python turtle

from turtle import *

import colorsys

tracer(100)

h=0.3

bgcolor('black')

for i in range(190):

c = colorsys.hsv_to_rgb(h,1,1)

fillcolor(c)

h+=0.005

begin_fill()

circle(190-i,90)

lt(90)

lt(20)

circle(190-i,90)

lt(18)

end_fill()

done()

from turtle import *

import colorsys

tracer(100)

h=0.3

bgcolor('black')

for i in range(260):

c = colorsys.hsv_to_rgb(h,1,1)

fillcolor(c)

h+=0.005

begin_fill()

circle(190-i,90)

lt(90)

# lt(20)

circle(190-i,90)

lt(18)

end_fill()

done()

from turtle import *

speed(0)

bgcolor("black")

def spiral(distance):

for i in range(distance):

fd(i)

rt(120)

colors = ["white", "green", "yellow", "purple", "blue", "orange"]

for i in range(6):

color(colors[i % 6])

spiral(200)

rt(60)

hideturtle()

done()

from turtle import *

def suare():

for i in range(2):

fd(400)

lt(90)

fd(250)

lt(90)

color("black")

fillcolor("red")

begin_fill()

suare()

end_fill()

color("grey")

begin_fill()

lt(90)

fd(290)

lt(90)

fd(10)

lt(90)

fd(650)

lt(90)

fd(10)

lt(90)

fd(360)

end_fill()

fd(135)

penup()

rt(90)

fd(140)

pendown()

def draw_star(size):

fillcolor("yellow")

begin_fill()

for _ in range(5):

fd(size * 2.5)

rt(144)

end_fill()

title("Yellow Star")

bgcolor("white")

color("yellow")

draw_star(50)

fd(48)

begin_fill()

for i in range(5):

fd(30)

rt(72)

end_fill()

hideturtle()

done()