Merge remote-tracking branch 'origin/dev' into feature/new-viewer

# Conflicts:
#	CUE4Parse

FModel/Extensions/ListBoxExtensions.cs

@@ -0,0 +1,36 @@
+using System.Windows.Controls;
+
+namespace FModel.Extensions;
+
+public static class ListBoxExtensions
+{
+    public static ListBoxItem RevealItem(this ListBox list, object item, bool alignToTop = false)
+    {
+        var index = list.Items.IndexOf(item);
+        if (index < 0)
+            return null;
+
+        list.ApplyTemplate();
+        list.UpdateLayout();
+        if (alignToTop && list.FindVisualChild<ScrollViewer>() is { } scroll)
+        {
+            scroll.ScrollToVerticalOffset(index);
+            list.UpdateLayout();
+        }
+
+        if (list.FindVisualChild<VirtualizingPanel>() is { } panel)
+        {
+            panel.BringIndexIntoViewPublic(index);
+        }
+        else
+        {
+            list.ScrollIntoView(item);
+        }
+
+        list.UpdateLayout();
+        var container = list.ItemContainerGenerator.ContainerFromItem(item) as ListBoxItem;
+        container?.BringIntoView();
+        list.UpdateLayout();
+        return container;
+    }
+}

FModel/Extensions/VisualTreeExtensions.cs

@@ -17,4 +17,20 @@ public static class VisualTreeExtensions
         }
         return null;
     }
+
+    public static T? FindVisualChild<T>(this DependencyObject parent) where T : DependencyObject
+    {
+        for (var i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
+        {
+            var child = VisualTreeHelper.GetChild(parent, i);
+            if (child is T result)
+                return result;
+
+            if (FindVisualChild<T>(child) is { } descendant)
+                return descendant;
+        }
+
+        return null;
+    }
+
 }

FModel/Framework/RangeObservableCollection.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
+using System.ComponentModel;
 
 namespace FModel.Framework;
 
@@ -17,8 +18,7 @@ public sealed class RangeObservableCollection<T> : ObservableCollection<T>
 
     public void AddRange(IEnumerable<T> list)
     {
-        if (list == null)
-            throw new ArgumentNullException(nameof(list));
+        ArgumentNullException.ThrowIfNull(list);
 
         _suppressNotification = true;
 
@@ -29,6 +29,24 @@ public sealed class RangeObservableCollection<T> : ObservableCollection<T>
         OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
     }
 
+    public void ReplaceRange(IEnumerable<T> collection)
+    {
+        ArgumentNullException.ThrowIfNull(collection);
+
+        var items = collection as IList<T> ?? [.. collection];
+
+        CheckReentrancy();
+
+        Items.Clear();
+
+        foreach (var item in items)
+            Items.Add(item);
+
+        OnPropertyChanged(new PropertyChangedEventArgs(nameof(Count)));
+        OnPropertyChanged(new PropertyChangedEventArgs("Item[]"));
+        OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
+    }
+
     public void SetSuppressionState(bool state)
     {
         _suppressNotification = state;
@@ -38,4 +56,4 @@ public sealed class RangeObservableCollection<T> : ObservableCollection<T>
     {
         OnCollectionChanged(new NotifyCollectionChangedEventArgs(changedAction));
     }
-}
+}

FModel/MainWindow.xaml

@@ -344,16 +344,16 @@
                                     <TextBlock HorizontalAlignment="Left" VerticalAlignment="Center" TextTrimming="CharacterEllipsis">
                                         <TextBlock.Text>
                                             <MultiBinding StringFormat="{}'{0}' has {1} folders and {2} packages">
-                                                <Binding Path="SelectedItem.Header" ElementName="AssetsFolderName" FallbackValue="None" />
-                                                <Binding Path="SelectedItem.FoldersView.Count" ElementName="AssetsFolderName" FallbackValue="0" />
-                                                <Binding Path="SelectedItem.AssetsList.Assets.Count" ElementName="AssetsFolderName" FallbackValue="0" />
+                                                <Binding Path="CUE4Parse.AssetsFolder.SelectedFolder.Header" FallbackValue="None" />
+                                                <Binding Path="CUE4Parse.AssetsFolder.SelectedFolder.Folders.Count" FallbackValue="0" />
+                                                <Binding Path="CUE4Parse.AssetsFolder.SelectedFolder.AssetsList.Assets.Count" FallbackValue="0" />
                                             </MultiBinding>
                                         </TextBlock.Text>
                                     </TextBlock>
                                 </StackPanel>
                                 <StackPanel Grid.Column="2" Orientation="Horizontal" HorizontalAlignment="Right">
                                     <Button Style="{DynamicResource {x:Static adonisUi:Styles.ToolbarButton}}" ToolTip="Bring Selected Folder To View" Padding="4"
-                                            Command="{Binding MenuCommand}" CommandParameter="{Binding SelectedItem, ElementName=AssetsFolderName}">
+                                            Command="{Binding MenuCommand}" CommandParameter="{Binding CUE4Parse.AssetsFolder.SelectedFolder}">
                                         <Viewbox Width="16" Height="16" HorizontalAlignment="Center">
                                             <Canvas Width="24" Height="24">
                                                 <Path Fill="{DynamicResource {x:Static adonisUi:Brushes.ForegroundBrush}}" Data="{StaticResource LocateMeIcon}" />
@@ -379,13 +379,13 @@
                                 </StackPanel>
                             </Grid>
                             <Separator Grid.Row="1" Style="{StaticResource CustomSeparator}" Margin="0" />
-                            <TreeView Grid.Row="2"
-                                      x:Name="AssetsFolderName"
-                                      Style="{StaticResource AssetsFolderTreeView}"
-                                      SelectedItemChanged="OnAssetsTreeSelectedItemChanged"
-                                      PreviewKeyDown="OnFoldersPreviewKeyDown"
-                                      PreviewMouseDoubleClick="OnAssetsTreeMouseDoubleClick">
-                            </TreeView>
+                            <controls:FolderTree Grid.Row="2" x:Name="AssetsFolderName"
+                                                 Style="{StaticResource AssetsFolderListBox}"
+                                                 Folders="{Binding CUE4Parse.AssetsFolder}"
+                                                 ItemsSource="{Binding CUE4Parse.AssetsFolder.VisibleFolders}"
+                                                 SelectedItem="{Binding CUE4Parse.AssetsFolder.SelectedFolder, Mode=TwoWay}"
+                                                 SelectionChanged="OnAssetsTreeSelectedItemChanged"
+                                                 OpenAssets="OnFolderOpenAssets" />
                             <Separator Grid.Row="3" Style="{StaticResource CustomSeparator}" Tag="INFORMATION" />
                             <StackPanel Grid.Row="4" Orientation="Vertical" Margin="0 0 0 5">
                                 <Grid HorizontalAlignment="Stretch">
@@ -401,27 +401,27 @@
                                         <ColumnDefinition Width="*" />
                                     </Grid.ColumnDefinitions>
 
-                                    <TextBlock Grid.Row="0" Grid.Column="0" Text="{Binding SelectedItem.AssetsList.Assets.Count, ElementName=AssetsFolderName, FallbackValue=0, StringFormat={}{0:N0}}" VerticalAlignment="Center" HorizontalAlignment="Left" />
+                                    <TextBlock Grid.Row="0" Grid.Column="0" Text="{Binding CUE4Parse.AssetsFolder.SelectedFolder.AssetsList.Assets.Count, FallbackValue=0, StringFormat={}{0:N0}}" VerticalAlignment="Center" HorizontalAlignment="Left" />
                                     <TextBlock Grid.Row="0" Grid.Column="1" Text="Packages Count" VerticalAlignment="Center" HorizontalAlignment="Right" />
-                                    <TextBlock Grid.Row="1" Grid.Column="0" Text="{Binding SelectedItem.FoldersView.Count, ElementName=AssetsFolderName, FallbackValue=0, StringFormat={}{0:N0}}" VerticalAlignment="Center" HorizontalAlignment="Left" />
+                                    <TextBlock Grid.Row="1" Grid.Column="0" Text="{Binding CUE4Parse.AssetsFolder.SelectedFolder.Folders.Count, FallbackValue=0, StringFormat={}{0:N0}}" VerticalAlignment="Center" HorizontalAlignment="Left" />
                                     <TextBlock Grid.Row="1" Grid.Column="1" Text="Folders Count" VerticalAlignment="Center" HorizontalAlignment="Right" />
-                                    <TextBlock Grid.Row="2" Grid.Column="0" Text="{Binding SelectedItem.Archive, ElementName=AssetsFolderName, FallbackValue='None'}" VerticalAlignment="Center" HorizontalAlignment="Left" />
+                                    <TextBlock Grid.Row="2" Grid.Column="0" Text="{Binding CUE4Parse.AssetsFolder.SelectedFolder.Archive, FallbackValue='None'}" VerticalAlignment="Center" HorizontalAlignment="Left" />
                                     <TextBlock Grid.Row="2" Grid.Column="1" Text="Included In Archive" VerticalAlignment="Center" HorizontalAlignment="Right" />
-                                    <TextBlock Grid.Row="3" Grid.Column="0" Text="{Binding SelectedItem.MountPoint, ElementName=AssetsFolderName, FallbackValue='/', Converter={x:Static converters:TrimRightToLeftConverter.Instance}, ConverterParameter=275}" VerticalAlignment="Center" HorizontalAlignment="Left" />
+                                    <TextBlock Grid.Row="3" Grid.Column="0" Text="{Binding CUE4Parse.AssetsFolder.SelectedFolder.MountPoint, FallbackValue='/', Converter={x:Static converters:TrimRightToLeftConverter.Instance}, ConverterParameter=275}" VerticalAlignment="Center" HorizontalAlignment="Left" />
                                     <TextBlock Grid.Row="3" Grid.Column="1" Text="Archive Mount Point" VerticalAlignment="Center" HorizontalAlignment="Right" />
-                                    <TextBlock Grid.Row="4" Grid.Column="0" Text="{Binding SelectedItem.Version, ElementName=AssetsFolderName, FallbackValue='VER_UE4_LATEST', Converter={x:Static converters:TrimRightToLeftConverter.Instance}, ConverterParameter=275}" VerticalAlignment="Center" HorizontalAlignment="Left" />
+                                    <TextBlock Grid.Row="4" Grid.Column="0" Text="{Binding CUE4Parse.AssetsFolder.SelectedFolder.Version, FallbackValue='VER_UE4_LATEST', Converter={x:Static converters:TrimRightToLeftConverter.Instance}, ConverterParameter=275}" VerticalAlignment="Center" HorizontalAlignment="Left" />
                                     <TextBlock Grid.Row="4" Grid.Column="1" Text="Archive Version" VerticalAlignment="Center" HorizontalAlignment="Right" />
                                 </Grid>
                             </StackPanel>
                         </Grid>
                     </TabItem>
                     <TabItem Style="{StaticResource TabItemFillSpace}"
-                             Header="{Binding SelectedItem.AssetsList.Assets.Count, FallbackValue=0, ElementName=AssetsFolderName}"
+                             Header="{Binding CUE4Parse.AssetsFolder.SelectedFolder.AssetsList.Assets.Count, FallbackValue=0}"
                              HeaderStringFormat="{}{0} Packages">
                         <DockPanel>
 
