To reproduce, open creative inventory or obtain an item in survival.
Most items appear slightly duller in inventories
Transparent and translucent blocks in the inventory render their bottom face
Shulker boxes and chests in the inventory are shaded very light
Entities are shaded far darker than usual
Items in inventory, subtitles, background, chat, notifications on the screen and game menu are darker and have a blue tint when you have the night vision effect