/usr/share/k3d/lsystem/abop-fractal.ls is in k3d-data 0.8.0.3-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | # --- L-System Parser/Mutator --- Lj Lapre ----------------------------------
2 # recursion depth
90 # angle
20 # thickness as % of length
X+cX+cX+cX
X=^F+F+F+F+&f
F=F+f-FF+F+FF+Ff+FF-f+FF-F-FF-Ff-FFF
f=ffff
@
|