                             <inputs:SearchTextBox DockPanel.Dock="Top" x:Name="AssetsSearchTextBox"
-                                                  Text="{Binding SelectedItem.SearchText, ElementName=AssetsFolderName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                                                  Text="{Binding CUE4Parse.AssetsFolder.SelectedFolder.SearchText, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                                                   ClearButtonClick="OnClearFilterClick" />
 
                             <Grid DockPanel.Dock="Top">
@@ -434,7 +434,7 @@
 
                                 <controls:Breadcrumb Grid.Row="0" HorizontalAlignment="Left" Margin="0 5 0 5"
                                                      MaxWidth="{Binding ActualWidth, ElementName=AssetsSearchTextBox}"
-                                                     DataContext="{Binding SelectedItem.PathAtThisPoint, ElementName=AssetsFolderName, FallbackValue='No/Directory/Detected/In/Folder'}"/>
+                                                     DataContext="{Binding CUE4Parse.AssetsFolder.SelectedFolder.PathAtThisPoint, FallbackValue='No/Directory/Detected/In/Folder'}"/>
 
                                 <ListBox Grid.Row="1" x:Name="AssetsListName"
                                          Style="{StaticResource AssetsListBox}"
@@ -508,12 +508,12 @@
                                     </Grid.ColumnDefinitions>
 
                                     <inputs:SearchTextBox x:Name="AssetsExplorerSearch" Grid.Column="0"
-                                                          Text="{Binding SelectedItem.SearchText, ElementName=AssetsFolderName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                                                          Text="{Binding CUE4Parse.AssetsFolder.SelectedFolder.SearchText, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                                                           ClearButtonClick="OnClearFilterClick" />
 
                                     <ComboBox x:Name="CategoriesSelector" Grid.Column="2"
                                               ItemsSource="{Binding Categories}"
-                                              SelectedItem="{Binding SelectedItem.SelectedCategory, ElementName=AssetsFolderName, Mode=TwoWay}" />
+                                              SelectedItem="{Binding CUE4Parse.AssetsFolder.SelectedFolder.SelectedCategory, Mode=TwoWay}" />
 
                                     <StackPanel Grid.Column="4"
                                                 Orientation="Horizontal"
@@ -555,11 +555,11 @@
 
                                 <controls:Breadcrumb Grid.Row="1" Margin="0 5 0 0"
                                                      HorizontalAlignment="Left"
-                                                     DataContext="{Binding SelectedItem.PathAtThisPoint, ElementName=AssetsFolderName}" />
+                                                     DataContext="{Binding CUE4Parse.AssetsFolder.SelectedFolder.PathAtThisPoint}" />
 
                                 <Grid Grid.Row="2">
                                     <ListBox x:Name="AssetsExplorer"
-                                             ItemsSource="{Binding SelectedItem.CombinedEntries, ElementName=AssetsFolderName, IsAsync=True}"
+                                             ItemsSource="{Binding CUE4Parse.AssetsFolder.SelectedFolder.CombinedEntries}"
                                              Background="{DynamicResource {x:Static adonisUi:Brushes.Layer3BackgroundBrush}}"
                                              PreviewKeyDown="OnPreviewKeyDown">
                                         <ListBox.Style>
@@ -577,7 +577,7 @@
                                     </ListBox>
                                     <!-- once we need sorting, convert this to a listview (see search window) and add the header back (customize the template to re-add GridViewHeaderRowPresenter) -->
                                     <ListBox x:Name="AssetsListExplorer"
-                                             ItemsSource="{Binding SelectedItem.CombinedEntries, ElementName=AssetsFolderName, IsAsync=True}"
+                                             ItemsSource="{Binding CUE4Parse.AssetsFolder.SelectedFolder.CombinedEntries}"
                                              Background="{DynamicResource {x:Static adonisUi:Brushes.Layer3BackgroundBrush}}"
                                              PreviewKeyDown="OnPreviewKeyDown">
                                         <ListBox.Style>

FModel/MainWindow.xaml.cs

@@ -23,7 +23,7 @@ namespace FModel;
 /// </summary>
 public partial class MainWindow
 {
-    public static MainWindow YesWeCats;
+    public static MainWindow Instance => (MainWindow) Application.Current.MainWindow;
     private ThreadWorkerViewModel _threadWorkerView => ApplicationService.ThreadWorkerView;
     private ApplicationViewModel _applicationView => ApplicationService.ApplicationView;
     private DiscordHandler _discordHandler => DiscordService.DiscordHandler;
@@ -48,7 +48,7 @@ public partial class MainWindow
             else if (LeftTabControl.SelectedIndex == 1 && AssetsFolderName.SelectedItem is TreeItem { Parent: TreeItem parent })
             {
                 AssetsFolderName.Focus();
-                parent.IsSelected = true;
+                SelectFolder(parent);
             }
         }));
 
@@ -63,7 +63,6 @@ public partial class MainWindow
         AssetsListName.SelectionChanged += (_, e) => SyncSelection(AssetsExplorer, e);
 
         FLogger.Logger = LogRtbName;
-        YesWeCats = this;
     }
 
     // Hack to sync selection between packages tab and explorer
@@ -236,7 +235,7 @@ public partial class MainWindow
                 DirectoryFilesListBox.Focus();
                 break;
             case 1:
-                AssetsFolderName.Focus();
+                AssetsFolderName.FocusSelection();
                 break;
             case 2:
                 AssetsListName.Focus();
@@ -264,12 +263,7 @@ public partial class MainWindow
         }
     }
 
-    private void OnAssetsTreeMouseDoubleClick(object sender, MouseButtonEventArgs e)
-    {
-        if (sender is not TreeView { SelectedItem: TreeItem treeItem } || treeItem.Folders.Count > 0) return;
-
-        _applicationView.SelectedLeftTabIndex++;
-    }
+    private void OnFolderOpenAssets(object sender, EventArgs e) => _applicationView.SelectedLeftTabIndex = 2;
 
     private void OnPreviewTexturesToggled(object sender, RoutedEventArgs e) => ItemContainerGenerator_StatusChanged(AssetsExplorer.ItemContainerGenerator, EventArgs.Empty);
     private void ItemContainerGenerator_StatusChanged(object sender, EventArgs e)
@@ -297,14 +291,43 @@ public partial class MainWindow
         }
     }
 
-    private void OnAssetsTreeSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
+    private void OnAssetsTreeSelectedItemChanged(object sender, SelectionChangedEventArgs e)
     {
-        if (sender is not TreeView { SelectedItem: TreeItem }) return;
+        if (sender is not ListBox { SelectedItem: TreeItem })
+            return;
 
         _applicationView.IsAssetsExplorerVisible = true;
         _applicationView.SelectedLeftTabIndex = 1;
     }
 
+    public void SelectFolder(TreeItem folder)
+    {
+        _applicationView.SelectedLeftTabIndex = 1;
+        UpdateLayout();
+        AssetsFolderName.SelectFolder(folder);
+        AssetsFolderName.FocusSelection();
+    }
+
+    public void SelectAsset(GameFileViewModel asset)
+    {
+        var useExplorer = UserSettings.Default.FeaturePreviewNewAssetExplorer;
+
+        _applicationView.SelectedLeftTabIndex = useExplorer ? 1 : 2;
+        if (useExplorer)
+        {
+            _applicationView.IsAssetsExplorerVisible = true;
+        }
+
+        var list = useExplorer ? UserSettings.Default.ExplorerViewMode == EExplorerViewMode.List ? AssetsListExplorer : AssetsExplorer : AssetsListName;
+        list.GetBindingExpression(ItemsControl.ItemsSourceProperty)?.UpdateTarget();
+        list.UnselectAll();
+        list.SelectedItem = asset;
+        UpdateLayout();
+        var container = list.RevealItem(asset);
+        Activate();
+        container?.Focus();
+    }
+
     private async void OnAssetsListMouseDoubleClick(object sender, MouseButtonEventArgs e)
     {
         if (sender is not ListBox listBox) return;
@@ -348,24 +371,18 @@ public partial class MainWindow
                 await _threadWorkerView.Begin(cancellationToken => _applicationView.CUE4Parse.ExtractSelected(cancellationToken, [file.Asset]));
                 break;
             case TreeItem folder:
+                e.Handled = true;
                 ApplicationService.ApplicationView.SelectedLeftTabIndex = 1;
 
