Regarding whether it is a screen saver or not, with the recent (through 11e) changes, what exactly doesn't it do to qualify as a screen saver? It appears to me it now meets all the perceived requirements to be a screen saver.
I believe it is officially "defined" as a simulation. (Jim will correct me if I'm wrong). SereneScreen calls it an "aquarium program".
You'll find this interesting.
https://www.feldoncentral.com/forums...d.php?p=117606
Yes, it seems to also meet all of the perceived requirements to be a screen saver. (I'm not aware of any "actual" requirements).
Many (windows based) simulators define the F1 key to display help.