Bind.PropertyProxy supports static properties Add PropertySheet.AddStaticProperty Add Utility.PlayRawSound( string file ) Add notification preferences https://files.facepunch.com/garry/e634e5c8-6be6-449e-a3ad-c73e86f08d34.png Compile notifications are grouped by compile group, swallow old notification, don't show warnings BaseFileSystem.GetFullPath quick return if it contains ":"