xfishtank(1x) on Linux
The text b1f35eef452a, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
Fish swimming across your Root Window
Flags it lists
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-C -
-b -
-c -
-d -
-f -
-i -
-m -
-p -
-r