Editor/MyEditorMenu.cs
Editor menu helper that adds a menu item under Editor > LichessNET Port. When selected it shows a simple dialog via EditorUtility.DisplayDialog.
File Access
using Editor;
public static class MyEditorMenu
{
[Menu( "Editor", "LichessNET Port/My Menu Option" )]
public static void OpenMyMenu()
{
EditorUtility.DisplayDialog( "It worked!", "This is being called from your library's editor code!" );
}
}