diff --git a/Assets/dotsanimation1.webm b/Assets/dotsanimation1.webm
new file mode 100644
index 0000000..e59b91e
Binary files /dev/null and b/Assets/dotsanimation1.webm differ
diff --git a/Assets/logo_empty.png b/Assets/logo_empty.png
new file mode 100644
index 0000000..6a48a00
Binary files /dev/null and b/Assets/logo_empty.png differ
diff --git a/src/Constants.cs b/src/Constants.cs
index cdb17ae..29d75cc 100644
--- a/src/Constants.cs
+++ b/src/Constants.cs
@@ -9,7 +9,8 @@ namespace Dots;
 public class Constants
 {
     public const string AppName = "Dots";
-    public const string InstalledSdkSKey = "Installed-Sdks-Key";
+    public const string InstalledSdkSKey = "installed-sdks-key";
+    public const string LastCheckedKey = "last-checked";
 #if MACCATALYST
     public const string UninstallerPath = "Package Cache";
     public const string InstallerScript = "https://dotnet.microsoft.com/download/dotnet/scripts/v1/dotnet-install.sh";
diff --git a/src/Data/ReleaseIndex.cs b/src/Data/ReleaseIndex.cs
index ed1440f..48ce45c 100644
--- a/src/Data/ReleaseIndex.cs
+++ b/src/Data/ReleaseIndex.cs
@@ -46,11 +46,11 @@ public class ReleaseIndex
     public Uri ReleasesJson { get; set; }
 }
 
-public enum Product { Net, NetCore };
+public enum Product { Net, NetCore, Undefined };
 
-public enum ReleaseType { Lts, Sts };
+public enum ReleaseType { Lts, Sts, Undefined };
 
-public enum SupportPhase { Active, Eol, Preview };
+public enum SupportPhase { Active, Eol, Preview, Undefined };
 
 
 public class ProductEnumConverter : JsonConverter<Product>
@@ -61,7 +61,7 @@ public override Product Read(ref Utf8JsonReader reader, Type typeToConvert, Json
         {
             ".NET" => Product.Net,
             ".NET Core" => Product.NetCore,
-            _ => throw new JsonException()
+            _ => Product.Undefined
         };
     }
 
@@ -71,7 +71,7 @@ public override void Write(Utf8JsonWriter writer, Product value, JsonSerializerO
         {
             Product.Net => ".NET",
             Product.NetCore => ".NET Core",
-            _ => throw new JsonException()
+            _ => ""
         });
     }
 }
@@ -84,7 +84,7 @@ public override ReleaseType Read(ref Utf8JsonReader reader, Type typeToConvert,
         {
             "lts" => ReleaseType.Lts,
             "sts" => ReleaseType.Sts,
-            _ => throw new JsonException()
+            _ => ReleaseType.Undefined
         };
     }
 
@@ -94,7 +94,7 @@ public override void Write(Utf8JsonWriter writer, ReleaseType value, JsonSeriali
         {
             ReleaseType.Lts => "lts",
             ReleaseType.Sts => "sts",
-            _ => throw new JsonException()
+            _ => ""
         });
     }
 }
@@ -108,7 +108,7 @@ public override SupportPhase Read(ref Utf8JsonReader reader, Type typeToConvert,
             "preview" => SupportPhase.Preview,
             "active" => SupportPhase.Active,
             "eol" => SupportPhase.Eol,
-            _ => throw new JsonException()
+            _ => SupportPhase.Undefined
         };
     }
 
