'Tangle.cfdg' is a good one to start withwhen there's more than one rule of the same name, it chooses one randomly each time. You can weight a rule to be more or less likely by putting a number after the name.
r is rotation and s is scale.
(r is rotation and s is scale.
Bloop Fri 16 Jul, 22:10,
Fri 8 May 2009, 21:42,
archived)