diff --git a/.gitignore b/.gitignore
index 2e5f40f53..756e09822 100644
--- a/.gitignore
+++ b/.gitignore
@@ -491,11 +491,11 @@ appsettings.json
 /API/kavita.db-wal
 /API/Hangfire.db
 /API/Hangfire-log.db
-cache/
+API/cache/
 /API/wwwroot/
 /API/cache/
 /API/temp/
 _temp/
 _output/
-stats/
+API/stats/
 UI/Web/dist/
diff --git a/API/Controllers/ServerController.cs b/API/Controllers/ServerController.cs
index b93a1178b..2fd460f79 100644
--- a/API/Controllers/ServerController.cs
+++ b/API/Controllers/ServerController.cs
@@ -1,10 +1,10 @@
 using System;
 using System.IO;
 using System.Threading.Tasks;
-using API.DTOs;
+using API.DTOs.Stats;
 using API.Extensions;
 using API.Interfaces.Services;
-using API.Services;
+using API.Services.Tasks;
 using Kavita.Common;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
diff --git a/API/Controllers/StatsController.cs b/API/Controllers/StatsController.cs
index f35552eec..d219db790 100644
--- a/API/Controllers/StatsController.cs
+++ b/API/Controllers/StatsController.cs
@@ -1,6 +1,6 @@
 using System;
 using System.Threading.Tasks;
-using API.DTOs;
+using API.DTOs.Stats;
 using API.Interfaces.Services;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
diff --git a/API/DTOs/ClientInfoDto.cs b/API/DTOs/Stats/ClientInfoDto.cs
similarity index 66%
rename from API/DTOs/ClientInfoDto.cs
rename to API/DTOs/Stats/ClientInfoDto.cs
index 7070e64d7..f2be3b41f 100644
--- a/API/DTOs/ClientInfoDto.cs
+++ b/API/DTOs/Stats/ClientInfoDto.cs
@@ -1,6 +1,6 @@
 using System;
 
-namespace API.DTOs
+namespace API.DTOs.Stats
 {
     public class ClientInfoDto
     {
@@ -16,13 +16,14 @@ namespace API.DTOs
         public DetailsVersion Os { get; set; }
 
         public DateTime? CollectedAt { get; set; }
+        public bool UsingDarkTheme { get; set; }
 
         public bool IsTheSameDevice(ClientInfoDto clientInfoDto)
         {
-            return (clientInfoDto.ScreenResolution ?? "").Equals(ScreenResolution) &&
-                   (clientInfoDto.PlatformType ?? "").Equals(PlatformType) &&
-                   (clientInfoDto.Browser?.Name ?? "").Equals(Browser?.Name) &&
-                   (clientInfoDto.Os?.Name ?? "").Equals(Os?.Name) &&
+            return (clientInfoDto.ScreenResolution ?? string.Empty).Equals(ScreenResolution) &&
+                   (clientInfoDto.PlatformType ?? string.Empty).Equals(PlatformType) &&
+                   (clientInfoDto.Browser?.Name ?? string.Empty).Equals(Browser?.Name) &&
+                   (clientInfoDto.Os?.Name ?? string.Empty).Equals(Os?.Name) &&
                    clientInfoDto.CollectedAt.GetValueOrDefault().ToString("yyyy-MM-dd")
                        .Equals(CollectedAt.GetValueOrDefault().ToString("yyyy-MM-dd"));
         }
@@ -33,4 +34,4 @@ namespace API.DTOs
         public string Name { get; set; }
         public string Version { get; set; }
     }
-}
\ No newline at end of file
+}
diff --git a/API/DTOs/ServerInfoDto.cs b/API/DTOs/Stats/ServerInfoDto.cs
similarity index 73%
rename from API/DTOs/ServerInfoDto.cs
rename to API/DTOs/Stats/ServerInfoDto.cs
index 0f4a86d64..2aecebecc 100644
--- a/API/DTOs/ServerInfoDto.cs
+++ b/API/DTOs/Stats/ServerInfoDto.cs
@@ -1,4 +1,4 @@
-namespace API.DTOs
+namespace API.DTOs.Stats
 {
     public class ServerInfoDto
     {
@@ -8,5 +8,7 @@
         public string KavitaVersion { get; set; }
         public string BuildBranch { get; set; }
         public string Culture { get; set; }
+        public bool IsDocker { get; set; }
+        public int NumOfCores { get; set; }
     }
-}
\ No newline at end of file
+}
diff --git a/API/DTOs/UsageInfoDto.cs b/API/DTOs/Stats/UsageInfoDto.cs
similarity index 95%
rename from API/DTOs/UsageInfoDto.cs
rename to API/DTOs/Stats/UsageInfoDto.cs
index ba4b06b41..64aaeefee 100644
--- a/API/DTOs/UsageInfoDto.cs
+++ b/API/DTOs/Stats/UsageInfoDto.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using API.Entities.Enums;
 
