2.1.1193 Part 1 Section 19.7.41, ST_TLTimeNodeFillType (Time Node Fill Type)

a.   The standard does not specify how to interpret the transition fill type.

PowerPoint uses this value to signify that an element's properties reset to their original values after the element becomes inactive.

b.   The standard does not specify how to interpret the freeze fill type.

PowerPoint uses this value to signify that an element's properties should remain at their ending values while their parent is still running or holding, or until another sibling element is started under a seq element or an excl element.

c.   The standard does not specify how to interpret the hold fill type.

PowerPoint uses this value to signify that an element's properties remain at their ending values while their parent is still running or holding.

d.   The standard does not specify how to interpret the remove fill type.

PowerPoint uses this value to signify that an element's properties reset to their original values after the element becomes inactive.