diff --git a/Pal.Client/Configuration/AccountConfigurationV7.cs b/Pal.Client/Configuration/AccountConfigurationV7.cs
index 2d74075..4c65342 100644
--- a/Pal.Client/Configuration/AccountConfigurationV7.cs
+++ b/Pal.Client/Configuration/AccountConfigurationV7.cs
@@ -1,13 +1,12 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Security.Cryptography;
 using System.Text.Json.Serialization;
 using Dalamud.Logging;
 
 namespace Pal.Client.Configuration
 {
-    public class AccountConfigurationV7 : IAccountConfiguration
+    public sealed class AccountConfigurationV7 : IAccountConfiguration
     {
         private const int DefaultEntropyLength = 16;
 
diff --git a/Pal.Client/Configuration/ConfigurationManager.cs b/Pal.Client/Configuration/ConfigurationManager.cs
index 1dfdbd7..ac2b808 100644
--- a/Pal.Client/Configuration/ConfigurationManager.cs
+++ b/Pal.Client/Configuration/ConfigurationManager.cs
@@ -7,13 +7,11 @@ using System.Text.Json;
 using Dalamud.Logging;
 using Dalamud.Plugin;
 using ImGuiNET;
-using Pal.Client.DependencyInjection;
-using Pal.Client.Scheduled;
 using NJson = Newtonsoft.Json;
 
 namespace Pal.Client.Configuration
 {
-    internal class ConfigurationManager
+    internal sealed class ConfigurationManager
     {
         private readonly DalamudPluginInterface _pluginInterface;
 
@@ -56,13 +54,13 @@ namespace Pal.Client.Configuration
                 ConfigurationV1 configurationV1 =
                     NJson.JsonConvert.DeserializeObject<ConfigurationV1>(
                         File.ReadAllText(_pluginInterface.ConfigFile.FullName)) ?? new ConfigurationV1();
-                configurationV1.Migrate();
-                configurationV1.Save();
+                configurationV1.Migrate(_pluginInterface);
+                configurationV1.Save(_pluginInterface);
 
                 var v7 = MigrateToV7(configurationV1);
                 Save(v7, queue: false);
 
-                File.Move(_pluginInterface.ConfigFile.FullName, _pluginInterface.ConfigFile.FullName + ".old", true);
+                //File.Move(_pluginInterface.ConfigFile.FullName, _pluginInterface.ConfigFile.FullName + ".old", true);
             }
         }
 
@@ -81,18 +79,21 @@ namespace Pal.Client.Configuration
                     {
                         Show = v1.ShowTraps,
                         Color = ImGui.ColorConvertFloat4ToU32(v1.TrapColor),
+                        OnlyVisibleAfterPomander = v1.OnlyVisibleTrapsAfterPomander,
                         Fill = false
                     },
                     HoardCoffers = new MarkerConfiguration
                     {
                         Show = v1.ShowHoard,
                         Color = ImGui.ColorConvertFloat4ToU32(v1.HoardColor),
+                        OnlyVisibleAfterPomander = v1.OnlyVisibleHoardAfterPomander,
                         Fill = false
                     },
                     SilverCoffers = new MarkerConfiguration
                     {
                         Show = v1.ShowSilverCoffers,
                         Color = ImGui.ColorConvertFloat4ToU32(v1.SilverCofferColor),
+                        OnlyVisibleAfterPomander = false,
                         Fill = v1.FillSilverCoffers
                     }
                 }
diff --git a/Pal.Client/Configuration/ConfigurationV1.cs b/Pal.Client/Configuration/ConfigurationV1.cs
index 7128f52..c824f33 100644
--- a/Pal.Client/Configuration/ConfigurationV1.cs
+++ b/Pal.Client/Configuration/ConfigurationV1.cs
@@ -1,19 +1,17 @@
 using Dalamud.Logging;
-using ECommons.Schedulers;
 using Newtonsoft.Json;
-using Pal.Client.Scheduled;
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Numerics;
-using Pal.Client.Extensions;
+using Dalamud.Plugin;
 
 namespace Pal.Client.Configuration
 {
     [Obsolete]
-    public class ConfigurationV1
+    public sealed class ConfigurationV1
     {
         public int Version { get; set; } = 6;
 
