private static PhotinoWindow CreateWindow(string workingDir, string title = "smtp4dev") { var iconFile = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? "app/icon.ico" : "app/icon.svg"; var result = new PhotinoWindow() .SetIconFile(Path.Combine(workingDir, iconFile)) .SetTitle(title) .SetDevToolsEnabled(true) .SetContextMenuEnabled(false); result.RegisterWebMessageReceivedHandler((s, m) => { switch (m) { case "close": result.Close(); break; } }); return(result); }