People perform during a grand evening gala marking the 70th founding anniversary of the People's Republic of China in Beijing, capital of China, Oct 1, 2019. [Photo/Xinhua]

Another highlight involved more than 3,000 performers carrying light panels. They moved to portray different images as the panels changed, displaying images such as a huge national flag, the Great Wall and a white peace dove.

The panel technology had been used in other places for anniversary celebrations. For example, about 8,000 organic light-emitting diode panels were used during a gala entitled "Stride Forward, the Nation", at the Great Hall of the People in Beijing on Sunday.