This station has very interesting big signs. The station names are all capitalized, except for the first C on some of them..? And the others have it spelled normally, but they're different - more like stickers than signs. They also show outbound Metra trains going to the "South Suburbs" instead of saying "University Park", or "From Chicago"
The waiting area also has two pieces of unique signage. A square poster with directions to both O'Hare and Midway, and a rail map of Chicago!