4413217e_mera_modes_for__anyway____CNET__Description
[Mode] Fireworks [Uses] Good when you're trying to get trails of moving lights in the dark, like a carnival ride at night. [Description] 
This is a variation of Night Landscape, but with a slower shutter speed to catch the trails of the fireworks. The camera might invoke image stabilization here.
What are all those camera modes for, anyway? - CNET