diff --git a/OtterGui b/OtterGui
index a78f17dd..baee5028 160000
--- a/OtterGui
+++ b/OtterGui
@@ -1 +1 @@
-Subproject commit a78f17dd1bc4cbe7e9d6c04af828ff1adac4bd6f
+Subproject commit baee502862a5e8cdfa407f703ce98abad5cc623b
diff --git a/Penumbra/Collections/ModCollection.Changes.cs b/Penumbra/Collections/ModCollection.Changes.cs
index f4c1b32e..114efe63 100644
--- a/Penumbra/Collections/ModCollection.Changes.cs
+++ b/Penumbra/Collections/ModCollection.Changes.cs
@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using System.Linq;
 using Penumbra.Mods;
 
 namespace Penumbra.Collections;
@@ -6,10 +8,12 @@ namespace Penumbra.Collections;
 // Different types a mod setting can change:
 public enum ModSettingChange
 {
-    Inheritance, // it was set to inherit from other collections or not inherit anymore
-    EnableState, // it was enabled or disabled
-    Priority,    // its priority was changed
-    Setting,     // a specific setting was changed
+    Inheritance,      // it was set to inherit from other collections or not inherit anymore
+    EnableState,      // it was enabled or disabled
+    Priority,         // its priority was changed
+    Setting,          // a specific setting was changed
+    MultiInheritance, // multiple mods were set to inherit from other collections or not inherit anymore.
+    MultiEnableState, // multiple mods were enabled or disabled at once.
 }
 
 public partial class ModCollection
@@ -28,7 +32,7 @@ public partial class ModCollection
         }
     }
 
-    // Set the enabled state mod idx to newValue if it differs from the current priority.
+    // Set the enabled state mod idx to newValue if it differs from the current enabled state.
     // If mod idx is currently inherited, stop the inheritance.
     public void SetModState( int idx, bool newValue )
     {
@@ -41,6 +45,37 @@ public partial class ModCollection
         }
     }
 
+    // Enable or disable the mod inheritance of every mod in mods.
+    public void SetMultipleModInheritances( IEnumerable< Mod > mods, bool inherit )
+    {
+        if( mods.Aggregate( false, ( current, mod ) => current | FixInheritance( mod.Index, inherit ) ) )
+        {
+            ModSettingChanged.Invoke( ModSettingChange.MultiInheritance, -1, -1, null, false );
+        }
+    }
+
+    // Set the enabled state of every mod in mods to the new value.
+    // If the mod is currently inherited, stop the inheritance.
+    public void SetMultipleModStates( IEnumerable< Mod > mods, bool newValue )
+    {
+        var changes = false;
+        foreach( var mod in mods )
+        {
+            var oldValue = _settings[ mod.Index ]?.Enabled ?? this[ mod.Index ].Settings?.Enabled ?? false;
+            if( newValue != oldValue )
+            {
+                FixInheritance( mod.Index, false );
+                _settings[ mod.Index ]!.Enabled = newValue;
+                changes                         = true;
+            }
+        }
+
+        if( changes )
+        {
+            ModSettingChanged.Invoke( ModSettingChange.MultiEnableState, -1, -1, null, false );
+        }
+    }
+
     // Set the priority of mod idx to newValue if it differs from the current priority.
     // If mod idx is currently inherited, stop the inheritance.
     public void SetModPriority( int idx, int newValue )
diff --git a/Penumbra/Mods/Mod2.Meta.cs b/Penumbra/Mods/Mod2.Meta.cs
index 0bc6f72d..8a440829 100644
--- a/Penumbra/Mods/Mod2.Meta.cs
+++ b/Penumbra/Mods/Mod2.Meta.cs
@@ -3,7 +3,7 @@ using System.IO;
 using Dalamud.Logging;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
-using Penumbra.Util;
+using OtterGui;
 
 namespace Penumbra.Mods;
 
diff --git a/Penumbra/Mods/ModFileSystemA.cs b/Penumbra/Mods/ModFileSystemA.cs
new file mode 100644
index 00000000..1bece099
--- /dev/null
+++ b/Penumbra/Mods/ModFileSystemA.cs
@@ -0,0 +1,39 @@
+using System.IO;
+using OtterGui.Filesystem;
+
+namespace Penumbra.Mods;
+
+public sealed class ModFileSystemA : FileSystem< Mod >
+{
+    public void Save()
+        => SaveToFile( new FileInfo( Mod.Manager.SortOrderFile ), SaveMod, true );
+
+    public static ModFileSystemA Load()
+    {
+        var x = new ModFileSystemA();
+        if( x.Load( new FileInfo( Mod.Manager.SortOrderFile ), Penumbra.ModManager.Mods, ModToIdentifier, ModToName ) )
+        {
+            x.Save();
+        }
+
+        x.Changed += ( _1, _2, _3, _4 ) => x.Save();
+
+        return x;
+    }
+
+    private static string ModToIdentifier( Mod mod )
+        => mod.BasePath.Name;
+
+    private static string ModToName( Mod mod )
+        => mod.Meta.Name.Text;
+
+    private static (string, bool) SaveMod( Mod mod, string fullPath )
+    {
+        if( fullPath == ModToName( mod ) )
+        {
+            return ( string.Empty, false );
+        }
+
+        return ( ModToIdentifier( mod ), true );
+    }
+}
\ No newline at end of file
diff --git a/Penumbra/Mods/ModMeta.cs b/Penumbra/Mods/ModMeta.cs
index 68469515..253839ce 100644
--- a/Penumbra/Mods/ModMeta.cs
+++ b/Penumbra/Mods/ModMeta.cs
@@ -5,6 +5,7 @@ using System.Linq;
 using Dalamud.Logging;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
+using OtterGui;
 using Penumbra.GameData.ByteString;
 using Penumbra.Util;
 