-namespace API.DTOs
+namespace API.DTOs.Stats
 {
     public class UsageInfoDto
     {
@@ -21,4 +21,4 @@ namespace API.DTOs
         public LibraryType Type { get; set; }
         public int Count { get; set; }
     }
-}
\ No newline at end of file
+}
diff --git a/API/DTOs/UsageStatisticsDto.cs b/API/DTOs/Stats/UsageStatisticsDto.cs
similarity index 96%
rename from API/DTOs/UsageStatisticsDto.cs
rename to API/DTOs/Stats/UsageStatisticsDto.cs
index 1180401c3..08e15dc3b 100644
--- a/API/DTOs/UsageStatisticsDto.cs
+++ b/API/DTOs/Stats/UsageStatisticsDto.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 
-namespace API.DTOs
+namespace API.DTOs.Stats
 {
     public class UsageStatisticsDto
     {
@@ -30,4 +30,4 @@ namespace API.DTOs
             ClientsInfo.Add(clientInfoDto);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/API/Interfaces/Services/IStatsService.cs b/API/Interfaces/Services/IStatsService.cs
index f91a4e522..f30222385 100644
--- a/API/Interfaces/Services/IStatsService.cs
+++ b/API/Interfaces/Services/IStatsService.cs
@@ -1,5 +1,5 @@
 using System.Threading.Tasks;
-using API.DTOs;
+using API.DTOs.Stats;
 
 namespace API.Interfaces.Services
 {
@@ -10,4 +10,4 @@ namespace API.Interfaces.Services
         Task CollectRelevantData();
         Task CollectAndSendStatsData();
     }
-}
\ No newline at end of file
+}
diff --git a/API/Services/Clients/StatsApiClient.cs b/API/Services/Clients/StatsApiClient.cs
index 478852db5..e6845178d 100644
--- a/API/Services/Clients/StatsApiClient.cs
+++ b/API/Services/Clients/StatsApiClient.cs
@@ -2,7 +2,7 @@
 using System.Net.Http;
 using System.Net.Http.Json;
 using System.Threading.Tasks;
-using API.DTOs;
+using API.DTOs.Stats;
 using Microsoft.Extensions.Logging;
 
 namespace API.Services.Clients
diff --git a/API/Services/StatsService.cs b/API/Services/Tasks/StatsService.cs
similarity index 96%
rename from API/Services/StatsService.cs
rename to API/Services/Tasks/StatsService.cs
index 0e4748845..fc5e7b256 100644
--- a/API/Services/StatsService.cs
+++ b/API/Services/Tasks/StatsService.cs
@@ -6,7 +6,7 @@ using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
 using API.Data;
-using API.DTOs;
+using API.DTOs.Stats;
 using API.Interfaces;
 using API.Interfaces.Services;
 using API.Services.Clients;
@@ -15,7 +15,7 @@ using Kavita.Common.EnvironmentInfo;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
 