@@ -52,7 +50,7 @@ namespace Pal.Client.Configuration
         public string BetaKey { get; set; } = "";
         #endregion
 
-        public void Migrate()
+        public void Migrate(DalamudPluginInterface pluginInterface)
         {
             if (Version == 1)
             {
@@ -65,7 +63,7 @@ namespace Pal.Client.Configuration
                     AccountIds["https://pal.μ.tv"] = accountId;
 
                 Version = 2;
-                Save();
+                Save(pluginInterface);
             }
 
             if (Version == 2)
@@ -77,13 +75,13 @@ namespace Pal.Client.Configuration
                     Id = x.Value.ToString() // encryption happens in V7 migration at latest
                 });
                 Version = 3;
-                Save();
+                Save(pluginInterface);
             }
 
             if (Version == 3)
             {
                 Version = 4;
-                Save();
+                Save(pluginInterface);
             }
 
             if (Version == 4)
@@ -127,7 +125,7 @@ namespace Pal.Client.Configuration
                 */
 
                 Version = 5;
-                Save();
+                Save(pluginInterface);
             }
 
             if (Version == 5)
@@ -135,26 +133,26 @@ namespace Pal.Client.Configuration
                 LocalState.UpdateAll();
 
                 Version = 6;
-                Save();
+                Save(pluginInterface);
             }
         }
 
-        public void Save()
+        public void Save(DalamudPluginInterface pluginInterface)
         {
-            File.WriteAllText(Service.PluginInterface.ConfigFile.FullName, JsonConvert.SerializeObject(this, Formatting.Indented, new JsonSerializerSettings
+            File.WriteAllText(pluginInterface.ConfigFile.FullName, JsonConvert.SerializeObject(this, Formatting.Indented, new JsonSerializerSettings
             {
                 TypeNameAssemblyFormatHandling = TypeNameAssemblyFormatHandling.Simple,
                 TypeNameHandling = TypeNameHandling.Objects
             }));
         }
 
-        public class AccountInfo
+        public sealed class AccountInfo
         {
             public string? Id { get; set; }
             public List<string> CachedRoles { get; set; } = new();
         }
 
-        public class ImportHistoryEntry
+        public sealed class ImportHistoryEntry
         {
             public Guid Id { get; set; }
             public string? RemoteUrl { get; set; }
diff --git a/Pal.Client/Configuration/ConfigurationV7.cs b/Pal.Client/Configuration/ConfigurationV7.cs
index 3fc1dbf..9c2012f 100644
--- a/Pal.Client/Configuration/ConfigurationV7.cs
+++ b/Pal.Client/Configuration/ConfigurationV7.cs
@@ -4,55 +4,56 @@ using System.Linq;
 using System.Text.Json.Serialization;
 using Pal.Client.Net;
 
-namespace Pal.Client.Configuration;
-
-public class ConfigurationV7 : IPalacePalConfiguration, IConfigurationInConfigDirectory
+namespace Pal.Client.Configuration
 {
-    public int Version { get; set; } = 7;
-
-    public bool FirstUse { get; set; } = true;
-    public EMode Mode { get; set; }
-    public string BetaKey { get; init; } = "";
-
-    public DeepDungeonConfiguration DeepDungeons { get; set; } = new();
-    public RendererConfiguration Renderer { get; set; } = new();
-    public List<AccountConfigurationV7> Accounts { get; set; } = new();
-
-    [JsonIgnore]
-    [Obsolete]
-    public List<ConfigurationV1.ImportHistoryEntry> ImportHistory { get; set; } = new();
-
-    public IAccountConfiguration CreateAccount(string server, Guid accountId)
+    public sealed class ConfigurationV7 : IPalacePalConfiguration, IConfigurationInConfigDirectory
     {
-        var account = new AccountConfigurationV7(server, accountId);
-        Accounts.Add(account);
-        return account;
-    }
+        public int Version { get; set; } = 7;
 