-                var parent = folder.Parent;
-                while (parent != null)
-                {
-                    parent.IsExpanded = true;
-                    parent = parent.Parent;
-                }
-
                 var childFolder = folder;
                 while (childFolder.Folders.Count == 1 && childFolder.AssetsList.Assets.Count == 0)
                 {
-                    childFolder.IsExpanded = true;
+                    _applicationView.CUE4Parse.AssetsFolder.Expand(childFolder);
                     childFolder = childFolder.Folders[0];
                 }
 
-                childFolder.IsExpanded = true;
-                childFolder.IsSelected = true;
+                _applicationView.CUE4Parse.AssetsFolder.Expand(childFolder);
+                SelectFolder(childFolder);
                 break;
         }
     }
@@ -375,34 +392,12 @@ public partial class MainWindow
         _applicationView.IsAssetsExplorerVisible = false;
     }
 
-    private async void OnFoldersPreviewKeyDown(object sender, KeyEventArgs e)
-    {
-        if (e.Key != Key.Enter || sender is not TreeView treeView || treeView.SelectedItem is not TreeItem folder)
-            return;
-
-        if ((folder.IsExpanded || folder.Folders.Count == 0) && folder.AssetsList.Assets.Count > 0)
-        {
-            _applicationView.SelectedLeftTabIndex++;
-            return;
-        }
-
-        var childFolder = folder;
-        while (childFolder.Folders.Count == 1 && childFolder.AssetsList.Assets.Count == 0)
-        {
-            childFolder.IsExpanded = true;
-            childFolder = childFolder.Folders[0];
-        }
-
-        childFolder.IsExpanded = true;
-        childFolder.IsSelected = true;
-    }
-
     private void OnExportHotkey(string trigger)
     {
         if (!_applicationView.Status.IsReady || Keyboard.FocusedElement is not DependencyObject focused)
             return;
 
-        IList selection = focused.FindAncestor<TreeView>() == AssetsFolderName
+        IList selection = focused.FindAncestor<ListBox>() == AssetsFolderName
             ? new[] { AssetsFolderName.SelectedItem }
             : focused.FindAncestor<ListBox>()?.SelectedItems;
 

FModel/ViewModels/AssetsFolderViewModel.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
-using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -80,7 +79,16 @@ public class TreeItem : ViewModel
         set
         {
             if (SetProperty(ref _selectedCategory, value))
-                _ = OnSelectedCategoryChanged();
+            {
+                if (value == EAssetCategory.All)
+                {
+                    RefreshFilters();
+                }
+                else
+                {
+                    _ = OnSelectedCategoryChanged();
+                }
+            }
         }
     }
 
@@ -88,19 +96,6 @@ public class TreeItem : ViewModel
     public AssetsListViewModel AssetsList { get; } = new();
     public RangeObservableCollection<TreeItem> Folders { get; } = [];
 
-    private ICollectionView _foldersView;
-    public ICollectionView FoldersView
-    {
-        get
-        {
-            _foldersView ??= new ListCollectionView(Folders)
-            {
-                SortDescriptions = { new SortDescription(nameof(Header), ListSortDirection.Ascending) }
-            };
-            return _foldersView;
-        }
-    }
-
     private ICollectionView? _filteredFoldersView;
     public ICollectionView? FilteredFoldersView
     {
@@ -116,35 +111,15 @@ public class TreeItem : ViewModel
     }
 
     private CompositeCollection _combinedEntries;
-    public CompositeCollection CombinedEntries
-    {
-        get
-        {
-            if (_combinedEntries == null)
-            {
-                void CreateCombinedEntries()
-                {
-                    _combinedEntries = new CompositeCollection
-                    {
-                        new CollectionContainer { Collection = FilteredFoldersView },
-                        new CollectionContainer { Collection = AssetsList.AssetsView }
-                    };
-                }
-
-                if (!Application.Current.Dispatcher.CheckAccess())
-                {
-                    Application.Current.Dispatcher.Invoke(CreateCombinedEntries);
-                }
-                else
-                {
-                    CreateCombinedEntries();
-                }
-            }
-            return _combinedEntries;
-        }
-    }
+    public CompositeCollection CombinedEntries => _combinedEntries ??=
+    [
+        new CollectionContainer { Collection = FilteredFoldersView },
+        new CollectionContainer { Collection = AssetsList.AssetsView }
+    ];
 
     public TreeItem Parent { get; init; }
+    public int Depth => Parent?.Depth + 1 ?? 0;
+    public Thickness Indent => new(Depth * 16, 0, 0, 0); // For folder tree indentation
 
     public TreeItem(string header, GameFile entry, string pathHere)
     {
@@ -198,15 +173,177 @@ public class TreeItem : ViewModel
     public override string ToString() => $"{Header} | {Folders.Count} Folders | {AssetsList.Assets.Count} Files";
 }
 
-public class AssetsFolderViewModel
+public class AssetsFolderViewModel : ViewModel
 {
-    public RangeObservableCollection<TreeItem> Folders { get; }
-    public ICollectionView FoldersView { get; }
+    public RangeObservableCollection<TreeItem> Folders { get; } = [];
+    public RangeObservableCollection<TreeItem> VisibleFolders { get; } = [];
 
-    public AssetsFolderViewModel()
+    private TreeItem? _selectedFolder;
+    public TreeItem? SelectedFolder
     {
-        Folders = [];
-        FoldersView = new ListCollectionView(Folders) { SortDescriptions = { new SortDescription("Header", ListSortDirection.Ascending) } };
+        get => _selectedFolder;
+        set
+        {
+            var previous = _selectedFolder;
+            if (!SetProperty(ref _selectedFolder, value))
+                return;
+
+            previous?.IsSelected = false;
+            value?.IsSelected = true;
+        }
+    }
+
+    public void Clear()
+    {
+        SelectedFolder = null;
+        VisibleFolders.Clear();
+        Folders.Clear();
+    }
+
+    public void CollapseAll()
+    {
+        static void CollapseChildren(TreeItem folder)
+        {
+            folder.IsExpanded = false;
+            foreach (var child in folder.Folders)
+            {
+                CollapseChildren(child);
+            }
+        }
+
+        var selected = SelectedFolder;
+        while (selected?.Parent != null)
+            selected = selected.Parent;
+
+        foreach (var folder in Folders)
+        {
+            CollapseChildren(folder);
+        }
+
+        SelectedFolder = selected;
+        for (var i = VisibleFolders.Count - 1; i >= 0; i--)
+        {
+            if (VisibleFolders[i].Parent != null)
+            {
+                VisibleFolders.RemoveAt(i);
+            }
+        }
+    }
+
+    public void Expand(TreeItem folder)
+    {
+        if (folder.Folders.Count == 0)
+            return;
+
+        var index = VisibleFolders.IndexOf(folder);
+        if (index < 0)
+            return;
+
+        if (index + 1 < VisibleFolders.Count && ReferenceEquals(VisibleFolders[index + 1].Parent, folder))
+        {
+            folder.IsExpanded = true;
+            return;
+        }
+
+        foreach (var child in EnumerateVisibleChildren(folder))
+        {
+            VisibleFolders.Insert(++index, child);
+        }
+
+        folder.IsExpanded = true;
+    }
+
+    public void Collapse(TreeItem folder)
+    {
+        if (!folder.IsExpanded)
+            return;
+
+        var index = VisibleFolders.IndexOf(folder);
+        if (index < 0)
+            return;
+
+        var selected = SelectedFolder;
+        var start = index + 1;
+        var count = 0;
+        while (start + count < VisibleFolders.Count && VisibleFolders[start + count].Depth > folder.Depth)
+            count++;
+
+        if (selected != null && IsDescendantOf(selected, folder))
+        {
+            SelectedFolder = folder;
+        }
+
+        for (var i = start + count - 1; i >= start; i--)
+        {
+            VisibleFolders.RemoveAt(i);
+        }
+
+        folder.IsExpanded = false;
+    }
+
+    public void Toggle(TreeItem folder)
+    {
+        if (folder.IsExpanded)
+        {
+            Collapse(folder);
+        }
+        else
+        {
+            Expand(folder);
+        }
+    }
+
+    public void Reveal(TreeItem folder)
+    {
+        var parents = new Stack<TreeItem>();
+
+        for (var parent = folder.Parent; parent != null; parent = parent.Parent)
+            parents.Push(parent);
+
+        while (parents.Count > 0)
+            Expand(parents.Pop());
+
+        SelectedFolder = folder;
+    }
+
+    private static bool IsDescendantOf(TreeItem item, TreeItem parent)
+    {
+        for (var current = item.Parent; current != null; current = current.Parent)
+        {
+            if (ReferenceEquals(current, parent))
+                return true;
+        }
+
+        return false;
+    }
+
+    private static IEnumerable<TreeItem> EnumerateVisibleChildren(TreeItem folder)
+    {
+        foreach (var child in folder.Folders)
+        {
+            yield return child;
+
+            if (!child.IsExpanded)
+                continue;
+
+            foreach (var descendant in EnumerateVisibleChildren(child))
+            {
+                yield return descendant;
+            }
+        }
+    }
+
+    private static void SortFolders(RangeObservableCollection<TreeItem> folders)
+    {
+        if (folders.Count > 1)
+        {
+            folders.ReplaceRange([.. folders.OrderBy(x => x.Header, StringComparer.OrdinalIgnoreCase)]);
+        }
+
+        foreach (var folder in folders)
+        {
+            SortFolders(folder.Folders);
+        }
     }
 
     public void BulkPopulate(IReadOnlyCollection<GameFile> entries)
@@ -283,14 +420,15 @@ public class AssetsFolderViewModel
                 lastNode?.AssetsList.Add(entry);
             }
 
