Open the python script in the text editor of your choice.

You will find many variables at the start of the script you can change:

Rules:

rules['X'] = 'X+YF+' # Dragon curve

rules['Y'] = '-FX-Y'

axiom = 'FX'

angle = 90

Looking like these, you can write your own or uncomment the ones already there.

iterations = 13 # number of iterations

step = 9 # step size / line length

Here you can set the number of iterations and the length of one step. Don't go too low on the step-size and too high on the iterations.

color1 = (105, 46, 26) # brown 1

color2 = (201, 146, 127) # brown 2

color3 = (101, 250, 52) # green

color4 = (255, 255, 255) # white

angleoffset = 90

size = width, height = 1920, 1080 # display with/height

Here you can set the 4 colors (currently set to tree like ones), the angle by which everything is turned and the screen-size.

# startpos = 100, height - 225

# startpos = 50, height / 2 - 50

startpos = width / 2 - 200, height / 2 +30

# startpos = 100, height / 2

# startpos = 10,10

Last one, here you can set the offset on the display

You have to play with all that settings to get the best result. Also try different production rules. If you have/find some interestiong ones, share them please :)