Maybe the title isn't right but basically we had 6 holes cut in our ceiling for downlights. Things looked ok untill we had to play around with them due to a problem with the transformers. Now around the edges when the lights aren't turned on you can see dark edges where the rim doesn't sit flush against the ceiling.I've tried to puch the lights in further but they won't budge. Just wandering if there's anything I can use aroun=d the edges to tidy them up?