I think just some graffiti and some distant blaster fire works to help sell it. Not everyone would rise or fight, so where we see the heroes and the troopers knocking on doors etc. would be like yellow zones and the FO is trying to contain the immediate zone.
The crawl already comments on the unrest of the galaxy, so doing some “minor” things would be enough.
It’s like we are trying to make the movie actually make sense. Lol.