diff --git a/Toastify/src/App.xaml.cs b/Toastify/src/App.xaml.cs
index 300dadc8..6dcea03d 100644
--- a/Toastify/src/App.xaml.cs
+++ b/Toastify/src/App.xaml.cs
@@ -467,7 +467,17 @@ public static Thread CallInSTAThreadAsync(Action action, bool background, string
             if (action == null)
                 return null;
 
-            Thread t = new Thread(() => action())
+            Thread t = new Thread(() =>
+            {
+                try
+                {
+                    action();
+                }
+                catch (Exception ex)
+                {
+                    logger.Error($"Unknown error in {nameof(CallInSTAThreadAsync)}", ex);
+                }
+            })
             {
                 IsBackground = background
             };
diff --git a/Toastify/src/Helpers/Markdown/Markdown.Styles.xaml b/Toastify/src/Helpers/Markdown/Markdown.Styles.xaml
index fefe82e9..f0583cee 100644
--- a/Toastify/src/Helpers/Markdown/Markdown.Styles.xaml
+++ b/Toastify/src/Helpers/Markdown/Markdown.Styles.xaml
@@ -23,13 +23,13 @@
 
     <Style x:Key="H3Style" TargetType="Paragraph">
         <Setter Property="FontSize" Value="18" />
-        <Setter Property="Foreground" Value="#99000000" />
+        <Setter Property="Foreground" Value="#ff000000" />
         <Setter Property="FontWeight" Value="Bold" />
     </Style>
 
     <Style x:Key="H4Style" TargetType="Paragraph">
         <Setter Property="FontSize" Value="14" />
-        <Setter Property="Foreground" Value="#99000000" />
+        <Setter Property="Foreground" Value="#ff000000" />
         <Setter Property="FontWeight" Value="Bold" />
     </Style>
 
diff --git a/Toastify/src/View/ChangelogView.xaml b/Toastify/src/View/ChangelogView.xaml
index 1180f3b5..ba024ba8 100644
--- a/Toastify/src/View/ChangelogView.xaml
+++ b/Toastify/src/View/ChangelogView.xaml
@@ -8,7 +8,7 @@
         xmlns:viewmodel="clr-namespace:Toastify.ViewModel"
         mc:Ignorable="d"
         Title="Toastify - Changelog" Height="520" MaxHeight="520" Width="480" SizeToContent="Height" ResizeMode="NoResize"
-        WindowStartupLocation="CenterScreen" WindowStyle="SingleBorderWindow" Topmost="True" Icon="/Toastify;component/Resources/ToastifyIcon.ico">
+        WindowStartupLocation="CenterScreen" WindowStyle="SingleBorderWindow" Icon="/Toastify;component/Resources/ToastifyIcon.ico">
 
     <Window.Resources>
         <ResourceDictionary>
diff --git a/Toastify/src/View/ChangelogView.xaml.cs b/Toastify/src/View/ChangelogView.xaml.cs
index d2ade883..8fbdd774 100644
--- a/Toastify/src/View/ChangelogView.xaml.cs
+++ b/Toastify/src/View/ChangelogView.xaml.cs
@@ -15,7 +15,7 @@ public partial class ChangelogView : Window
     {
         private static readonly ILog logger = LogManager.GetLogger(typeof(ChangelogView));
 
-        private static ChangelogView current;
+        private static bool showed;
 
         private readonly ChangelogViewModel viewModel;
 
@@ -29,18 +29,21 @@ public ChangelogView()
 
         internal static void Launch()
         {
-            if (current != null)
+            if (showed)
                 return;
 
             if (logger.IsDebugEnabled)
                 logger.Debug("Launching ChangelogViewer...");
 
-            current = new ChangelogView();
             App.CallInSTAThreadAsync(() =>
             {
-                current.DownloadChangelog();
-                current.Show();
+                ChangelogView changelogView = new ChangelogView();
+                changelogView.DownloadChangelog();
+
+                showed = true;
+                changelogView.Show();
                 SystemSounds.Asterisk.Play();
+
                 Dispatch.Run();
             }, true, "Changelog Viewer");
         }
diff --git a/ToastifyAPI/GitHub/GitHubAPI.cs b/ToastifyAPI/GitHub/GitHubAPI.cs
index 1da9a196..ebc7be55 100644
--- a/ToastifyAPI/GitHub/GitHubAPI.cs
+++ b/ToastifyAPI/GitHub/GitHubAPI.cs
@@ -107,8 +107,6 @@ private T DownloadJsonInternal<T>(string url)
 
         private static readonly Regex issueOrPullRegex = new Regex(@"\B#([0-9]+)\b", RegexOptions.Compiled);
 
-        private static readonly Regex hashRegex = new Regex(@"\b([a-f0-9]{7,})\b", RegexOptions.Compiled);
-
         private static readonly Regex emojiRegex = new Regex(@":([^\s]+):", RegexOptions.Compiled);
 
         public string GitHubify(string ghText)
@@ -130,14 +128,6 @@ public string GitHubify(string ghText)
                 return match.Result(pattern);
             });
 
-            // Hashes ([a-f0-9]{7,})
-            ghText = hashRegex.Replace(ghText, match =>
-            {
-                string hash = match.Groups[1].Value;
-                string pattern = this.GitHubify_Hash(hash);
-                return match.Result(pattern);
-            });
-
             // Emojis (::)
             ghText = emojiRegex.Replace(ghText, match =>
             {