Defines the animation effect of progress button.
None - The button will not have any animation effect on the text content.SlideLeft - The text content will slide to the left as an animation effect.SlideRight - The text content will slide to the right as an animation effect.SlideUp - The text content will slide up as an animation effect.SlideDown - The text content will slide down as an animation effect.ZoomIn - The text content will zoom in as an animation effect.ZoomOut - The text content will zoom out as an animation effect.