diff --git a/Penumbra/UI/Colors.cs b/Penumbra/UI/Colors.cs
new file mode 100644
index 00000000..013af594
--- /dev/null
+++ b/Penumbra/UI/Colors.cs
@@ -0,0 +1,10 @@
+namespace Penumbra.UI;
+
+public static class Colors
+{
+    public const uint DefaultTextColor        = 0xFFFFFFFFu;
+    public const uint NewModColor             = 0xFF66DD66u;
+    public const uint DisabledModColor        = 0xFF666666u;
+    public const uint ConflictingModColor     = 0xFFAAAAFFu;
+    public const uint HandledConflictModColor = 0xFF88DDDDu;
+}
\ No newline at end of file
diff --git a/Penumbra/UI/MenuTabs/ModFileSystemSelector.cs b/Penumbra/UI/MenuTabs/ModFileSystemSelector.cs
new file mode 100644
index 00000000..c80a0c47
--- /dev/null
+++ b/Penumbra/UI/MenuTabs/ModFileSystemSelector.cs
@@ -0,0 +1,330 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using Dalamud.Interface;
+using ImGuiNET;
+using OtterGui;
+using OtterGui.Filesystem;
+using OtterGui.FileSystem.Selector;
+using OtterGui.Raii;
+using Penumbra.Collections;
+using Penumbra.Mods;
+
+namespace Penumbra.UI;
+
+public sealed class ModFileSystemSelector : FileSystemSelector< Mod, ModState >
+{
+    private readonly IReadOnlySet< Mod > _newMods = new HashSet<Mod>();
+    private          LowerString         _modFilter        = LowerString.Empty;
+    private          LowerString         _modFilterAuthor  = LowerString.Empty;
+    private          LowerString         _modFilterChanges = LowerString.Empty;
+    private          LowerString         _modFilterName    = LowerString.Empty;
+    private          ModFilter           _stateFilter      = ModFilterExtensions.UnfilteredStateMods;
+
+    public ModFilter StateFilter
+    {
+        get => _stateFilter;
+        set
+        {
+            var diff = _stateFilter != value;
+            _stateFilter = value;
+            if( diff )
+            {
+                SetFilterDirty();
+            }
+        }
+    }
+
+    protected override bool ChangeFilter( string filterValue )
+    {
+        if( filterValue.StartsWith( "c:", StringComparison.InvariantCultureIgnoreCase ) )
+        {
+            _modFilterChanges = new LowerString( filterValue[ 2.. ] );
+            _modFilter        = LowerString.Empty;
+            _modFilterAuthor  = LowerString.Empty;
+            _modFilterName    = LowerString.Empty;
+        }
+        else if( filterValue.StartsWith( "a:", StringComparison.InvariantCultureIgnoreCase ) )
+        {
+            _modFilterAuthor  = new LowerString( filterValue[ 2.. ] );
+            _modFilter        = LowerString.Empty;
+            _modFilterChanges = LowerString.Empty;
+            _modFilterName    = LowerString.Empty;
+        }
+        else if( filterValue.StartsWith( "n:", StringComparison.InvariantCultureIgnoreCase ) )
+        {
+            _modFilterName    = new LowerString( filterValue[ 2.. ] );
+            _modFilter        = LowerString.Empty;
+            _modFilterChanges = LowerString.Empty;
+            _modFilterAuthor  = LowerString.Empty;
+        }
+        else
+        {
+            _modFilter        = new LowerString( filterValue );
+            _modFilterAuthor  = LowerString.Empty;
+            _modFilterChanges = LowerString.Empty;
+            _modFilterName    = LowerString.Empty;
+        }
+
+        return true;
+    }
+
+    private bool CheckFlags( int count, ModFilter hasNoFlag, ModFilter hasFlag )
+    {
+        if( count == 0 )
+        {
+            if( StateFilter.HasFlag( hasNoFlag ) )
+            {
+                return false;
+            }
+        }
+        else if( StateFilter.HasFlag( hasFlag ) )
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    private ModState GetModState( Mod mod, ModSettings? settings )
+    {
+        if( settings?.Enabled != true )
+        {
+            return new ModState { Color = ImGui.GetColorU32( ImGuiCol.TextDisabled ) };
+        }
+
+        return new ModState { Color = ImGui.GetColorU32( ImGuiCol.Text ) };
+    }
+
+    protected override bool ApplyFiltersAndState( FileSystem< Mod >.IPath path, out ModState state )
+    {
+        if( path is ModFileSystemA.Folder f )
+        {
+            return base.ApplyFiltersAndState( f, out state );
+        }
+
+        return ApplyFiltersAndState( ( ModFileSystemA.Leaf )path, out state );
+    }
+
+    private bool CheckPath( string path, Mod mod )
+        => _modFilter.IsEmpty
+         || path.Contains( _modFilter.Lower, StringComparison.InvariantCultureIgnoreCase )
+         || mod.Meta.Name.Contains( _modFilter );
+
+    private bool CheckName( Mod mod )
+        => _modFilterName.IsEmpty || mod.Meta.Name.Contains( _modFilterName );
+
+    private bool CheckAuthor( Mod mod )
+        => _modFilterAuthor.IsEmpty || mod.Meta.Author.Contains( _modFilterAuthor );
+
+    private bool CheckItems( Mod mod )
+        => _modFilterChanges.IsEmpty || mod.LowerChangedItemsString.Contains( _modFilterChanges.Lower );
+
+    private bool ApplyFiltersAndState( ModFileSystemA.Leaf leaf, out ModState state )
+    {
+        state = new ModState { Color = Colors.DefaultTextColor };
+        var mod = leaf.Value;
+        var (settings, collection) = Current[ mod.Index ];
+        // Check string filters.
+        if( !( CheckPath( leaf.FullName(), mod )
+            && CheckName( mod )
+            && CheckAuthor( mod )
+            && CheckItems( mod ) ) )
+        {
+            return true;
+        }
+
+        var isNew = _newMods.Contains( mod );
+        if( CheckFlags( mod.Resources.ModFiles.Count, ModFilter.HasNoFiles, ModFilter.HasFiles )
+        || CheckFlags( mod.Meta.FileSwaps.Count, ModFilter.HasNoFileSwaps, ModFilter.HasFileSwaps )
+        || CheckFlags( mod.Resources.MetaManipulations.Count, ModFilter.HasNoMetaManipulations, ModFilter.HasMetaManipulations )
+        || CheckFlags( mod.Meta.HasGroupsWithConfig ? 1 : 0, ModFilter.HasNoConfig, ModFilter.HasConfig )
+        || CheckFlags( isNew ? 1 : 0, ModFilter.IsNew, ModFilter.NotNew ) )
+        {
+            return true;