+            SortFolders(treeItems);
+
             Folders.AddRange(treeItems);
+            VisibleFolders.AddRange(treeItems);
 
             if (treeItems.Count > 0)
             {
-                // Select after publishing the collection. Selecting a detached TreeItem lets WPF
-                // auto-select the first root (usually the synthetic "Content" bucket) instead.
                 var projectName = ApplicationService.ApplicationView.CUE4Parse.Provider.ProjectName;
-                (treeItems.FirstOrDefault(x => x.Header.Equals(projectName, StringComparison.OrdinalIgnoreCase)) ?? treeItems[0]).IsSelected = true;
+                SelectedFolder = treeItems.FirstOrDefault(x => x.Header.Equals(projectName, StringComparison.OrdinalIgnoreCase)) ?? treeItems[0];
             }
 
             ApplicationService.ApplicationView.CUE4Parse.SearchVm.ChangeCollection(entries);

FModel/ViewModels/CUE4ParseViewModel.cs

@@ -347,7 +347,7 @@ public class CUE4ParseViewModel : ViewModel
     {
         if (Provider == null) return;
 
-        AssetsFolder.Folders.Clear();
+        AssetsFolder.Clear();
         SearchVm.SearchResults.Clear();
         Helper.CloseWindow<AdonisWindow>("Search For Packages");
         Provider.UnloadNonStreamedVfs();

FModel/ViewModels/Commands/GoToCommand.cs

@@ -4,54 +4,56 @@ using FModel.Services;
 
 namespace FModel.ViewModels.Commands;
 
-public class GoToCommand : ViewModelCommand<CustomDirectoriesViewModel>
+public class GoToCommand(CustomDirectoriesViewModel contextViewModel) : ViewModelCommand<CustomDirectoriesViewModel>(contextViewModel)
 {
     private ApplicationViewModel _applicationView => ApplicationService.ApplicationView;
 
-    public GoToCommand(CustomDirectoriesViewModel contextViewModel) : base(contextViewModel)
-    {
-    }
-
     public override void Execute(CustomDirectoriesViewModel contextViewModel, object parameter)
     {
         if (parameter is not string s || string.IsNullOrEmpty(s)) return;
 
-        JumpTo(s);
+        var folder = JumpTo(s);
+        if (folder != null)
+        {
+            MainWindow.Instance.SelectFolder(folder);
+        }
     }
 
     public TreeItem JumpTo(string directory)
     {
-        _applicationView.SelectedLeftTabIndex = 1; // folders tab
-        var root = _applicationView.CUE4Parse.AssetsFolder.Folders;
-        if (root is not { Count: > 0 }) return null;
+        _applicationView.SelectedLeftTabIndex = 1;
 
-        var i = 0;
-        var done = false;
-        var folders = directory.Split('/');
-        while (!done)
+        var current = _applicationView.CUE4Parse.AssetsFolder.Folders;
+        if (current.Count == 0)
+            return null;
+
+        var folders = directory.Split('/', StringSplitOptions.RemoveEmptyEntries);
+
+        TreeItem result = null;
+        for (var i = 0; i < folders.Length; i++)
         {
-            foreach (var folder in root)
+            result = null;
+
+            foreach (var folder in current)
             {
                 if (!folder.Header.Equals(folders[i], i == 0 ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal))
                     continue;
 
-                folder.IsExpanded = true; // folder found = expand
-
-                // is this the last folder aka the one we want to jump in
-                if (i >= folders.Length - 1)
-                {
-                    folder.IsSelected = true; // select it
-                    return folder;
-                }
-
-                root = folder.Folders; // grab his subfolders
+                result = folder;
                 break;
             }
 
-            i++;
-            done = i == folders.Length || root.Count == 0;
+            if (result == null)
+                return null;
+
+            current = result.Folders;
         }
 
-        return null;
+        if (result != null)
+        {
+            _applicationView.CUE4Parse.AssetsFolder.Reveal(result);
+        }
+
+        return result;
     }
 }

FModel/ViewModels/Commands/LoadCommand.cs

@@ -53,7 +53,7 @@ public class LoadCommand : ViewModelCommand<LoadingModesViewModel>
 #if DEBUG
         var loadingTime = Stopwatch.StartNew();
 #endif
-        _applicationView.CUE4Parse.AssetsFolder.Folders.Clear();
+        _applicationView.CUE4Parse.AssetsFolder.Clear();
         _applicationView.CUE4Parse.SearchVm.SearchResults.Clear();
         _applicationView.SelectedLeftTabIndex = 1; // folders tab
         _applicationView.IsAssetsExplorerVisible = true;

FModel/ViewModels/Commands/MenuCommand.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
 using System.Diagnostics;
-using System.Threading;
 using AdonisUI.Controls;
 using FModel.Extensions;
 using FModel.Framework;
@@ -73,60 +71,13 @@ public class MenuCommand : ViewModelCommand<ApplicationViewModel>
             case "ToolBox_Open_Output_Directory":
                 Process.Start(new ProcessStartInfo { FileName = UserSettings.Default.OutputDirectory, UseShellExecute = true });
                 break;
-            // case "ToolBox_Expand_All":
-            //     await ApplicationService.ThreadWorkerView.Begin(cancellationToken =>
-            //     {
-            //         SetFoldersIsExpanded(contextViewModel.CUE4Parse.AssetsFolder, true, cancellationToken);
-            //     });
-            //     break;
             case "ToolBox_Collapse_All":
-                await ApplicationService.ThreadWorkerView.Begin(cancellationToken =>
-                {
-                    SetFoldersIsExpanded(contextViewModel.CUE4Parse.AssetsFolder, false, cancellationToken);
-                });
+                contextViewModel.CUE4Parse.AssetsFolder.CollapseAll();
                 break;
             case TreeItem selectedFolder:
-                selectedFolder.IsSelected = false;
-                selectedFolder.IsSelected = true;
+                MainWindow.Instance.SelectFolder(selectedFolder);
                 break;
         }
     }
 
-    private void SetFoldersIsExpanded(AssetsFolderViewModel root, bool expand, CancellationToken cancellationToken)
-    {
-        var nodes = new LinkedList<TreeItem>();
-        foreach (TreeItem folder in root.Folders)
-            nodes.AddLast(folder);
-
-        var current = nodes.First;
-        while (current != null)
-        {
-            var folder = current.Value;
-
-            // Collapse top-down (reduce layout updates)
-            if (!expand && folder.IsExpanded)
-            {
-                folder.IsExpanded = false;
-                Thread.Yield();
-                cancellationToken.ThrowIfCancellationRequested();
-            }
-
-            foreach (var child in folder.Folders)
-            {
-                nodes.AddLast(child);
-            }
-
-            current = current.Next;
-        }
-
-        if (!expand) return;
-
-        // Expand bottom-up (reduce layout updates)
-        for (var node = nodes.Last; node != null; node = node.Previous)
-        {
-            node.Value.IsExpanded = true;
-            Thread.Yield();
-            cancellationToken.ThrowIfCancellationRequested();
-        }
-    }
 }

FModel/Views/Resources/Controls/Breadcrumb.xaml.cs

@@ -96,6 +96,6 @@ public partial class Breadcrumb
         var directory = string.Join('/', pathAtThisPoint.Split('/').Take(index));
         if (pathAtThisPoint.Equals(directory)) return;
 
-        ApplicationService.ApplicationView.CustomDirectories.GoToCommand.JumpTo(directory);
+        ApplicationService.ApplicationView.CustomDirectories.GoToCommand.Execute(directory);
     }
 }

FModel/Views/Resources/Controls/Explorer/Resources.xaml

@@ -243,7 +243,7 @@
            TargetType="ListBox"
            BasedOn="{StaticResource {x:Type ListBox}}">
         <Setter Property="ItemsSource"
-                Value="{Binding SelectedItem.AssetsList.AssetsView, ElementName=AssetsFolderName, IsAsync=True}" />
+                Value="{Binding CUE4Parse.AssetsFolder.SelectedFolder.AssetsList.AssetsView}" />
         <Setter Property="SelectionMode"
                 Value="Extended" />
         <Setter Property="ContextMenu"

FModel/Views/Resources/Controls/Explorer/Resources.xaml.cs

@@ -29,24 +29,12 @@ public partial class ResourcesDictionary
             case TreeItem folder:
                 ApplicationService.ApplicationView.SelectedLeftTabIndex = 1;
 
