A remix of this project (original made by spaceflyer234 )
(For lack of a better term/word) fading pentrails 's workaround added - using a continuous (90% ghosted 'overlay') stamping.
You could make actual fading trails by making a sprite got to the center with a glost effect and clear the pen and then stamp.
Can you make your remix and show what you have in mind? I'm not sure I understand.