+        }
+
+        if( settings == null )
+        {
+            state.Color = Colors.DisabledModColor;
+            if( !StateFilter.HasFlag( ModFilter.Undefined ) )
+            {
+                return true;
+            }
+
+            settings = new ModSettings();
+        }
+
+
+        if( !settings.Enabled )
+        {
+            state.Color = Colors.DisabledModColor;
+            if( !StateFilter.HasFlag( ModFilter.Disabled ) )
+            {
+                return true;
+            }
+        }
+        else
+        {
+            if( !StateFilter.HasFlag( ModFilter.Enabled ) )
+            {
+                return true;
+            }
+
+            var conflicts = Penumbra.CollectionManager.Current.ModConflicts( mod.Index ).ToList();
+            if( conflicts.Count > 0 )
+            {
+                if( conflicts.Any( c => !c.Solved ) )
+                {
+                    if( !StateFilter.HasFlag( ModFilter.UnsolvedConflict ) )
+                    {
+                        return true;
+                    }
+
+                    state.Color = Colors.ConflictingModColor;
+                }
+                else
+                {
+                    if( !StateFilter.HasFlag( ModFilter.SolvedConflict ) )
+                    {
+                        return true;
+                    }
+
+                    state.Color = Colors.HandledConflictModColor;
+                }
+            }
+            else if( !StateFilter.HasFlag( ModFilter.NoConflict ) )
+            {
+                return true;
+            }
+        }
+
+        if( collection == Current )
+        {
+            if( !StateFilter.HasFlag( ModFilter.Uninherited ) )
+            {
+                return true;
+            }
+        }
+        else
+        {
+            if( !StateFilter.HasFlag( ModFilter.Inherited ) )
+            {
+                return true;
+            }
+        }
+
+        if( isNew )
+        {
+            state.Color = Colors.NewModColor;
+        }
+
+        return false;
+    }
+
+
+    protected override float CustomFilters( float width )
+    {
+        var pos            = ImGui.GetCursorPos();
+        var remainingWidth = width - ImGui.GetFrameHeight();
+        var comboPos       = new Vector2( pos.X + remainingWidth, pos.Y );
+        ImGui.SetCursorPos( comboPos );
+        using var combo = ImRaii.Combo( "##filterCombo", string.Empty,
+            ImGuiComboFlags.NoPreview | ImGuiComboFlags.PopupAlignLeft | ImGuiComboFlags.HeightLargest );
+
+        if( combo )
+        {
+            ImGui.Text( "A" );
+            ImGui.Text( "B" );
+            ImGui.Text( "C" );
+        }
+
+        combo.Dispose();
+        ImGui.SetCursorPos( pos );
+        return remainingWidth;
+    }
+
+
+    public ModFileSystemSelector( ModFileSystemA fileSystem )
+        : base( fileSystem )
+    {
+        SubscribeRightClickFolder( EnableDescendants, 10 );
+        SubscribeRightClickFolder( DisableDescendants, 10 );
+        SubscribeRightClickFolder( InheritDescendants, 15 );
+        SubscribeRightClickFolder( OwnDescendants, 15 );
+        AddButton( AddNewModButton, 0 );
+        AddButton( DeleteModButton, 1000 );
+    }
+
+    private static ModCollection Current
+        => Penumbra.CollectionManager.Current;
+
+    private static void EnableDescendants( ModFileSystemA.Folder folder )
+    {
+        if( ImGui.MenuItem( "Enable Descendants" ) )
+        {
+            SetDescendants( folder, true, false );
+        }
+    }
+
+    private static void DisableDescendants( ModFileSystemA.Folder folder )
+    {
+        if( ImGui.MenuItem( "Disable Descendants" ) )
+        {
+            SetDescendants( folder, false, false );
+        }
+    }
+
+    private static void InheritDescendants( ModFileSystemA.Folder folder )
+    {
+        if( ImGui.MenuItem( "Inherit Descendants" ) )
+        {
+            SetDescendants( folder, true, true );
+        }
+    }
+
+    private static void OwnDescendants( ModFileSystemA.Folder folder )
+    {
+        if( ImGui.MenuItem( "Stop Inheriting Descendants" ) )
+        {
+            SetDescendants( folder, false, true );
+        }
+    }
+
+    private static void AddNewModButton( Vector2 size )
+    {
+        if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Plus.ToIconString(), size, "Create a new, empty mod of a given name.", false, true ) )
+        { }
+    }
+
+    private void DeleteModButton( Vector2 size )
+    {
+        if( ImGuiUtil.DrawDisabledButton( FontAwesomeIcon.Trash.ToIconString(), size,
+               "Delete the currently selected mod entirely from your drive.", SelectedLeaf == null, true ) )
+        { }
+    }
+
+    private static void SetDescendants( ModFileSystemA.Folder folder, bool enabled, bool inherit = false )
+    {
+        var mods = folder.GetAllDescendants( SortMode.Lexicographical ).OfType< ModFileSystemA.Leaf >().Select( l => l.Value );
+        if( inherit )
+        {
+            Current.SetMultipleModInheritances( mods, enabled );
+        }
+        else
+        {
+            Current.SetMultipleModStates( mods, enabled );
+        }
+    }
+
+    public override SortMode SortMode
+        => Penumbra.Config.SortFoldersFirst ? SortMode.FoldersFirst : SortMode.Lexicographical;
+
+    protected override void DrawLeafName( FileSystem< Mod >.Leaf leaf, in ModState state, bool selected )
+    {
+        var       flags = selected ? ImGuiTreeNodeFlags.Selected | LeafFlags : LeafFlags;
+        using var c     = ImRaii.PushColor( ImGuiCol.Text, state.Color );
+        using var _     = ImRaii.TreeNode( leaf.Value.Meta.Name, flags );
+    }
+}
\ No newline at end of file
diff --git a/Penumbra/UI/MenuTabs/TabBrowser.cs b/Penumbra/UI/MenuTabs/TabBrowser.cs
index e88f88d6..6e00a9af 100644
--- a/Penumbra/UI/MenuTabs/TabBrowser.cs
+++ b/Penumbra/UI/MenuTabs/TabBrowser.cs
@@ -1,24 +1,37 @@
-using System.Diagnostics;
-using ImGuiNET;
+using System.Runtime.InteropServices;
+using OtterGui.Raii;
+using Penumbra.Mods;
 
