Code Sketch

clear()
invisible()
setBackgroundH(pink,yellow)

def p(t:Turtle,a:Int)= runInBackground {
t.setPenColor(black)
t.right(a)
t.setPenThickness(10)
t.setFillColor(cm.radialGradient(0,0,blue.fadeOut(0.6),250,red.fadeOut(0.6),true))
repeat(4) {
t.forward(50)
t.left(45)
t.forward(50)
t.right(90)
t.forward(50)
t.left(45)
t.forward(50)
t.right(90)    
}
}

val t1=newTurtle(0,0)
val t2=newTurtle(0,0)
val t3=newTurtle(0,0)
val t4=newTurtle(0,0)
val t5=newTurtle(0,0)
val t6=newTurtle(0,0)
val t7=newTurtle(0,0)
val t8=newTurtle(0,0)
p(t1,0)
p(t2,45)
p(t3,90)
p(t4,135)
p(t5,180)
p(t6,225)
p(t7,270)
p(t8,315)
setPosition(300,300)
setPenColor(black)
write("design by Dhiraj")
write("Mhalsakantschool")