-namespace API.Services
+namespace API.Services.Tasks
 {
     public class StatsService : IStatsService
     {
@@ -142,7 +142,9 @@ namespace API.Services
                 RunTimeVersion = RuntimeInformation.FrameworkDescription,
                 KavitaVersion = BuildInfo.Version.ToString(),
                 Culture = Thread.CurrentThread.CurrentCulture.Name,
-                BuildBranch = BuildInfo.Branch
+                BuildBranch = BuildInfo.Branch,
+                IsDocker = new OsInfo(Array.Empty<IOsVersionAdapter>()).IsDocker,
+                NumOfCores = Environment.ProcessorCount
             };
 
             return serverInfo;
diff --git a/API/Startup.cs b/API/Startup.cs
index e443ae5d8..fea6d0603 100644
--- a/API/Startup.cs
+++ b/API/Startup.cs
@@ -7,6 +7,7 @@ using API.Services;
 using API.Services.HostedServices;
 using Hangfire;
 using Hangfire.MemoryStorage;
+using Kavita.Common;
 using Kavita.Common.EnvironmentInfo;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
diff --git a/UI/Web/src/app/_interceptors/error.interceptor.ts b/UI/Web/src/app/_interceptors/error.interceptor.ts
index 9f8645a39..20c48fd8a 100644
--- a/UI/Web/src/app/_interceptors/error.interceptor.ts
+++ b/UI/Web/src/app/_interceptors/error.interceptor.ts
@@ -25,10 +25,6 @@ export class ErrorInterceptor implements HttpInterceptor {
         if (error === undefined || error === null) {
           return throwError(error);
         }
-        
-        if (!environment.production) {
-          console.error('error:', error);
-        }
 
         switch (error.status) {
           case 400:
@@ -99,12 +95,15 @@ export class ErrorInterceptor implements HttpInterceptor {
   }
 
   private handleServerException(error: any) {
-    console.error('500 error:', error);
     const err = error.error;
     if (err.hasOwnProperty('message') && err.message.trim() !== '') {
+      if (err.message != 'User is not authenticated') {
+        console.log('500 error: ', error);
+      }
       this.toastr.error(err.message);
     } else {
       this.toastr.error('There was an unknown critical error.');
+      console.error('500 error:', error);
     }
   }
 
diff --git a/UI/Web/src/app/_models/client-info.ts b/UI/Web/src/app/_models/stats/client-info.ts
similarity index 89%
rename from UI/Web/src/app/_models/client-info.ts
rename to UI/Web/src/app/_models/stats/client-info.ts
index c4a5cd6b1..67916b8cf 100644
--- a/UI/Web/src/app/_models/client-info.ts
+++ b/UI/Web/src/app/_models/stats/client-info.ts
@@ -7,6 +7,7 @@ export interface ClientInfo {
     platformType: string,
     kavitaUiVersion: string,
     screenResolution: string;
+    usingDarkTheme: boolean;
 
     collectedAt?: Date;
 }
diff --git a/UI/Web/src/app/_models/details-version.ts b/UI/Web/src/app/_models/stats/details-version.ts
similarity index 100%
rename from UI/Web/src/app/_models/details-version.ts
rename to UI/Web/src/app/_models/stats/details-version.ts
diff --git a/UI/Web/src/app/_services/stats.service.ts b/UI/Web/src/app/_services/stats.service.ts
index 56d56d633..1c9d19133 100644
--- a/UI/Web/src/app/_services/stats.service.ts
+++ b/UI/Web/src/app/_services/stats.service.ts
@@ -1,7 +1,13 @@
 import { HttpClient } from "@angular/common/http";
 import { Injectable } from "@angular/core";
+import * as Bowser from "bowser";
+import { take } from "rxjs/operators";
 import { environment } from "src/environments/environment";
-import { ClientInfo } from "../_models/client-info";
+import { ClientInfo } from "../_models/stats/client-info";
+import { DetailsVersion } from "../_models/stats/details-version";
+import { NavService } from "./nav.service";
+import { version } from '../../../package.json';
+
 