-namespace Penumbra.UI
+namespace Penumbra.UI;
+
+[StructLayout( LayoutKind.Sequential, Pack = 1 )]
+public struct ModState
 {
-    public partial class SettingsInterface
-    {
-        private class TabBrowser
-        {
-            [Conditional( "LEAVEMEALONE" )]
-            public void Draw()
-            {
-                var ret = ImGui.BeginTabItem( "Available Mods" );
-                if( !ret )
-                {
-                    return;
-                }
+    public uint Color;
+}
 
-                ImGui.Text( "woah" );
-                ImGui.EndTabItem();
+public partial class SettingsInterface
+{
+    private class TabBrowser
+    {
+        private readonly ModFileSystemA        _fileSystem;
+        private readonly ModFileSystemSelector _selector;
+
+        public TabBrowser()
+        {
+            _fileSystem = ModFileSystemA.Load();
+            _selector   = new ModFileSystemSelector( _fileSystem );
+        }
+
+        public void Draw()
+        {
+            using var ret = ImRaii.TabItem( "Available Mods" );
+            if( !ret )
+            {
+                return;
             }
+
+            _selector.Draw( 400 );
         }
     }
 }
\ No newline at end of file
diff --git a/Penumbra/UI/MenuTabs/TabDebug.cs b/Penumbra/UI/MenuTabs/TabDebug.cs
index bfa7d1b8..18353834 100644
--- a/Penumbra/UI/MenuTabs/TabDebug.cs
+++ b/Penumbra/UI/MenuTabs/TabDebug.cs
@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 using System.Numerics;
 using ImGuiNET;
+using OtterGui.Raii;
 using Penumbra.Api;
 using Penumbra.UI.Custom;
 using CharacterUtility = Penumbra.Interop.CharacterUtility;
@@ -12,6 +13,17 @@ namespace Penumbra.UI;
 
