Another piece of noo noos for your delight, and perhaps investigation, is that removal of Moire.saver from a Panther installation presented problems.
Moire continued to appear in the side-panel of Screen Saver even though it had been removed (command-backspace) from System/Library/Screen Savers to Trash. Not before invisible files had been invoked in Search did it show up in that Screen Savers folder, and was then able to be dragged to the Desktop, where it remained even after Secure Empty Trash had dealt with the copy already in Trash. Throughout this to-ing and fro-ing there had been no copy of Moire.saver, either visible or invisible, in ~/Library/Screen Savers.
de
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(60x) 13DT + 3PB + PTPro; (G3) 7DT/MT; (G4) 3T + PB. System 8.1 to OS 10.5.8
Moire continued to appear in the side-panel of Screen Saver even though it had been removed (command-backspace) from System/Library/Screen Savers to Trash. Not before invisible files had been invoked in Search did it show up in that Screen Savers folder, and was then able to be dragged to the Desktop, where it remained even after Secure Empty Trash had dealt with the copy already in Trash. Throughout this to-ing and fro-ing there had been no copy of Moire.saver, either visible or invisible, in ~/Library/Screen Savers.
de
_________________
(60x) 13DT + 3PB + PTPro; (G3) 7DT/MT; (G4) 3T + PB. System 8.1 to OS 10.5.8