For TPM flashbacks I'm planning on making it kind of golden so you know it's out of the parallel timeline. Things from the better times are yellow, and things from the darker times are dark red. Did you notice the rots scenes? I also kept the saber's blue while the rest was reddish.
EDIT: So I meant to say that the colour correction wouldn't make a difference with TPM. But I plan on redoing the three in the future in HD once Blu-Ray burners are available.