 public partial class SettingsInterface
 {
+    private string ImGuiIdTester = string.Empty;
+
+    private void DrawImGuiIdTester()
+    {
+        ImGui.SetNextItemWidth( 200 );
+        ImGui.InputText( "##abc1", ref ImGuiIdTester, 32 );
+        ImGui.SameLine();
+        ImGui.Text( ImGui.GetID( ImGuiIdTester ).ToString( "X" ) );
+    }
+
+
     private static void PrintValue( string name, string value )
     {
         ImGui.TableNextRow();
@@ -289,6 +301,16 @@ public partial class SettingsInterface
         }
     }
 
+    private void DrawDebugTabUtility()
+    {
+        if( !ImGui.CollapsingHeader( "Utilities##Debug" ) )
+        {
+            return;
+        }
+
+        DrawImGuiIdTester();
+    }
+
     private void DrawDebugTab()
     {
         if( !ImGui.BeginTabItem( "Debug Tab" ) )
@@ -324,5 +346,7 @@ public partial class SettingsInterface
         ImGui.NewLine();
         DrawDebugTabIpc();
         ImGui.NewLine();
+        DrawDebugTabUtility();
+        ImGui.NewLine();
     }
 }
\ No newline at end of file
diff --git a/Penumbra/UI/MenuTabs/TabEffective.cs b/Penumbra/UI/MenuTabs/TabEffective.cs
index 8420cb5c..e9a962e7 100644
--- a/Penumbra/UI/MenuTabs/TabEffective.cs
+++ b/Penumbra/UI/MenuTabs/TabEffective.cs
@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 using Dalamud.Interface;
 using ImGuiNET;
+using OtterGui;
 using Penumbra.Collections;
 using Penumbra.GameData.ByteString;
 using Penumbra.GameData.Util;
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/ModFilter.cs b/Penumbra/UI/MenuTabs/TabInstalled/ModFilter.cs
index a90f620c..a5a0b6d8 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/ModFilter.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/ModFilter.cs
@@ -1,50 +1,55 @@
 using System;
 
-namespace Penumbra.UI
+namespace Penumbra.UI;
+
+[Flags]
+public enum ModFilter
 {
-    [Flags]
-    public enum ModFilter
-    {
-        Enabled                = 1 << 0,
-        Disabled               = 1 << 1,
-        NoConflict             = 1 << 2,
-        SolvedConflict         = 1 << 3,
-        UnsolvedConflict       = 1 << 4,
-        HasNoMetaManipulations = 1 << 5,
-        HasMetaManipulations   = 1 << 6,
-        HasNoFileSwaps         = 1 << 7,
-        HasFileSwaps           = 1 << 8,
-        HasConfig              = 1 << 9,
-        HasNoConfig            = 1 << 10,
-        HasNoFiles             = 1 << 11,
-        HasFiles               = 1 << 12,
-        IsNew                  = 1 << 13,
-        NotNew                 = 1 << 14,
-    };
+    Enabled                = 1 << 0,
+    Disabled               = 1 << 1,
+    NoConflict             = 1 << 2,
+    SolvedConflict         = 1 << 3,
+    UnsolvedConflict       = 1 << 4,
+    HasNoMetaManipulations = 1 << 5,
+    HasMetaManipulations   = 1 << 6,
+    HasNoFileSwaps         = 1 << 7,
+    HasFileSwaps           = 1 << 8,
+    HasConfig              = 1 << 9,
+    HasNoConfig            = 1 << 10,
+    HasNoFiles             = 1 << 11,
+    HasFiles               = 1 << 12,
+    IsNew                  = 1 << 13,
+    NotNew                 = 1 << 14,
+    Inherited              = 1 << 15,
+    Uninherited            = 1 << 16,
+    Undefined              = 1 << 17,
+};
 
