Make Every Class Internal

Util/ParticleUtil.cs

@@ -4,7 +4,7 @@ using UnityEngine;
 
 namespace ADOFAIRenderer.Util
 {
-    public static class ParticleUtil
+    internal static class ParticleUtil
     {
         private static readonly ConditionalWeakTable<ParticleSystem, ParticleSystemRenderer> Cache = new();