Change Style Animation/Easing
You've got animations for a lot of the other event actions, but for change style, which I'd say is pretty essential, there are no animations. Example, hovering over some text and it fades to another colour is *very* common, yet the only way to do that is to:
a) have 3 layers, 1 trigger hotspot, 1 text in colour 1, 1 text in colour 2
b) mouseover hotspot shows text in colour 2, fade
which, with loads of text, is a pain.