-    public static class ModFilterExtensions
-    {
-        public const ModFilter UnfilteredStateMods = ( ModFilter )( ( 1 << 15 ) - 1 );
+public static class ModFilterExtensions
+{
+    public const ModFilter UnfilteredStateMods = ( ModFilter )( ( 1 << 18 ) - 1 );
 
-        public static string ToName( this ModFilter filter )
-            => filter switch
-            {
-                ModFilter.Enabled                => "Enabled",
-                ModFilter.Disabled               => "Disabled",
-                ModFilter.NoConflict             => "No Conflicts",
-                ModFilter.SolvedConflict         => "Solved Conflicts",
-                ModFilter.UnsolvedConflict       => "Unsolved Conflicts",
-                ModFilter.HasNoMetaManipulations => "No Meta Manipulations",
-                ModFilter.HasMetaManipulations   => "Meta Manipulations",
-                ModFilter.HasNoFileSwaps         => "No File Swaps",
-                ModFilter.HasFileSwaps           => "File Swaps",
-                ModFilter.HasNoConfig            => "No Configuration",
-                ModFilter.HasConfig              => "Configuration",
-                ModFilter.HasNoFiles             => "No Files",
-                ModFilter.HasFiles               => "Files",
-                ModFilter.IsNew                  => "Newly Imported",
-                ModFilter.NotNew                 => "Not Newly Imported",
-                _                                => throw new ArgumentOutOfRangeException( nameof( filter ), filter, null ),
-            };
-    }
+    public static string ToName( this ModFilter filter )
+        => filter switch
+        {
+            ModFilter.Enabled                => "Enabled",
+            ModFilter.Disabled               => "Disabled",
+            ModFilter.NoConflict             => "No Conflicts",
+            ModFilter.SolvedConflict         => "Solved Conflicts",
+            ModFilter.UnsolvedConflict       => "Unsolved Conflicts",
+            ModFilter.HasNoMetaManipulations => "No Meta Manipulations",
+            ModFilter.HasMetaManipulations   => "Meta Manipulations",
+            ModFilter.HasNoFileSwaps         => "No File Swaps",
+            ModFilter.HasFileSwaps           => "File Swaps",
+            ModFilter.HasNoConfig            => "No Configuration",
+            ModFilter.HasConfig              => "Configuration",
+            ModFilter.HasNoFiles             => "No Files",
+            ModFilter.HasFiles               => "Files",
+            ModFilter.IsNew                  => "Newly Imported",
+            ModFilter.NotNew                 => "Not Newly Imported",
+            ModFilter.Inherited              => "Inherited Configuration",
+            ModFilter.Uninherited            => "Own Configuration",
+            ModFilter.Undefined              => "Not Configured",
+            _                                => throw new ArgumentOutOfRangeException( nameof( filter ), filter, null ),
+        };
 }
\ No newline at end of file
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs b/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs
index 7c35efea..1b9b48f9 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/ModListCache.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using Dalamud.Logging;
+using OtterGui;
 using Penumbra.Mods;
 using Penumbra.Util;
 
@@ -9,12 +10,7 @@ namespace Penumbra.UI;
 
 public class ModListCache : IDisposable
 {
-    public const uint NewModColor             = 0xFF66DD66u;
-    public const uint DisabledModColor        = 0xFF666666u;
-    public const uint ConflictingModColor     = 0xFFAAAAFFu;
-    public const uint HandledConflictModColor = 0xFF88DDDDu;
-
-    private readonly Mods.Mod.Manager _manager;
+    private readonly Mod.Manager _manager;
 
     private readonly List< FullMod >                                       _modsInOrder    = new();
     private readonly List< (bool visible, uint color) >                    _visibleMods    = new();
@@ -24,10 +20,11 @@ public class ModListCache : IDisposable
     private LowerString _modFilter        = LowerString.Empty;
     private LowerString _modFilterAuthor  = LowerString.Empty;
     private LowerString _modFilterChanges = LowerString.Empty;
-    private ModFilter   _stateFilter      = ModFilterExtensions.UnfilteredStateMods;
-    private bool        _listResetNecessary;
-    private bool        _filterResetNecessary;
 
+    private bool _listResetNecessary;
+    private bool _filterResetNecessary;
+
+    private ModFilter _stateFilter = ModFilterExtensions.UnfilteredStateMods;
 
     public ModFilter StateFilter
     {
@@ -43,7 +40,7 @@ public class ModListCache : IDisposable
         }
     }
 
-    public ModListCache( Mods.Mod.Manager manager, IReadOnlySet< string > newMods )
+    public ModListCache( Mod.Manager manager, IReadOnlySet< string > newMods )
     {
         _manager = manager;
         _newMods = newMods;
@@ -281,7 +278,7 @@ public class ModListCache : IDisposable
                 return ret;
             }
 
