22.214.171.124.1 Semantic definition
Specifies how the transition shall occur between the previous and this event.
126.96.36.199.2 Type values
Specifies that transition of the width between the previous width event and this event shall be constant and equal to the previously specified width meaning that the change in width shall occur instantaneously at the location of this event.
Specifies that the transition of the width between the previous width event and this event shall be linearly interpolated providing a gradual width change.