switch to ImTool

FModel/Framework/ImGuiFontConfig.cs

@@ -0,0 +1,16 @@
+using System;
+
+namespace FModel.Framework;
+
+public readonly struct ImGuiFontConfig
+{
+    public ImGuiFontConfig(string fontPath, int fontSize)
+    {
+        if (fontSize <= 0) throw new ArgumentOutOfRangeException(nameof(fontSize));
+        FontPath = fontPath ?? throw new ArgumentNullException(nameof(fontPath));
+        FontSize = fontSize;
+    }
+
+    public string FontPath { get; }
+    public int FontSize { get; }
+}