Notification colour for "success"

I’m trying to add a notification with style = " success"

I’ve used the code below but it defaults to blue rather than green:

Code Sample:

                    title="Success",
                    style="success",
                    timeout=3).show() ``` 

If I change to “danger” it is red and so on but does not seem to work for “success” in green". Am I making a daft mistake?