-                // Expand all parent folders if not expanded
-                var parent = folder.Parent;
-                while (parent != null)
-                {
-                    parent.IsExpanded = true;
-                    parent = parent.Parent;
-                }
-
-                // Auto expand single child folders
                 var childFolder = folder;
                 while (childFolder.Folders.Count == 1 && childFolder.AssetsList.Assets.Count == 0)
-                {
-                    childFolder.IsExpanded = true;
                     childFolder = childFolder.Folders[0];
-                }
 
-                childFolder.IsExpanded = true;
-                childFolder.IsSelected = true;
+                MainWindow.Instance.SelectFolder(childFolder);
+                ApplicationService.ApplicationView.CUE4Parse.AssetsFolder.Expand(childFolder);
                 break;
         }
     }

FModel/Views/Resources/Controls/FolderTree.cs

@@ -0,0 +1,158 @@
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Input;
+using FModel.Extensions;
+using FModel.ViewModels;
+
+namespace FModel.Views.Resources.Controls;
+
+public sealed class FolderTree : ListBox
+{
+    public static readonly DependencyProperty FoldersProperty = DependencyProperty.Register(nameof(Folders), typeof(AssetsFolderViewModel), typeof(FolderTree));
+
+    public AssetsFolderViewModel Folders
+    {
+        get => (AssetsFolderViewModel) GetValue(FoldersProperty);
+        set => SetValue(FoldersProperty, value);
+    }
+
+    public event EventHandler OpenAssets;
+
+    public FolderTree()
+    {
+        IsVisibleChanged += (_, e) =>
+        {
+            if (e.NewValue is true)
+            {
+                RevealSelection();
+            }
+        };
+    }
+
+    public void SelectFolder(TreeItem folder)
+    {
+        Folders.Reveal(folder);
+        SetCurrentValue(SelectedItemProperty, folder);
+        this.RevealItem(folder);
+    }
+
+    public void FocusSelection()
+    {
+        if (SelectedItem is TreeItem folder)
+        {
+            this.RevealItem(folder)?.Focus();
+        }
+        else
+        {
+            Focus();
+        }
+    }
+
+    public void RevealSelection()
+    {
+        if (SelectedItem is TreeItem folder)
+        {
+            this.RevealItem(folder, alignToTop: true);
+        }
+    }
+
+    protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e)
+    {
+        if (e.OriginalSource is DependencyObject source && source.FindAncestor<ToggleButton>() is { DataContext: TreeItem folder } && ContainerFromElement(this, source) is ListBoxItem)
+        {
+            e.Handled = true;
+            Folders?.Toggle(folder);
+            return;
+        }
+
+        base.OnPreviewMouseLeftButtonDown(e);
+    }
+
+    protected override void OnPreviewMouseDoubleClick(MouseButtonEventArgs e)
+    {
+        if (e.ChangedButton == MouseButton.Left && e.OriginalSource is DependencyObject source && source.FindAncestor<ToggleButton>() == null && ContainerFromElement(this, source) is ListBoxItem { DataContext: TreeItem folder })
+        {
+            e.Handled = true;
+            if (folder.Folders.Count > 0)
+            {
+                Folders?.Toggle(folder);
+            }
+            else if (folder.AssetsList.Assets.Count > 0)
+            {
+                OpenAssets?.Invoke(this, EventArgs.Empty);
+            }
+        }
+
+        base.OnPreviewMouseDoubleClick(e);
+    }
+
+    protected override void OnPreviewKeyDown(KeyEventArgs e)
+    {
+        if (Folders == null || SelectedItem is not TreeItem folder)
+        {
+            base.OnPreviewKeyDown(e);
+            return;
+        }
+
+        switch (e.Key)
+        {
+            case Key.Up:
+                SelectFolder((TreeItem) Items[Math.Max(0, SelectedIndex - 1)]);
+                break;
+            case Key.Down:
+                SelectFolder((TreeItem) Items[Math.Min(Items.Count - 1, SelectedIndex + 1)]);
+                break;
+            case Key.Home:
+                SelectFolder((TreeItem) Items[0]);
+                break;
+            case Key.End:
+                SelectFolder((TreeItem) Items[Items.Count - 1]);
+                break;
+            case Key.Left:
+                if (folder.IsExpanded)
+                {
+                    Folders?.Toggle(folder);
+                }
+                else if (folder.Parent != null)
+                {
+                    SelectFolder(folder.Parent);
+                }
+                break;
+            case Key.Right:
+                if (!folder.IsExpanded)
+                {
+                    Folders?.Toggle(folder);
+                }
+                else if (folder.Folders.Count > 0)
+                {
+                    SelectFolder(folder.Folders[0]);
+                }
+                break;
+            case Key.Enter:
+                if ((folder.IsExpanded || folder.Folders.Count == 0) && folder.AssetsList.Assets.Count > 0)
+                {
+                    e.Handled = true;
+                    OpenAssets?.Invoke(this, EventArgs.Empty);
+                    return;
+                }
+
+                while (folder.Folders.Count == 1 && folder.AssetsList.Assets.Count == 0)
+                    folder = folder.Folders[0];
+
+                SelectFolder(folder);
+                if (!folder.IsExpanded)
+                {
+                    Folders?.Toggle(folder);
+                }
+                break;
+            default:
+                base.OnPreviewKeyDown(e);
+                return;
+        }
+
+        e.Handled = true;
+        FocusSelection();
+    }
+}

FModel/Views/Resources/Controls/TreeViewItemBehavior.cs

@@ -1,41 +0,0 @@
-using System.Windows;
-using System.Windows.Controls;
-
-namespace FModel.Views.Resources.Controls;
-
-public sealed class TreeViewItemBehavior
-{
-    public static bool GetIsBroughtIntoViewWhenSelected(TreeViewItem treeViewItem)
-    {
-        return (bool) treeViewItem.GetValue(IsBroughtIntoViewWhenSelectedProperty);
-    }
-
-    public static void SetIsBroughtIntoViewWhenSelected(TreeViewItem treeViewItem, bool value)
-    {
-        treeViewItem.SetValue(IsBroughtIntoViewWhenSelectedProperty, value);
-    }
-
-    public static readonly DependencyProperty IsBroughtIntoViewWhenSelectedProperty =
-        DependencyProperty.RegisterAttached("IsBroughtIntoViewWhenSelected", typeof(bool), typeof(TreeViewItemBehavior),
-            new UIPropertyMetadata(false, OnIsBroughtIntoViewWhenSelectedChanged));
-
-    private static void OnIsBroughtIntoViewWhenSelectedChanged(DependencyObject depObj, DependencyPropertyChangedEventArgs e)
-    {
-        if (depObj is not TreeViewItem item)
-            return;
-
-        if (e.NewValue is not bool value)
-            return;
-
-        if (value)
-            item.Selected += OnTreeViewItemSelected;
-        else
-            item.Selected -= OnTreeViewItemSelected;
-    }
-
-    private static void OnTreeViewItemSelected(object sender, RoutedEventArgs e)
-    {
-        if (e.OriginalSource is TreeViewItem item)
-            item.BringIntoView();
-    }
-}

FModel/Views/Resources/Converters/FolderTreeIconConverter.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Globalization;
+using System.Windows.Data;
+
+namespace FModel.Views.Resources.Converters;
+
+public sealed class FolderTreeIconConverter : IValueConverter
+{
+    public static readonly FolderTreeIconConverter Instance = new();
+
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        var name = value as string;
+
+        // This should get reworked to be aligned with asset explorer somehow
+
+        return name?.ToLowerInvariant() switch
+        {
+            "config" => "/FModel;component/Resources/gear.png",
+            "plugins" => "/FModel;component/Resources/puzzle.png",
+
+            "windows" => "/FModel;component/Resources/windows.png",
+            "android" => "/FModel;component/Resources/android.png",
+            "ios" or "mac" => "/FModel;component/Resources/apple.png",
+            "linux" or "linuxaarch64" => "/FModel;component/Resources/linux.png",
+            "unix" => "/FModel;component/Resources/unix.png",
+            "platforms" => "/FModel;component/Resources/pc.png",
+
+            "weapons" => "/FModel;component/Resources/weapon.png",
+            "localization" or "internationalization" => "/FModel;component/Resources/localization.png",
+            "ui" => "/FModel;component/Resources/ui.png",
+            "sounds" or "audio" => "/FModel;component/Resources/sound.png",
+            "2dassets" or "textures" => "/FModel;component/Resources/texture.png",
+            "engine" or "enginecontent" => "/FModel;component/Resources/engine.png",
+            "materials" => "/FModel;component/Resources/materialicon.png",
+            "blueprints" => "/FModel;component/Resources/blueprint.png",
+            "cinematics" or "movies" => "/FModel;component/Resources/cinematics.png",
+
+            "fortnite" => "/FModel;component/Resources/fortnite.png",
+            "fortnitegame" => "/FModel;component/Resources/fortnitebr.png",
+            "worldexplorers" => "/FModel;component/Resources/battlebreakers.png",
+            "oakgame" => "/FModel;component/Resources/borderlands.png",
+            "shootergame" => "/FModel;component/Resources/valorant.png",
+            "roguecompany" => "/FModel;component/Resources/roguecompany.png",
+            "g3" => "/FModel;component/Resources/spellbreak.png",
+            "swgame" => "/FModel;component/Resources/fallenorder.png",
+            "prospect" => "/FModel;component/Resources/thecycle.png",
+            "creative" => "/FModel;component/Resources/creative.png",
+            "athena" => "/FModel;component/Resources/athena.png",
+            "stateofdecay2" => "/FModel;component/Resources/stateofdecay2.png",
+            _ => null
+        };
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        => throw new NotSupportedException();
+}