-            ret.Item2 = ret.Item2 == 0 ? DisabledModColor : ret.Item2;
+            ret.Item2 = ret.Item2 == 0 ? Colors.DisabledModColor : ret.Item2;
         }
 
         if( mod.Settings.Enabled && !StateFilter.HasFlag( ModFilter.Enabled ) )
@@ -299,7 +296,7 @@ public class ModListCache : IDisposable
                     return ret;
                 }
 
-                ret.Item2 = ret.Item2 == 0 ? ConflictingModColor : ret.Item2;
+                ret.Item2 = ret.Item2 == 0 ? Colors.ConflictingModColor : ret.Item2;
             }
             else
             {
@@ -308,7 +305,7 @@ public class ModListCache : IDisposable
                     return ret;
                 }
 
-                ret.Item2 = ret.Item2 == 0 ? HandledConflictModColor : ret.Item2;
+                ret.Item2 = ret.Item2 == 0 ? Colors.HandledConflictModColor : ret.Item2;
             }
         }
         else if( !StateFilter.HasFlag( ModFilter.NoConflict ) )
@@ -319,7 +316,7 @@ public class ModListCache : IDisposable
         ret.Item1 = true;
         if( isNew )
         {
-            ret.Item2 = NewModColor;
+            ret.Item2 = Colors.NewModColor;
         }
 
         SetFolderAndParentsVisible( mod.Data.Order.ParentFolder );
diff --git a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs
index 6ccf9d3f..cc773a28 100644
--- a/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs
+++ b/Penumbra/UI/MenuTabs/TabInstalled/TabInstalledSelector.cs
@@ -217,18 +217,18 @@ public partial class SettingsInterface
             ImGui.Text( "Enabled in the current collection." );
             ImGui.Bullet();
             ImGui.SameLine();
-            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( ModListCache.DisabledModColor ), "Disabled in the current collection." );
+            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( Colors.DisabledModColor ), "Disabled in the current collection." );
             ImGui.Bullet();
             ImGui.SameLine();
-            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( ModListCache.NewModColor ),
+            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( Colors.NewModColor ),
                 "Newly imported during this session. Will go away when first enabling a mod or when Penumbra is reloaded." );
             ImGui.Bullet();
             ImGui.SameLine();
-            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( ModListCache.HandledConflictModColor ),
+            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( Colors.HandledConflictModColor ),
                 "Enabled and conflicting with another enabled Mod, but on different priorities (i.e. the conflict is solved)." );
             ImGui.Bullet();
             ImGui.SameLine();
-            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( ModListCache.ConflictingModColor ),
+            ImGui.TextColored( ImGui.ColorConvertU32ToFloat4( Colors.ConflictingModColor ),
                 "Enabled and conflicting with another enabled Mod on the same priority." );
             ImGui.Unindent();
             ImGui.BulletText( "Right-click a mod to enter its sort order, which is its name by default." );
diff --git a/Penumbra/UI/MenuTabs/TabSettings.cs b/Penumbra/UI/MenuTabs/TabSettings.cs
index ee11e961..fe36cebb 100644
--- a/Penumbra/UI/MenuTabs/TabSettings.cs
+++ b/Penumbra/UI/MenuTabs/TabSettings.cs
@@ -235,7 +235,8 @@ public partial class SettingsInterface
             }
 
             ImGui.SameLine();
-            ImGuiComponents.HelpMarker( "Enables other applications, e.g. Anamnesis, to use some Penumbra functions, like requesting redraws." );
+            ImGuiComponents.HelpMarker(
+                "Enables other applications, e.g. Anamnesis, to use some Penumbra functions, like requesting redraws." );
         }
 
         private static void DrawReloadResourceButton()
@@ -342,7 +343,6 @@ public partial class SettingsInterface
             }
 
             using var raii = ImGuiRaii.DeferredEnd( ImGui.EndTabItem );
-
             DrawRootFolder();
 
             DrawRediscoverButton();
diff --git a/Penumbra/Util/Backup.cs b/Penumbra/Util/Backup.cs
index 878731d7..a096e238 100644
--- a/Penumbra/Util/Backup.cs
+++ b/Penumbra/Util/Backup.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.IO.Compression;
+using System.Linq;
 using Dalamud.Logging;
 