@@ -119,7 +119,7 @@ public override void Write(Utf8JsonWriter writer, SupportPhase value, JsonSerial
             SupportPhase.Preview => "preview",
             SupportPhase.Active => "active",
             SupportPhase.Eol => "eol",
-            _ => throw new JsonException()
+            _ => ""
         });
     }
 }
diff --git a/src/MainPage.xaml b/src/MainPage.xaml
index deb3758..31c0892 100644
--- a/src/MainPage.xaml
+++ b/src/MainPage.xaml
@@ -629,15 +629,28 @@
                 </Border>
             </Grid>
         </Grid>
+        <Border
+            IsVisible="{Binding IsBusy}"      
+            Padding="0"
+            StrokeThickness="0"
+            Grid.RowSpan="2">
+            <Border.Background>
+                <RadialGradientBrush>
+                    <GradientStopCollection>
+                        <GradientStop Color="{StaticResource BackgroundSubtle}" Offset="0" />
+                        <GradientStop Color="#aa605d64" Offset="1" />
+                    </GradientStopCollection>
+                </RadialGradientBrush>
+            </Border.Background>
         <VerticalStackLayout
-            IsVisible="{Binding IsBusy}"
             x:Name="LoadingPanel"
-            Grid.Row="1"
+            BackgroundColor="{StaticResource BackgroundSubtle}"
             HorizontalOptions="Center"
             VerticalOptions="Center">
             <WebView
                 x:Name="AnimationView"
                 WidthRequest="180"
+                BackgroundColor="{StaticResource BackgroundSubtle}"
                 HeightRequest="200"
                 InputTransparent="true" />
             <Label
@@ -647,5 +660,6 @@
                 FontSize="16"
                 HorizontalTextAlignment="Center" />
         </VerticalStackLayout>
+        </Border>
     </Grid>
 </ContentPage>
\ No newline at end of file
diff --git a/src/MainPage.xaml.cs b/src/MainPage.xaml.cs
index 53c8538..4e69823 100644
--- a/src/MainPage.xaml.cs
+++ b/src/MainPage.xaml.cs
@@ -10,6 +10,7 @@
 using System;
 using System.Diagnostics;
 using static System.Runtime.InteropServices.JavaScript.JSType;
+using Microsoft.Maui.Platform;
 
 namespace Dots;
 
@@ -22,14 +23,34 @@ public MainPage(MainViewModel vm)
         InitializeComponent();
         AnimationView.Source = new HtmlWebViewSource()
         {
-            Html = $$"""<body style=background:#605d64;overflow:hidden><video autoplay loop muted style=width:180px;height:180px><source src="https://github.com/nor0x/Dots/raw/main/Assets/dotsanimation1.mp4" "type=" video/mp4">"""
+            Html = $$"""<body style="background:#605d64 !important;overflow:hidden"><video autoplay loop muted style="width:180px;height:180px;background:#605d64 !important;border:0px!important"><source src="https://github.com/nor0x/Dots/raw/main/Assets/dotsanimation1.mp4" "type=" video/mp4">"""
         };
     }
 
+    protected override void OnHandlerChanged()
+    {
+        base.OnHandlerChanged();
+#if WINDOWS
+        if(MainSearchBar.Handler.PlatformView is Microsoft.UI.Xaml.Controls.AutoSuggestBox asb)
+        {
+
+        }
+#endif
+    }
+
     protected async override void OnAppearing()
     {
         base.OnAppearing();
-        await _vm.CheckSdks();
+        var lastChecked = Preferences.Get(Constants.LastCheckedKey, DateTime.MinValue);
+
+        bool force = false;
+        if (DateTime.Now.Subtract(lastChecked).TotalDays > 15)
+        {
+            force = true;
+            Preferences.Set(Constants.LastCheckedKey, DateTime.Now);
+        }
+        await _vm.CheckSdks(force);
+
     }
 
     private async void CollapseDetails_Tapped(object sender, Microsoft.Maui.Controls.TappedEventArgs e)
diff --git a/src/Services/DotnetService.cs b/src/Services/DotnetService.cs
index 085e553..453b0e2 100644
--- a/src/Services/DotnetService.cs
+++ b/src/Services/DotnetService.cs
@@ -27,12 +27,12 @@ public class DotnetService
     public async Task<List<Sdk>> GetSdks(bool force = false)
     {
         var result = new List<Sdk>();
-        var index = await GetReleaseIndex();
+        var index = await GetReleaseIndex(force);
         var releaseInfos = new List<Release>();
         var installed = GetInstalledSdks(force);
         foreach(var item in index)
         {
-            var infos = await GetReleaseInfos(item.ChannelVersion);
+            var infos = await GetReleaseInfos(item.ChannelVersion, force);
             releaseInfos.AddRange(infos);
         }
         int i = 0;