-    [Obsolete("for V1 import")]
-    internal IAccountConfiguration CreateAccount(string server, string accountId)
-    {
-        var account = new AccountConfigurationV7(server, accountId);
-        Accounts.Add(account);
-        return account;
-    }
+        public bool FirstUse { get; set; } = true;
+        public EMode Mode { get; set; }
+        public string BetaKey { get; init; } = "";
 
-    public IAccountConfiguration? FindAccount(string server)
-    {
-        return Accounts.FirstOrDefault(a => a.Server == server && a.IsUsable);
-    }
+        public DeepDungeonConfiguration DeepDungeons { get; set; } = new();
+        public RendererConfiguration Renderer { get; set; } = new();
+        public List<AccountConfigurationV7> Accounts { get; set; } = new();
 
-    public void RemoveAccount(string server)
-    {
-        Accounts.RemoveAll(a => a.Server == server && a.IsUsable);
-    }
+        [JsonIgnore]
+        [Obsolete]
+        public List<ConfigurationV1.ImportHistoryEntry> ImportHistory { get; set; } = new();
 
-    public bool HasRoleOnCurrentServer(string role)
-    {
-        if (Mode != EMode.Online)
-            return false;
+        public IAccountConfiguration CreateAccount(string server, Guid accountId)
+        {
+            var account = new AccountConfigurationV7(server, accountId);
+            Accounts.Add(account);
+            return account;
+        }
 
-        var account = FindAccount(RemoteApi.RemoteUrl);
-        return account == null || account.CachedRoles.Contains(role);
+        [Obsolete("for V1 import")]
+        internal IAccountConfiguration CreateAccount(string server, string accountId)
+        {
+            var account = new AccountConfigurationV7(server, accountId);
+            Accounts.Add(account);
+            return account;
+        }
+
+        public IAccountConfiguration? FindAccount(string server)
+        {
+            return Accounts.FirstOrDefault(a => a.Server == server && a.IsUsable);
+        }
+
+        public void RemoveAccount(string server)
+        {
+            Accounts.RemoveAll(a => a.Server == server && a.IsUsable);
+        }
+
+        public bool HasRoleOnCurrentServer(string role)
+        {
+            if (Mode != EMode.Online)
+                return false;
+
+            var account = FindAccount(RemoteApi.RemoteUrl);
+            return account == null || account.CachedRoles.Contains(role);
+        }
     }
 }
diff --git a/Pal.Client/DependencyInjection/DebugState.cs b/Pal.Client/DependencyInjection/DebugState.cs
index 0a632a3..1fe7624 100644
--- a/Pal.Client/DependencyInjection/DebugState.cs
+++ b/Pal.Client/DependencyInjection/DebugState.cs
@@ -2,7 +2,7 @@
 
 namespace Pal.Client.DependencyInjection
 {
-    internal class DebugState
+    internal sealed class DebugState
     {
         public string? DebugMessage { get; set; }
 
diff --git a/Pal.Client/DependencyInjection/DIPlugin.cs b/Pal.Client/DependencyInjection/DependencyInjectionContext.cs
similarity index 93%
rename from Pal.Client/DependencyInjection/DIPlugin.cs
rename to Pal.Client/DependencyInjection/DependencyInjectionContext.cs
index e77e056..62241e1 100644
--- a/Pal.Client/DependencyInjection/DIPlugin.cs
+++ b/Pal.Client/DependencyInjection/DependencyInjectionContext.cs
@@ -22,13 +22,14 @@ namespace Pal.Client.DependencyInjection
     /// <summary>
     /// DI-aware Plugin.
     /// </summary>
-    internal sealed class DIPlugin : IDalamudPlugin
+    // ReSharper disable once UnusedType.Global
+    internal sealed class DependencyInjectionContext : IDalamudPlugin
     {
         private ServiceProvider? _serviceProvider;
 
         public string Name => Localization.Palace_Pal;
 