 namespace Penumbra.Util;
@@ -119,7 +120,7 @@ public static class Backup
     {
         using var fileStream = File.Open( fileName, FileMode.Create );
         using var zip        = new ZipArchive( fileStream, ZipArchiveMode.Create );
-        foreach( var file in files )
+        foreach( var file in files.Where( f => File.Exists( f.FullName ) ) )
         {
             zip.CreateEntryFromFile( file.FullName, Path.GetRelativePath( configDirectory, file.FullName ), CompressionLevel.Optimal );
         }
diff --git a/Penumbra/Util/LowerString.cs b/Penumbra/Util/LowerString.cs
deleted file mode 100644
index 4942a5bc..00000000
--- a/Penumbra/Util/LowerString.cs
+++ /dev/null
@@ -1,122 +0,0 @@
-using System;
-using ImGuiNET;
-using Newtonsoft.Json;
-
-namespace Penumbra.Util;
-
-[JsonConverter( typeof( Converter ) )]
-public readonly struct LowerString : IEquatable< LowerString >, IComparable< LowerString >
-{
-    public static readonly LowerString Empty = new(string.Empty);
-
-    public readonly string Text  = string.Empty;
-    public readonly string Lower = string.Empty;
-
-    public LowerString( string text )
-    {
-        Text  = string.Intern( text );
-        Lower = string.Intern( text.ToLowerInvariant() );
-    }
-
-
-    public int Length
-        => Text.Length;
-
-    public int Count
-        => Length;
-
-    public bool Equals( LowerString other )
-        => string.Equals( Lower, other.Lower, StringComparison.InvariantCulture );
-
-    public bool Equals( string other )
-        => string.Equals( Lower, other, StringComparison.InvariantCultureIgnoreCase );
-
-    public int CompareTo( LowerString other )
-        => string.Compare( Lower, other.Lower, StringComparison.InvariantCulture );
-
-    public int CompareTo( string other )
-        => string.Compare( Lower, other, StringComparison.InvariantCultureIgnoreCase );
-
-    public bool Contains( LowerString other )
-        => Lower.Contains( other.Lower, StringComparison.InvariantCulture );
-
-    public bool Contains( string other )
-        => Lower.Contains( other, StringComparison.InvariantCultureIgnoreCase );
-
-    public bool StartsWith( LowerString other )
-        => Lower.StartsWith( other.Lower, StringComparison.InvariantCulture );
-
-    public bool StartsWith( string other )
-        => Lower.StartsWith( other, StringComparison.InvariantCultureIgnoreCase );
-
-    public bool EndsWith( LowerString other )
-        => Lower.EndsWith( other.Lower, StringComparison.InvariantCulture );
-
-    public bool EndsWith( string other )
-        => Lower.EndsWith( other, StringComparison.InvariantCultureIgnoreCase );
-
-    public override string ToString()
-        => Text;
-
-    public static implicit operator string( LowerString s )
-        => s.Text;
-
-    public static implicit operator LowerString( string s )
-        => new(s);
-
-    private class Converter : JsonConverter< LowerString >
-    {
-        public override void WriteJson( JsonWriter writer, LowerString value, JsonSerializer serializer )
-        {
-            writer.WriteValue( value.Text );
-        }
-
-        public override LowerString ReadJson( JsonReader reader, Type objectType, LowerString existingValue, bool hasExistingValue,
-            JsonSerializer serializer )
-        {
-            if( reader.Value is string text )
-            {
-                return new LowerString( text );
-            }
-
-            return existingValue;
-        }
-    }
-
-    public static bool InputWithHint( string label, string hint, ref LowerString s, uint maxLength = 128,
-        ImGuiInputTextFlags flags = ImGuiInputTextFlags.None )
-    {
-        var tmp = s.Text;
-        if( !ImGui.InputTextWithHint( label, hint, ref tmp, maxLength, flags ) || tmp == s.Text )
-        {
-            return false;
-        }
-
-        s = new LowerString( tmp );
-        return true;
-    }
-
-    public override bool Equals( object? obj )
-        => obj is LowerString lowerString && Equals( lowerString );
-
-    public override int GetHashCode()
-        => Text.GetHashCode();
-
-    public static bool operator ==( LowerString lhs, LowerString rhs )
-        => lhs.Equals( rhs );
-
-    public static bool operator !=( LowerString lhs, LowerString rhs )
-        => lhs.Equals( rhs );
-
-    public static bool operator ==( LowerString lhs, string rhs )
-        => lhs.Equals( rhs );
-
-    public static bool operator !=( LowerString lhs, string rhs )
-        => lhs.Equals( rhs );
-
-    public static bool operator ==( string lhs, LowerString rhs )
-        => rhs.Equals( lhs );
-
-    public static bool operator !=( string lhs, LowerString rhs )
-        => rhs.Equals( lhs );
-}
\ No newline at end of file
diff --git a/Penumbra/Util/ModelChanger.cs b/Penumbra/Util/ModelChanger.cs
index 75c03c3e..fd9c4eb3 100644
--- a/Penumbra/Util/ModelChanger.cs
+++ b/Penumbra/Util/ModelChanger.cs
@@ -26,7 +26,7 @@ public static class ModelChanger
          && Encoding.UTF8.GetByteCount( to )   == to.Length;
 
 
-    [Conditional( "Debug" )]
+    [Conditional( "DEBUG" )]
     private static void WriteBackup( string name, byte[] text )
         => File.WriteAllBytes( name + ".bak", text );