FModel/Views/Resources/Resources.xaml

@@ -230,69 +230,251 @@
         </Style.Triggers>
     </Style>
 
-    <Style x:Key="AssetsFolderTreeView"
-           TargetType="TreeView"
-           BasedOn="{StaticResource {x:Type TreeView}}">
-        <Setter Property="ItemsSource"
-                Value="{Binding CUE4Parse.AssetsFolder.FoldersView, IsAsync=True}" />
-        <Setter Property="adonisExtensions:ScrollViewerExtension.VerticalScrollBarExpansionMode"
-                Value="NeverExpand" />
-        <Setter Property="adonisExtensions:ScrollViewerExtension.VerticalScrollBarPlacement"
-                Value="Docked" />
-        <Setter Property="adonisExtensions:ScrollViewerExtension.HorizontalScrollBarExpansionMode"
-                Value="NeverExpand" />
-        <Setter Property="adonisExtensions:ScrollViewerExtension.HorizontalScrollBarPlacement"
-                Value="Docked" />
-        <Setter Property="HorizontalContentAlignment"
-                Value="Stretch" />
+    <LinearGradientBrush x:Key="FolderTabGradient" StartPoint="0,0" EndPoint="0,1">
+        <GradientStop Color="#FFE8C480" Offset="0" />
+        <GradientStop Color="#FFD9AA63" Offset="1" />
+    </LinearGradientBrush>
+    <LinearGradientBrush x:Key="FolderBodyGradient" StartPoint="0,0" EndPoint="0,1">
+        <GradientStop Color="#FFF3D9A4" Offset="0" />
+        <GradientStop Color="#FFE5BD77" Offset="1" />
+    </LinearGradientBrush>
+    <DrawingImage x:Key="TreeFolderClosedImage">
+        <DrawingImage.Drawing>
+            <DrawingGroup>
+                <GeometryDrawing Brush="{StaticResource FolderTabGradient}"
+                                 Geometry="M20 34 H54 L62 46 H108 C112 46 115 49 115 53 V60 H13 V45 C13 39 16 34 20 34 Z">
+                    <GeometryDrawing.Pen>
+                        <Pen Brush="#AC783F" Thickness="5" LineJoin="Round" />
+                    </GeometryDrawing.Pen>
+                </GeometryDrawing>
+                <GeometryDrawing Brush="{StaticResource FolderBodyGradient}"
+                                 Geometry="M13 60 H115 V104 C115 110 110 115 104 115 H24 C18 115 13 110 13 104 Z">
+                    <GeometryDrawing.Pen>
+                        <Pen Brush="#AC783F" Thickness="5" LineJoin="Round" />
+                    </GeometryDrawing.Pen>
+                </GeometryDrawing>
+            </DrawingGroup>
+        </DrawingImage.Drawing>
+    </DrawingImage>
+
+    <DrawingImage x:Key="TreeFolderOpenImage">
+        <DrawingImage.Drawing>
+            <DrawingGroup>
+                <GeometryDrawing Brush="{StaticResource FolderTabGradient}"
+                                 Geometry="M20 34 H54 L62 46 H103 C108 46 111 49 111 54 V105 H13 V45 C13 39 16 34 20 34 Z">
+                    <GeometryDrawing.Pen>
+                        <Pen Brush="#AC783F" Thickness="5" LineJoin="Round" />
+                    </GeometryDrawing.Pen>
+                </GeometryDrawing>
+                <GeometryDrawing Brush="{StaticResource FolderBodyGradient}"
+                                 Geometry="M30 65 H121 L104 108 C102 113 99 115 93 115 H24 C18 115 14 111 13 106 Z">
+                    <GeometryDrawing.Pen>
+                        <Pen Brush="#AC783F" Thickness="5" LineJoin="Round" />
+                    </GeometryDrawing.Pen>
+                </GeometryDrawing>
+            </DrawingGroup>
+        </DrawingImage.Drawing>
+    </DrawingImage>
+
+    <Style x:Key="FolderExpanderStyle" TargetType="ToggleButton">
+        <Setter Property="Width" Value="20" />
+        <Setter Property="Height" Value="20" />
+        <Setter Property="Focusable" Value="False" />
+        <Setter Property="ClickMode" Value="Press" />
+        <Setter Property="VerticalAlignment" Value="Center" />
+        <Setter Property="Foreground" Value="{Binding Foreground, RelativeSource={RelativeSource AncestorType=ListBoxItem}}" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="ToggleButton">
+                    <Border Background="Transparent">
+                        <Viewbox x:Name="Arrow"
+                                 Tag="-90"
+                                 Width="16"
+                                 Height="16"
+                                 HorizontalAlignment="Center"
+                                 VerticalAlignment="Center"
+                                 RenderTransformOrigin="0.5,0.5">
+                            <Viewbox.RenderTransform>
+                                <RotateTransform x:Name="ArrowRotation"
+                                                 Angle="{Binding Tag, ElementName=Arrow}" />
+                            </Viewbox.RenderTransform>
+                            <Canvas Width="24"
+                                    Height="24">
+                                <Path Fill="{TemplateBinding Foreground}"
+                                      Data="{StaticResource ArrowIcon}" />
+                            </Canvas>
+                        </Viewbox>
+                    </Border>
+                    <ControlTemplate.Triggers>
+                        <Trigger Property="IsChecked"
+                                 Value="True">
+                            <Setter TargetName="Arrow"
+                                    Property="Tag"
+                                    Value="-45" />
+                            <Trigger.EnterActions>
+                                <BeginStoryboard x:Name="ExpandArrow">
+                                    <Storyboard>
+                                        <DoubleAnimation Storyboard.TargetName="ArrowRotation"
+                                                         Storyboard.TargetProperty="Angle"
+                                                         From="-90"
+                                                         To="-45"
+                                                         Duration="0:0:0.2" />
+                                    </Storyboard>
+                                </BeginStoryboard>
+                            </Trigger.EnterActions>
+                            <Trigger.ExitActions>
+                                <BeginStoryboard x:Name="CollapseArrow">
+                                    <Storyboard>
+                                        <DoubleAnimation Storyboard.TargetName="ArrowRotation"
+                                                         Storyboard.TargetProperty="Angle"
+                                                         From="-45"
+                                                         To="-90"
+                                                         Duration="0:0:0.2" />
+                                    </Storyboard>
+                                </BeginStoryboard>
+                            </Trigger.ExitActions>
+                        </Trigger>
+                        <!-- Don't replay animation whe not needed -->
+                        <EventTrigger RoutedEvent="FrameworkElement.Loaded">
+                            <RemoveStoryboard BeginStoryboardName="ExpandArrow" />
+                            <RemoveStoryboard BeginStoryboardName="CollapseArrow" />
+                        </EventTrigger>
+                        <EventTrigger RoutedEvent="FrameworkElement.Unloaded">
+                            <RemoveStoryboard BeginStoryboardName="ExpandArrow" />
+                            <RemoveStoryboard BeginStoryboardName="CollapseArrow" />
+                        </EventTrigger>
+                        <DataTrigger Binding="{Binding Folders.Count}"
+                                     Value="0">
+                            <Setter Property="Visibility"
+                                    Value="Hidden" />
+                        </DataTrigger>
+                    </ControlTemplate.Triggers>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+    <Style x:Key="AssetsFolderListBox" TargetType="ListBox" BasedOn="{StaticResource {x:Type ListBox}}">
+        <Setter Property="ScrollViewer.CanContentScroll" Value="True" />
+        <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
+        <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto" />
+        <Setter Property="VirtualizingPanel.IsVirtualizing" Value="True" />
+        <Setter Property="VirtualizingPanel.VirtualizationMode" Value="Recycling" />
+        <Setter Property="VirtualizingPanel.ScrollUnit" Value="Item" />
+        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
+        <Setter Property="BorderThickness" Value="0" />
+        <Setter Property="Background" Value="Transparent" />
+        <Setter Property="adonisExtensions:ScrollViewerExtension.VerticalScrollBarExpansionMode" Value="NeverExpand" />
+        <Setter Property="adonisExtensions:ScrollViewerExtension.VerticalScrollBarPlacement" Value="Docked" />
+        <Setter Property="adonisExtensions:ScrollViewerExtension.HorizontalScrollBarExpansionMode" Value="NeverExpand" />
+        <Setter Property="adonisExtensions:ScrollViewerExtension.HorizontalScrollBarPlacement" Value="Docked" />
+        <Setter Property="ItemsPanel">
+            <Setter.Value>
+                <ItemsPanelTemplate>
+                    <VirtualizingStackPanel />
+                </ItemsPanelTemplate>
+            </Setter.Value>
+        </Setter>
+        <Setter Property="ItemContainerStyle">
+            <Setter.Value>
+                <Style TargetType="{x:Type ListBoxItem}"
+                       BasedOn="{StaticResource {x:Type ListBoxItem}}">
+                    <Setter Property="HorizontalContentAlignment"
+                            Value="Stretch" />
+                    <Setter Property="ContextMenu"
+                            Value="{StaticResource FolderContextMenu}" />
+                    <Setter Property="Padding"
+                            Value="0" />
+                    <Setter Property="Margin"
+                            Value="{Binding Indent}" />
+                </Style>
+            </Setter.Value>
+        </Setter>
         <Setter Property="ItemTemplate">
             <Setter.Value>
-                <HierarchicalDataTemplate ItemsSource="{Binding FoldersView, IsAsync=True}">
-                    <StackPanel Orientation="Horizontal">
-                        <Image x:Name="TreeImage"
-                               Source="/FModel;component/Resources/folder.png"
-                               Width="16"
-                               Height="16"
-                               HorizontalAlignment="Center"
-                               Margin="0 0 3.5 0" />
-                        <Border x:Name="TreeBadge"
-                                CornerRadius="5"
-                                Height="10"
-                                MinWidth="10"
-                                Background="#705542"
-                                Margin="-10.5 0 4.5 0"
-                                VerticalAlignment="Bottom">
-                            <TextBlock Text="{Binding AssetsList.Assets.Count}"
-                                       Margin="2.5 0 2.5 0"
-                                       Padding="1 0 0 0"
-                                       FontSize="7"
-                                       Foreground="White"
+                <DataTemplate>
+                    <Grid>
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="Auto" />
+                            <ColumnDefinition Width="Auto" />
+                            <ColumnDefinition Width="*" />
+                        </Grid.ColumnDefinitions>
+                        <ToggleButton Grid.Column="0"
+                                      Style="{StaticResource FolderExpanderStyle}"
+                                      IsChecked="{Binding IsExpanded, Mode=OneWay}" />
+                        <StackPanel Grid.Column="1"
+                                    Grid.ColumnSpan="2"
+                                    Orientation="Horizontal"
+                                    Margin="0 3 0 3">
+                            <Grid Width="16"
+                                  Height="16"
+                                  Margin="0 0 3.5 0"
+                                  VerticalAlignment="Center">
+                                <Image x:Name="DefaultFolderIcon"
+                                       Width="16"
+                                       Height="14"
+                                       Visibility="Collapsed"
+                                       Source="{StaticResource TreeFolderClosedImage}" />
+                                <Image x:Name="CustomFolderIcon"
+                                       Width="16"
+                                       Height="16"
+                                       Source="{Binding Header, Converter={x:Static converters:FolderTreeIconConverter.Instance}}" />
+                            </Grid>
+                            <Border x:Name="TreeBadge"
+                                    CornerRadius="5"
+                                    Height="10"
+                                    MinWidth="10"
+                                    Background="#705542"
+                                    Margin="-10.5 0 4.5 0"
+                                    VerticalAlignment="Bottom">
+                                <TextBlock Text="{Binding AssetsList.Assets.Count}"
+                                           Margin="2.5 0 2.5 0"
+                                           Padding="1 0 0 0"
+                                           FontSize="7"
+                                           Foreground="White"
+                                           VerticalAlignment="Center"
+                                           HorizontalAlignment="Center" />
+                            </Border>
+                            <TextBlock Text="{Binding Header}"
                                        VerticalAlignment="Center"
-                                       HorizontalAlignment="Center" />
-                        </Border>
-                        <TextBlock Text="{Binding Header}"
-                                   HorizontalAlignment="Left">
-                            <TextBlock.ToolTip>
-                                <ToolTip>
-                                    <TextBlock>
-                                        <TextBlock.Text>
-                                            <MultiBinding StringFormat="{}{0} has {1} folders and {2} packages">
-                                                <Binding Path="Header" />
-                                                <Binding Path="FoldersView.Count" />
-                                                <Binding Path="AssetsList.Assets.Count" />
-                                            </MultiBinding>
-                                        </TextBlock.Text>
-                                    </TextBlock>
-                                </ToolTip>
-                            </TextBlock.ToolTip>
-                        </TextBlock>
-                    </StackPanel>
-                    <HierarchicalDataTemplate.Triggers>
-                        <DataTrigger Binding="{Binding FoldersView.Count}"
-                                     Value="0">
-                            <Setter TargetName="TreeImage"
+                                       HorizontalAlignment="Left">
+                                <TextBlock.ToolTip>
+                                    <ToolTip>
+                                        <TextBlock>
+                                            <TextBlock.Text>
+                                                <MultiBinding StringFormat="{}{0} has {1} folders and {2} packages">
+                                                    <Binding Path="Header" />
+                                                    <Binding Path="Folders.Count" />
+                                                    <Binding Path="AssetsList.Assets.Count" />
+                                                </MultiBinding>
+                                            </TextBlock.Text>
+                                        </TextBlock>
+                                    </ToolTip>
+                                </TextBlock.ToolTip>
+                            </TextBlock>
+                        </StackPanel>
+                    </Grid>
+                    <DataTemplate.Triggers>
+                        <DataTrigger Binding="{Binding IsExpanded}"
+                                     Value="True">
+                            <Setter TargetName="DefaultFolderIcon"
                                     Property="Source"
-                                    Value="/FModel;component/Resources/empty_folder.png" />
+                                    Value="{StaticResource TreeFolderOpenImage}" />
+                        </DataTrigger>
+                        <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType={x:Type ListBoxItem}}}"
+                                     Value="True">
+                            <Setter TargetName="DefaultFolderIcon"
+                                    Property="Source"
+                                    Value="{StaticResource TreeFolderOpenImage}" />
+                        </DataTrigger>
+                        <DataTrigger Binding="{Binding Source, ElementName=CustomFolderIcon}"
+                                     Value="{x:Null}">
+                            <Setter TargetName="CustomFolderIcon"
+                                    Property="Visibility"
+                                    Value="Collapsed" />
+                            <Setter TargetName="DefaultFolderIcon"
+                                    Property="Visibility"
+                                    Value="Visible" />
                         </DataTrigger>
                         <DataTrigger Binding="{Binding AssetsList.Assets.Count}"
