OptionalcolorOptionaldurationOptionalholdThe fraction of the lifetime the text stays fully opaque before it starts fading, 0 to 1.
Defaults to 0 - a straight fade across the whole life, the pre-existing behaviour. 0.5 is
the classic damage-number curve: readable for half its time, then gone.
Optionalrisetotal pixels it rises over its lifetime; defaults to 24
Optionalsize
seconds it takes to fully rise and fade; defaults to 0.8