Stretch in to left/topStretch in to left/bottomStretch in to right/bottomStretch in to right/top.Stretch in to middle from all sides (zoom out)*Stretch to all sides from middle (zoom in)Reveal from middle to all sidesReveal from all sides to middle(Reveal 4 pieces from all sides to middle)Stretch 4 pieces from all sides to middle7Reveal 4 pieces from left, top, right, bottom to middleReveal elliptic from leftReveal elliptic from rightStrip from right continuouslyStrip from left continuously Strip from left, fill from right