l.turtles.setDefault('atEdge', atEdge)
                }
            },
            pause: {
                button: () => {
                    const isRunning = anim.isRunning()
                    gui.controllers.pause.name(isRunning ? 'resume' : 'pause')
                    isRunning ? anim.stop() : anim.start()
                },
            },
            stepType: {
                chooser: [model.stepType,
                ['minNeighbor', 'patchAspect', 'dataSetAspectNearest', 'dataSetAspectBilinear'