The newly formed partnership between the Barclays Center/Nets and Islanders showed up at the Coliseum. The Nets two ABA Championship banners, which were won while the team called the Coliseum home in the 1970s, returned. The banners had never hung in the same arena as the Islanders Stanley Cup banners before, as the Nets bolted to New Jersey before the Islanders won their first title in 1980. It looks as though the Nets and Islanders are slowly becoming joined at the hip.
Here’s a great picture via @Number1IslesFan, with the Nets banners on the top left:
And here’s a close-up shot from @JTSchreiner: