repair manager project

ModpackUpdater.Apps.Client/Program.cs

@@ -1,9 +1,11 @@
 using Castle.Core.Logging;
 using Gtk;
+using Microsoft.Win32;
 using ModpackUpdater.Manager;
 using Newtonsoft.Json;
 using Pilz;
 using Pilz.Configuration;
+using Pilz.UI.Gtk.Symbols;
 using System.Diagnostics;
 using System.Runtime.InteropServices;
 using System.Text;
@@ -18,10 +20,9 @@ public static class Program
     private static readonly ILogger log = new ConsoleLogger();
     private static Application uiApp;
 
+    public static IGtkSymbolFactory<AppSymbols> Symbols { get; } = new AppSymbolFactory();
     public static ISettings Settings => settingsManager.Instance;
-
     public static ILogger Log => log;
-
     internal static Options Options { get; private set; }
 
     [DllImport("kernel32.dll")]
@@ -54,6 +55,9 @@ public static class Program
 
     private static void RunApp(UpdateCheckOptionsAdv updateOptions)
     {
+        if (UsesWindowsDarkTheme())
+            Environment.SetEnvironmentVariable("GTK_THEME", "Adwaita:dark");
+
         Application.Init();
 
         uiApp = new Application("ModpackUpdater.Apps.Client", GLib.ApplicationFlags.None);
@@ -170,4 +174,19 @@ public static class Program
             return info.ConfigUrl;
         return configUrl;
     }
+
+    private static bool UsesWindowsDarkTheme()
+    {
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+        {
+            try
+            {
+                return Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize")?.GetValue("AppsUseLightTheme") as bool? ?? default;
+            }
+            catch (Exception)
+            {
+            }
+        }
+        return default;
+    }
 }