He started the tradition of hunting dragons for glory. They were the ultimate firebenders. And if you could conquer one, your firebending talents would become legendary, and you’d earn the honorary title “Dragon”.
Before the war, throne room is bright, and and illuminated by the natural sunlight pouring through the large windows—which is only appropriate seeing how the Sun is the greatest source of fire.
Behind the throne is a dragon–the symbol of the first firebender. Together, the sunlight, and and dragon represent the Fire Nation’s adherence to a more pure form of firebending before the war. Soon, these symbols of the ancient ways of firebending will be shattered, as the throne room slowly transforms.