 @Injectable({
     providedIn: 'root'
@@ -10,9 +16,27 @@ export class StatsService {
 
     baseUrl = environment.apiUrl;
 
-    constructor(private httpClient: HttpClient) { }
+    constructor(private httpClient: HttpClient, private navService: NavService) { }
 
-    public sendClientInfo(clientInfo: ClientInfo) {
-        return this.httpClient.post(this.baseUrl + 'stats/client-info', clientInfo);
+    public async sendClientInfo() {
+        const data = await this.getInfo();
+        this.httpClient.post(this.baseUrl + 'stats/client-info', data);
+    }
+
+    private async getInfo(): Promise<ClientInfo> {
+        const screenResolution = `${window.screen.width} x ${window.screen.height}`;
+
+        const browser = Bowser.getParser(window.navigator.userAgent);
+
+        const usingDarkTheme = await this.navService.darkMode$.pipe(take(1)).toPromise();
+
+        return {
+            os: browser.getOS() as DetailsVersion,
+            browser: browser.getBrowser() as DetailsVersion,
+            platformType: browser.getPlatformType(),
+            kavitaUiVersion: version,
+            screenResolution,
+            usingDarkTheme
+        };
     }
 }
\ No newline at end of file
diff --git a/UI/Web/src/app/home/home.component.ts b/UI/Web/src/app/home/home.component.ts
index 4de69832b..a33a7358e 100644
--- a/UI/Web/src/app/home/home.component.ts
+++ b/UI/Web/src/app/home/home.component.ts
@@ -5,7 +5,6 @@ import { take } from 'rxjs/operators';
 import { MemberService } from '../_services/member.service';
 import { AccountService } from '../_services/account.service';
 import { StatsService } from '../_services/stats.service';
-import * as ClientUtils from "../shared/utils/clientUtils";
 
 @Component({
   selector: 'app-home',
@@ -35,9 +34,7 @@ export class HomeComponent implements OnInit {
 
       this.accountService.currentUser$.pipe(take(1)).subscribe(user => {
     
-        this.statsService.sendClientInfo(ClientUtils.getClientInfo())
-        .pipe(take(1))
-        .subscribe(resp => {/* No Operation */});
+        this.statsService.sendClientInfo();
 
         if (user) {
           this.router.navigateByUrl('/library');
diff --git a/UI/Web/src/app/series-detail/series-detail.component.scss b/UI/Web/src/app/series-detail/series-detail.component.scss
index d154833cf..a20fa48be 100644
--- a/UI/Web/src/app/series-detail/series-detail.component.scss
+++ b/UI/Web/src/app/series-detail/series-detail.component.scss
@@ -8,6 +8,7 @@
 
 .poster {
     width: 100%;
+    max-height: 230px;
 }
 
 .rating-star {
diff --git a/UI/Web/src/app/shared/utils/clientUtils.ts b/UI/Web/src/app/shared/utils/clientUtils.ts
deleted file mode 100644
index 7170df442..000000000
--- a/UI/Web/src/app/shared/utils/clientUtils.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-import * as Bowser from "bowser";
-import { version } from '../../../../package.json';
-import { ClientInfo } from "src/app/_models/client-info";
-import { DetailsVersion } from "src/app/_models/details-version";
-
-const getClientInfo = (): ClientInfo => {
-
-    const screenResolution = `${window.screen.width} x ${window.screen.height}`;
-
-    const browser = Bowser.getParser(window.navigator.userAgent);
-
-    return {
-        os: browser.getOS() as DetailsVersion,
-        browser: browser.getBrowser() as DetailsVersion,
-        platformType: browser.getPlatformType(),
-        kavitaUiVersion: version,
-        screenResolution
-    };
-}
-
-export { getClientInfo };
\ No newline at end of file