The notation of Electronic music is fraught with problems. The graphics are always possible, but what to notate needs to be carefully planned.
Notating the settings of specific equipment can become obsolete. Notating the approximate sound and giving the player an imprssion of what they will hear is perhaps more helpful.
With the increasing use of MAX/MSP it is now possible to store patches for download that are locked from editing interference and so retain exactly the intentions of the composer.