                                      Value="0">
@@ -300,408 +482,10 @@
                                     Property="Visibility"
                                     Value="Collapsed" />
                         </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Config">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/gear.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Plugins">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/puzzle.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Windows">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/windows.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Android">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/android.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="IOS">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/apple.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Mac">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/apple.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Linux">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/linux.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="LinuxAArch64">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/linux.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Unix">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/unix.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Weapons">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/weapon.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Localization">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/localization.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Internationalization">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/localization.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="UI">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/ui.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Sounds">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/sound.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="2dAssets">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/texture.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Textures">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/texture.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Engine">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/engine.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="EngineContent">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/engine.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Platforms">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/pc.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Fortnite">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/fortnite.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="FortniteGame">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/fortnitebr.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="WorldExplorers">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/battlebreakers.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="OakGame">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/borderlands.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="ShooterGame">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/valorant.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="RogueCompany">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/roguecompany.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="g3">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/spellbreak.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="SwGame">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/fallenorder.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Prospect">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/thecycle.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Materials">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/materialicon.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header, Converter={x:Static converters:CaseInsensitiveStringEqualsConverter.Instance}, ConverterParameter='Blueprints'}"
-                                     Value="True">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/blueprint.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Cinematics">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/cinematics.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Movies">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/cinematics.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Audio">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/sound.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Creative">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/creative.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header}"
-                                     Value="Athena">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/athena.png" />
-                        </DataTrigger>
-                        <DataTrigger Binding="{Binding Header, Converter={x:Static converters:CaseInsensitiveStringEqualsConverter.Instance}, ConverterParameter='StateOfDecay2'}"
-                                     Value="True">
-                            <Setter TargetName="TreeImage"
-                                    Property="Source"
-                                    Value="/FModel;component/Resources/stateofdecay2.png" />
-                        </DataTrigger>
-                    </HierarchicalDataTemplate.Triggers>
-                </HierarchicalDataTemplate>
+                    </DataTemplate.Triggers>
+                </DataTemplate>
             </Setter.Value>
         </Setter>
-        <Setter Property="ItemContainerStyle">
-            <Setter.Value>
-                <Style TargetType="{x:Type TreeViewItem}"
-                       BasedOn="{StaticResource TreeViewItemStyle}">
-                    <Setter Property="HorizontalContentAlignment"
-                            Value="Stretch" />
-                    <Setter Property="IsSelected"
-                            Value="{Binding IsSelected, Mode=TwoWay}" />
-                    <Setter Property="IsExpanded"
-                            Value="{Binding IsExpanded, Mode=TwoWay}" />
-                    <Setter Property="ContextMenu"
-                            Value="{StaticResource FolderContextMenu}" />
-                    <Setter Property="controls:TreeViewItemBehavior.IsBroughtIntoViewWhenSelected"
-                            Value="True" />
-                    <Setter Property="Padding"
-                            Value="5 3" />
-                    <Setter Property="Template">
-                        <Setter.Value>
-                            <ControlTemplate TargetType="TreeViewItem">
-                                <Grid>
-                                    <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="Auto" />
-                                        <ColumnDefinition Width="Auto" />
-                                        <ColumnDefinition Width="*" />
-                                    </Grid.ColumnDefinitions>
-                                    <Grid.RowDefinitions>
-                                        <RowDefinition Height="Auto" />
-                                        <RowDefinition />
-                                    </Grid.RowDefinitions>
-
-                                    <Border x:Name="Border"
-                                            Grid.Row="0"
-                                            Grid.Column="0"
-                                            Grid.ColumnSpan="3"
-                                            Background="{TemplateBinding Background}"
-                                            BorderBrush="{TemplateBinding BorderBrush}"
-                                            BorderThickness="{TemplateBinding BorderThickness}"
-                                            CornerRadius="{TemplateBinding adonisExtensions:CornerRadiusExtension.CornerRadius}" />
-
-                                    <Border x:Name="SpotlightLayer"
-                                            Grid.Row="0"
-                                            Grid.Column="0"
-                                            Grid.ColumnSpan="3"
-                                            Background="{TemplateBinding adonisExtensions:CursorSpotlightExtension.BackgroundBrush}"
-                                            BorderBrush="{TemplateBinding adonisExtensions:CursorSpotlightExtension.BorderBrush}"
-                                            BorderThickness="{TemplateBinding BorderThickness}"
-                                            CornerRadius="{TemplateBinding adonisExtensions:CornerRadiusExtension.CornerRadius}"
-                                            adonisExtensions:CursorSpotlightExtension.MouseEventSource="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=TreeViewItem}}"
-                                            SnapsToDevicePixels="False" />
-
-                                    <ToggleButton x:Name="Expander"
-                                                  Grid.Row="0"
-                                                  Grid.Column="0"
-                                                  Width="12"
-                                                  Height="12"
-                                                  Focusable="False"
-                                                  ClickMode="Press"
-                                                  Foreground="{TemplateBinding Foreground}"
-                                                  IsChecked="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}}"
-                                                  ContentTemplate="{DynamicResource {x:Static adonisUi:Templates.Expander}}"
-                                                  RenderTransformOrigin="0.5, 0.5">
-                                        <ToggleButton.Template>
-                                            <ControlTemplate TargetType="ToggleButton">
-                                                <Border Background="Transparent">
-                                                    <Viewbox Width="16"
-                                                             Height="16"
-                                                             HorizontalAlignment="Center">
-                                                        <Canvas Width="24"
-                                                                Height="24">
-                                                            <Path Fill="{TemplateBinding Foreground}"
-                                                                  Data="{StaticResource ArrowIcon}" />
-                                                        </Canvas>
-                                                    </Viewbox>
-                                                </Border>
-                                            </ControlTemplate>
-                                        </ToggleButton.Template>
-                                        <ToggleButton.Margin>
-                                            <MultiBinding Converter="{x:Static adonisConverters:ValuesToThicknessConverter.Instance}">
-                                                <Binding Path="Padding.Left"
-                                                         RelativeSource="{RelativeSource TemplatedParent}" />
-                                                <Binding Source="0" />
-                                                <Binding Source="8" />
-                                                <Binding Source="0" />
-                                            </MultiBinding>
-                                        </ToggleButton.Margin>
-                                        <ToggleButton.RenderTransform>
-                                            <RotateTransform x:Name="ExpanderRotateTransform"
-                                                             Angle="-90" />
-                                        </ToggleButton.RenderTransform>
-                                    </ToggleButton>
-
-                                    <ContentPresenter x:Name="PART_Header"
-                                                      Grid.Row="0"
-                                                      Grid.Column="1"
-                                                      ContentSource="Header"
-                                                      HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}">
-                                        <ContentPresenter.Margin>
-                                            <MultiBinding Converter="{x:Static adonisConverters:ValuesToThicknessConverter.Instance}">
-                                                <Binding>
-                                                    <Binding.Source>
-                                                        <system:Double>-5</system:Double>
-                                                    </Binding.Source>
-                                                </Binding>
-                                                <Binding Path="Padding.Top"
-                                                         RelativeSource="{RelativeSource TemplatedParent}" />
-                                                <Binding Path="Padding.Right"
-                                                         RelativeSource="{RelativeSource TemplatedParent}" />
-                                                <Binding Path="Padding.Bottom"
-                                                         RelativeSource="{RelativeSource TemplatedParent}" />
-                                            </MultiBinding>
-                                        </ContentPresenter.Margin>
-                                    </ContentPresenter>
-
-                                    <ItemsPresenter x:Name="ItemsHost"
-                                                    Grid.Row="1"
-                                                    Grid.Column="1"
-                                                    Grid.ColumnSpan="2" />
-                                </Grid>
-                                <ControlTemplate.Triggers>
-
-                                    <Trigger Property="IsExpanded"
-                                             Value="False">
-                                        <Setter TargetName="ItemsHost"
-                                                Property="Visibility"
-                                                Value="Collapsed" />
-                                    </Trigger>
-
-                                    <Trigger Property="IsExpanded"
-                                             Value="True">
-                                        <Trigger.EnterActions>
-                                            <BeginStoryboard>
-                                                <Storyboard>
-                                                    <DoubleAnimation Storyboard.TargetProperty="Angle"
-                                                                     Storyboard.TargetName="ExpanderRotateTransform"
-                                                                     Duration="00:00:0.2"
-                                                                     To="-45" />
-                                                </Storyboard>
-                                            </BeginStoryboard>
-                                        </Trigger.EnterActions>
-                                        <Trigger.ExitActions>
-                                            <BeginStoryboard>
-                                                <Storyboard>
-                                                    <DoubleAnimation Storyboard.TargetProperty="Angle"
-                                                                     Storyboard.TargetName="ExpanderRotateTransform"
-                                                                     Duration="00:00:0.2"
-                                                                     From="-45" />
-                                                </Storyboard>
-                                            </BeginStoryboard>
-                                        </Trigger.ExitActions>
-                                    </Trigger>
-
-                                    <Trigger Property="HasItems"
-                                             Value="False">
-                                        <Setter TargetName="Expander"
-                                                Property="Visibility"
-                                                Value="Hidden" />
-                                    </Trigger>
-
-                                </ControlTemplate.Triggers>
-                            </ControlTemplate>
-                        </Setter.Value>
-                    </Setter>
-                </Style>
-            </Setter.Value>
-        </Setter>
-        <Style.Triggers>
-            <DataTrigger Binding="{Binding Items.Count, RelativeSource={RelativeSource Self}, FallbackValue=0}"
-                         Value="0">
-                <Setter Property="Template">
-                    <Setter.Value>
-                        <ControlTemplate>
-                            <Grid>
-                                <TextBlock Text="No folders found in archives, make sure you loaded at least one"
-                                           FontWeight="SemiBold"
-                                           TextAlignment="Center"
-                                           Foreground="{DynamicResource {x:Static adonisUi:Brushes.ErrorBrush}}" />
-                            </Grid>
-                        </ControlTemplate>
-                    </Setter.Value>
-                </Setter>
-            </DataTrigger>
-        </Style.Triggers>
     </Style>
 
