bright spot
noun1
Figuratively A good part of something that is otherwise fairly bad or unpleasant.
- Nevertheless, there are a few bright spots. Both railways have some smartly-timed R.D.C. schedules over the shorter distances.1959 November, J. N. Westwood, “The Railways of Canada”, in Trains Illustrated, page 553:
2
Used other than figuratively or idiomatically: see bright, spot.