This effect produces rhythmical pulsing of the object. The duration option regulates the speed of the pulse. You can change the scale of the pulsing objects by designating appropriate value in Zoom In/Out text boxes.
Duration : This option controls duration of the animation in seconds * 10.
Scale : Scale option is used for scaling up or scaling down objects. You can set the scale at half time too.
This option is only available if you are working with text.
Frame delay : Sets delay between frames.
This option is only available if you are working with text. Select brush type and control separately brush colors. You can also control pen color and pen width.
Two default presets are also available. Check the lower left corner in the Effects window.