-        public DIPlugin(DalamudPluginInterface pluginInterface,
+        public DependencyInjectionContext(DalamudPluginInterface pluginInterface,
             ClientState clientState,
             GameGui gameGui,
             ChatGui chatGui,
@@ -51,7 +52,7 @@ namespace Pal.Client.DependencyInjection
             services.AddSingleton(condition);
             services.AddSingleton(commandManager);
             services.AddSingleton(dataManager);
-            services.AddSingleton(new WindowSystem(typeof(DIPlugin).AssemblyQualifiedName));
+            services.AddSingleton(new WindowSystem(typeof(DependencyInjectionContext).AssemblyQualifiedName));
 
             // plugin-specific
             services.AddSingleton<Plugin>();
diff --git a/Pal.Client/DependencyInjection/FrameworkService.cs b/Pal.Client/DependencyInjection/FrameworkService.cs
index f3adaee..aeb05df 100644
--- a/Pal.Client/DependencyInjection/FrameworkService.cs
+++ b/Pal.Client/DependencyInjection/FrameworkService.cs
@@ -18,7 +18,7 @@ using Pal.Client.Scheduled;
 
 namespace Pal.Client.DependencyInjection
 {
-    internal class FrameworkService : IDisposable
+    internal sealed class FrameworkService : IDisposable
     {
         private readonly Framework _framework;
         private readonly ConfigurationManager _configurationManager;
diff --git a/Pal.Client/Hooks.cs b/Pal.Client/Hooks.cs
index 4250075..dbdcb4f 100644
--- a/Pal.Client/Hooks.cs
+++ b/Pal.Client/Hooks.cs
@@ -10,7 +10,7 @@ using Pal.Client.DependencyInjection;
 
 namespace Pal.Client
 {
-    internal unsafe class Hooks : IDisposable
+    internal sealed unsafe class Hooks : IDisposable
     {
         private readonly ObjectTable _objectTable;
         private readonly TerritoryState _territoryState;
diff --git a/Pal.Client/LocalState.cs b/Pal.Client/LocalState.cs
index 4044768..8713da6 100644
--- a/Pal.Client/LocalState.cs
+++ b/Pal.Client/LocalState.cs
@@ -12,7 +12,7 @@ namespace Pal.Client
     /// <summary>
     /// JSON for a single floor set (e.g. 51-60).
     /// </summary>
-    internal class LocalState
+    internal sealed class LocalState
     {
         private static readonly JsonSerializerOptions JsonSerializerOptions = new() { IncludeFields = true };
         private const int CurrentVersion = 4;
@@ -146,7 +146,7 @@ namespace Pal.Client
                 marker.Imports.RemoveAll(importIds.Contains);
         }
 
-        public class SaveFile
+        public sealed class SaveFile
         {
             public int Version { get; set; }
             public HashSet<Marker> Markers { get; set; } = new();
diff --git a/Pal.Client/Marker.cs b/Pal.Client/Marker.cs
index e20d0fe..e2e79b9 100644
--- a/Pal.Client/Marker.cs
+++ b/Pal.Client/Marker.cs
@@ -9,7 +9,7 @@ using System.Text.Json.Serialization;
 
 namespace Pal.Client
 {
-    internal class Marker
+    internal sealed class Marker
     {
         public EType Type { get; set; } = EType.Unknown;
         public Vector3 Position { get; set; }
diff --git a/Pal.Client/Net/GrpcLogger.cs b/Pal.Client/Net/GrpcLogger.cs
index 9c12149..717063c 100644
--- a/Pal.Client/Net/GrpcLogger.cs
+++ b/Pal.Client/Net/GrpcLogger.cs
@@ -5,7 +5,7 @@ using System.Runtime.CompilerServices;
 
