bool Transient { get; set; }

Summary

If true then this decal will automatically get removed when maxdecals are exceeded. This is good for things like bullect impacts, where you want to keep them around for as long as possible but also don't want to have an unlimited amount of them hanging around. Note that while the component will be destroyed, you probably want a TemporaryEffect component on the GameObject to make sure it all gets fully deleted.