     <Style x:Key="GameFilesTabControl" TargetType="TabControl" BasedOn="{StaticResource {x:Type TabControl}}">

FModel/Views/SearchView.xaml.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
@@ -124,47 +123,41 @@ public partial class SearchView
         await CurrentViewModel?.CycleSortSizeMode();
     }
 
-    private async void OnAssetDoubleClick(object sender, RoutedEventArgs e)
+    private void OnAssetDoubleClick(object sender, RoutedEventArgs e)
     {
         if (CurrentListView?.SelectedItem is not GameFile entry)
             return;
 
-        await NavigateToAssetAndSelect(entry);
+        NavigateToAssetAndSelect(entry);
     }
-    private async void OnGoToRefPackage(object sender, RoutedEventArgs e)
+    private void OnGoToRefPackage(object sender, RoutedEventArgs e)
     {
         if (_refViewModel.RefFile is not GameFile entry)
             return;
 
-        await NavigateToAssetAndSelect(entry);
+        NavigateToAssetAndSelect(entry);
     }
 
-    private async Task NavigateToAssetAndSelect(GameFile entry)
+    private void NavigateToAssetAndSelect(GameFile entry)
     {
         WindowState = WindowState.Minimized;
-        MainWindow.YesWeCats.AssetsListName.ItemsSource = null;
+
         var folder = _applicationView.CustomDirectories.GoToCommand.JumpTo(entry.Directory);
         if (folder == null)
             return;
 
-        MainWindow.YesWeCats.Activate();
+        folder.SearchText = string.Empty;
+        folder.SelectedCategory = EAssetCategory.All;
 
-        do
-        { await Task.Delay(100); } while (MainWindow.YesWeCats.AssetsListName.Items.Count < folder.AssetsList.Assets.Count);
+        var mainWindow = MainWindow.Instance;
+        mainWindow.Activate();
+        mainWindow.SelectFolder(folder);
 
-        while (!folder.IsSelected || MainWindow.YesWeCats.AssetsFolderName.SelectedItem != folder)
-            await Task.Delay(50); // stops assets tab from opening too early
+        var vm = folder.AssetsList.Assets.FirstOrDefault(x => x.Asset == entry);
+        if (vm == null)
+            return;
 
-        ApplicationService.ApplicationView.SelectedLeftTabIndex = 2; // assets tab
-        do
-        {
-            await Task.Delay(100);
-            var vm = MainWindow.YesWeCats.AssetsListName.Items
-                .OfType<GameFileViewModel>()
-                .FirstOrDefault(x => x.Asset == entry);
-            MainWindow.YesWeCats.AssetsListName.SelectedItem = vm;
-            MainWindow.YesWeCats.AssetsListName.ScrollIntoView(vm);
-        } while (MainWindow.YesWeCats.AssetsListName.SelectedItem == null);
+        mainWindow.SelectAsset(vm);
     }
 
     private async void OnAssetExtract(object sender, RoutedEventArgs e)
@@ -175,7 +168,7 @@ public partial class SearchView
         WindowState = WindowState.Minimized;
         await _threadWorkerView.Begin(cancellationToken => _applicationView.CUE4Parse.Extract(cancellationToken, entry, true));
 
-        MainWindow.YesWeCats.Activate();
+        MainWindow.Instance.Activate();
     }
 
     private void OnWindowKeyDown(object sender, KeyEventArgs e)