I don't think you did anything to make her be in pink. I'm wondering if this is a delayed bounce from the greens night before last. I have seen some cats that build up to a bounce in (what I think is) a weird manner, like climbing up a mountain and taking their sweet time getting to the top. That 300 at am +3 this morning looks to me like she's getting to the top of a bounce. Remember, bounces aren't usually a straight 400-400-400 - many cats seem to bobble around while they are in a bounce.
See how she is tomorrow and maybe it will be more obvious, or maybe it's not a bounce. But I'm thinking that's what it looks like to me.
The dose decrease could be a factor, of course. Time will tell us.