Tells the feedback server to use the given feedback profile for this event when it is submitted.
The server might ignore this request. Valid profile names and their 'noisiness' are specified in the [Feedback theme specification]( Feedback-theme-spec-0.0.0.html).
A value of null (the default) lets the server pick the profile.
| this |
The event |
| profile |
The feedback profile to use |