switch to SDL3+BepisLoader

Plugin/Plugin.cs

@@ -0,0 +1,49 @@
+using BepInEx;
+using BepInEx.Configuration;
+using BepInEx.Logging;
+using BepInEx.NET.Common;
+using BepInExResoniteShim;
+using Elements.Core;
+using FrooxEngine;
+
+namespace ResoniteImGuiLib;
+
+public static class ImGuiLib
+{
+    public static ImGuiInstance GetOrCreateInstance(ImGuiReady onReady)
+    {
+        return GetOrCreateInstance("global", onReady);
+    }
+    public static ImGuiInstance GetOrCreateInstance(string name = "global", ImGuiReady? onReady = null)
+    {
+        return ImGuiInstance.GetOrCreate(name, onReady);
+    }
+}
+
+[ResonitePlugin(PluginMetadata.GUID, PluginMetadata.NAME, PluginMetadata.VERSION, PluginMetadata.AUTHORS, PluginMetadata.REPOSITORY_URL)]
+[BepInDependency(BepInExResoniteShim.PluginMetadata.GUID, BepInDependency.DependencyFlags.HardDependency)]
+public class Plugin : BasePlugin
+{
+#nullable disable
+    internal static new ManualLogSource Log;
+    internal static new ConfigFile Config;
+
+    internal static ConfigEntry<color> DefaultBackgroundColor;
+#nullable enable
+
+    public static readonly CancellationTokenSource CancellationToken = new CancellationTokenSource();
+
+    public override void Load()
+    {
+        Log = base.Log;
+        Config = base.Config;
+
+        DefaultBackgroundColor = Config.Bind("General", "DefaultBackgroundColor", new color(0.45f, 0.55f, 0.60f, 1.00f), "Default background color that new ImGui windows will have.");
+
+        BepisResoniteWrapper.ResoniteHooks.OnEngineReady += () =>
+        {
+            Engine.Current.OnShutdown += () => CancellationToken.Cancel();
+            Engine.Current.OnShutdownRequest += _ => CancellationToken.Cancel();
+        };
+    }
+}