 namespace Pal.Client.Net
 {
-    internal class GrpcLogger : ILogger
+    internal sealed class GrpcLogger : ILogger
     {
         private readonly string _name;
 
diff --git a/Pal.Client/Net/GrpcLoggerProvider.cs b/Pal.Client/Net/GrpcLoggerProvider.cs
index bf702e5..f9db63f 100644
--- a/Pal.Client/Net/GrpcLoggerProvider.cs
+++ b/Pal.Client/Net/GrpcLoggerProvider.cs
@@ -3,7 +3,7 @@ using System;
 
 namespace Pal.Client.Net
 {
-    internal class GrpcLoggerProvider : ILoggerProvider
+    internal sealed class GrpcLoggerProvider : ILoggerProvider
     {
         public ILogger CreateLogger(string categoryName) => new GrpcLogger(categoryName);
 
diff --git a/Pal.Client/Net/JwtClaims.cs b/Pal.Client/Net/JwtClaims.cs
index 3247bba..5d8704b 100644
--- a/Pal.Client/Net/JwtClaims.cs
+++ b/Pal.Client/Net/JwtClaims.cs
@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace Pal.Client.Net
 {
-    internal class JwtClaims
+    internal sealed class JwtClaims
     {
         [JsonPropertyName("nameid")]
         public Guid NameId { get; set; }
@@ -46,7 +46,7 @@ namespace Pal.Client.Net
         }
     }
 
-    internal class JwtRoleConverter : JsonConverter<List<string>>
+    internal sealed class JwtRoleConverter : JsonConverter<List<string>>
     {
         public override List<string> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
@@ -78,9 +78,9 @@ namespace Pal.Client.Net
         public override void Write(Utf8JsonWriter writer, List<string> value, JsonSerializerOptions options) => throw new NotImplementedException();
     }
 
-    public class JwtDateConverter : JsonConverter<DateTimeOffset>
+    public sealed class JwtDateConverter : JsonConverter<DateTimeOffset>
     {
-        static readonly DateTimeOffset Zero = new DateTimeOffset(1970, 1, 1, 0, 0, 0, TimeSpan.Zero);
+        static readonly DateTimeOffset Zero = new(1970, 1, 1, 0, 0, 0, TimeSpan.Zero);
 
         public override DateTimeOffset Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
diff --git a/Pal.Client/Plugin.cs b/Pal.Client/Plugin.cs
index 8d1449b..2ee2e09 100644
--- a/Pal.Client/Plugin.cs
+++ b/Pal.Client/Plugin.cs
@@ -1,17 +1,11 @@
-using Dalamud.Game.ClientState.Objects.Types;
-using Dalamud.Interface.Windowing;
+using Dalamud.Interface.Windowing;
 using Dalamud.Plugin;
 using Pal.Client.Rendering;
-using Pal.Client.Scheduled;
 using Pal.Client.Windows;
 using System;
-using System.Collections.Concurrent;
-using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
-using System.Runtime.InteropServices;
 using Dalamud.Logging;
-using Pal.Client.Extensions;
 using Pal.Client.Properties;
 using ECommons;
 using Microsoft.Extensions.DependencyInjection;
diff --git a/Pal.Client/Windows/StatisticsWindow.cs b/Pal.Client/Windows/StatisticsWindow.cs
index 05f953a..90dfe5b 100644
--- a/Pal.Client/Windows/StatisticsWindow.cs
+++ b/Pal.Client/Windows/StatisticsWindow.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 
 namespace Pal.Client.Windows
 {
-    internal class StatisticsWindow : Window, IDisposable, ILanguageChanged
+    internal sealed class StatisticsWindow : Window, IDisposable, ILanguageChanged
     {
         private const string WindowId = "###PalacePalStats";
         private readonly WindowSystem _windowSystem;
@@ -112,7 +112,7 @@ namespace Pal.Client.Windows
             }
         }
 
-        private class TerritoryStatistics
+        private sealed class TerritoryStatistics
         {
             public string TerritoryName { get; }
             public uint? TrapCount { get; set; }