tree

The simplified form of axiom and rules (without color):

axiom: X
rules: 
 F => FF
 X => F-[[X]+X]+F[+FX]-X

tree

supercollider audio rendering

supercollider Pbindef

tree Panola

https://anvaka.github.io/lsystem/?code=%2F%2F%20Tree%0Aaxiom%3A%20X%0Arules%3A%20%0A%20F%20%3D%3E%20FF%0A%20X%20%3D%3E%20F-%5B%5BX%5D%2BX%5D%2BF%5B%2BFX%5D-X%0A%0Adirection%3A%20%5B0%2C%201%2C%200%5D%0Aangle%3A%2022.5