new_contents: from ggame import App, Color, LineStyle, Sprite
  from ggame import CircleAsset
  
  red = Color(0xff0000, 1.0)
  green = Color(0x00ff00, 1.0)
  blue = Color(0x0000ff, 1.0)
  black = Color(0x000000, 1.0)
  
  thinline = LineStyle(1, black)
  mycircle = CircleAsset(5, thinline, blue)
  xcoordinates = range(100, 600, 10)
  
  # Generate a list of sprites that form a line!
  sprites = [Sprite(mycircle, (x, x*0.5 + 100)) for x in xcoordinates]
  
  myapp = App()
  myapp.run()
  
subject: Create tutorial2.py