }
+        }
     }
 
+
+    
+
     public class Message
     {
         public int Id { get; set; }
@@ -153,5 +188,6 @@ namespace bib_talk
         public string Email { get; set; }
         public string Birthday { get; set; }
         public string IsOnline { get; set; }
+        public string ProfileImagePath { get; set; }
     }
 }
diff --git a/bibtalk/bib-talk/UI/logo - Copy.png b/bibtalk/bib-talk/UI/logo - Copy.png
new file mode 100644
index 0000000..b7ff500
Binary files /dev/null and b/bibtalk/bib-talk/UI/logo - Copy.png differ
diff --git a/bibtalk/bib-talk/UI/logo.png b/bibtalk/bib-talk/UI/logo.png
new file mode 100644
index 0000000..b7ff500
Binary files /dev/null and b/bibtalk/bib-talk/UI/logo.png differ
diff --git a/bibtalk/bib-talk/bib-talk.csproj b/bibtalk/bib-talk/bib-talk.csproj
index 5370b4f..0d91ae4 100644
--- a/bibtalk/bib-talk/bib-talk.csproj
+++ b/bibtalk/bib-talk/bib-talk.csproj
@@ -12,6 +12,9 @@
     <None Remove="logo.png" />
     <None Remove="Logo_bib-Talk.png" />
     <None Remove="PICA.jpg" />
+    <None Remove="UI\logo - Copy.png" />
+    <None Remove="UI\logo.png" />
+    <None Remove="UI\Logo_bib-Talk.png" />
   </ItemGroup>
 
   <ItemGroup>
@@ -22,6 +25,9 @@
     <Resource Include="Icons\logo.png" />
     <Resource Include="Icons\Logo_bib-Talk.png" />
     <Resource Include="Icons\PICA.jpg" />
+    <Resource Include="UI\logo - Copy.png" />
+    <Resource Include="UI\logo.png" />
+    <Resource Include="UI\Logo_bib-Talk.png" />
   </ItemGroup>
 
 </Project>