diff --git a/Browser/FormBrowser.Designer.cs b/Browser/FormBrowser.Designer.cs
index c98f32b9..5b0ef769 100644
--- a/Browser/FormBrowser.Designer.cs
+++ b/Browser/FormBrowser.Designer.cs
@@ -27,7 +27,7 @@ private void InitializeComponent() {
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.BackColor = TweetDuck.Browser.TweetDeckBrowser.BackgroundColor;
+            this.BackColor = TweetLib.Core.Features.TweetDeck.TweetDeckBrowser.BackgroundColor;
             this.ClientSize = new System.Drawing.Size(1008, 730);
             this.Icon = Properties.Resources.icon;
             this.Location = TweetDuck.Controls.ControlExtensions.InvisibleLocation;
diff --git a/Browser/Handling/CustomLifeSpanHandler.cs b/Browser/Handling/CustomLifeSpanHandler.cs
index a8b8fb96..2b65410c 100644
--- a/Browser/Handling/CustomLifeSpanHandler.cs
+++ b/Browser/Handling/CustomLifeSpanHandler.cs
@@ -1,21 +1,15 @@
 using CefSharp;
 using CefSharp.Handler;
 using TweetLib.Core;
-using TweetLib.Utils.Static;
+using TweetLib.Core.Features.Twitter;
 
 namespace TweetDuck.Browser.Handling {
 	sealed class CustomLifeSpanHandler : LifeSpanHandler {
-		private static bool IsPopupAllowed(string url) {
-			return url.StartsWithOrdinal("https://twitter.com/teams/authorize?") ||
-			       url.StartsWithOrdinal("https://accounts.google.com/") ||
-			       url.StartsWithOrdinal("https://appleid.apple.com/");
-		}
-
 		public static bool HandleLinkClick(WindowOpenDisposition targetDisposition, string targetUrl) {
 			switch (targetDisposition) {
 				case WindowOpenDisposition.NewBackgroundTab:
 				case WindowOpenDisposition.NewForegroundTab:
-				case WindowOpenDisposition.NewPopup when !IsPopupAllowed(targetUrl):
+				case WindowOpenDisposition.NewPopup when !TwitterUrls.IsAllowedPopupUrl(targetUrl):
 				case WindowOpenDisposition.NewWindow:
 					App.SystemHandler.OpenBrowser(targetUrl);
 					return true;
diff --git a/Browser/TweetDeckBrowser.cs b/Browser/TweetDeckBrowser.cs
index 300d8e2a..69b84ae4 100644
--- a/Browser/TweetDeckBrowser.cs
+++ b/Browser/TweetDeckBrowser.cs
@@ -17,8 +17,6 @@
 
 namespace TweetDuck.Browser {
 	sealed class TweetDeckBrowser : IDisposable {
-		public static readonly Color BackgroundColor = Color.FromArgb(28, 99, 153);
-
 		public bool Ready => browserComponent.Ready;
 
 		public bool Enabled {
@@ -54,7 +52,7 @@ public TweetDeckBrowser(FormBrowser owner, PluginManager pluginManager, ITweetDe
 			};
 
 			// ReSharper disable once PossiblyImpureMethodCallOnReadonlyVariable
-			this.browser.BrowserSettings.BackgroundColor = (uint) BackgroundColor.ToArgb();
+			this.browser.BrowserSettings.BackgroundColor = (uint) TweetDeckBrowserImpl.BackgroundColor.ToArgb();
 
 			var extraContext = new TweetDeckExtraContext();
 			var resourceHandlerRegistry = new CefResourceHandlerRegistry();
diff --git a/lib/TweetLib.Core/Features/TweetDeck/TweetDeckBrowser.cs b/lib/TweetLib.Core/Features/TweetDeck/TweetDeckBrowser.cs
index 71c1c838..c8a2f447 100644
--- a/lib/TweetLib.Core/Features/TweetDeck/TweetDeckBrowser.cs
+++ b/lib/TweetLib.Core/Features/TweetDeck/TweetDeckBrowser.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Drawing;
 using TweetLib.Browser.Base;
 using TweetLib.Browser.Contexts;
 using TweetLib.Browser.Events;
@@ -16,6 +17,8 @@
 
 namespace TweetLib.Core.Features.TweetDeck {
 	public sealed class TweetDeckBrowser : BaseBrowser<TweetDeckBrowser> {
+		public static readonly Color BackgroundColor = Color.FromArgb(28, 99, 153);
+
 		private const string NamespaceTweetDeck = "tweetdeck";
 		private const string BackgroundColorOverride = "setTimeout(function f(){let h=document.head;if(!h){setTimeout(f,5);return;}let e=document.createElement('style');e.innerHTML='body,body::before{background:#1c6399!important;margin:0}';h.appendChild(e);},1)";
 
diff --git a/lib/TweetLib.Core/Features/Twitter/TwitterUrls.cs b/lib/TweetLib.Core/Features/Twitter/TwitterUrls.cs
index 35f3cee3..ef1e620c 100644
--- a/lib/TweetLib.Core/Features/Twitter/TwitterUrls.cs
+++ b/lib/TweetLib.Core/Features/Twitter/TwitterUrls.cs
@@ -22,6 +22,12 @@ public static bool IsTwitterLogin2Factor(string url) {
 			return url.Contains("://twitter.com/account/login_verification") || url.Contains("://mobile.twitter.com/account/login_verification");
 		}
 
+		public static bool IsAllowedPopupUrl(string url) {
+			return url.StartsWithOrdinal("https://twitter.com/teams/authorize?") ||
+			       url.StartsWithOrdinal("https://accounts.google.com/") ||
+			       url.StartsWithOrdinal("https://appleid.apple.com/");
+		}
+
 		public static string? GetFileNameFromUrl(string url) {
 			return StringUtils.NullIfEmpty(Path.GetFileName(new Uri(url).AbsolutePath));
 		}