def blink(self, dt):
        if self.renderable:
            del self.renderable
        else:
            self.renderable.color = self.COLOR
Via the admin interface, create a new section in the the tree under
dataset/ETHPy150Open caseman/grease/examples/blasteroids3.py/PlayerShip.blink--crossover with--dataset/ETHPy150Open mazelife/django-scaffold/scaffold/tests.py/SectionTest.test_admin_section_create_move