There were five rainbow stone pillars lined up with the 13 golden pillars, and they were just as tall as the golden pillars.
The five rainbow stone pillars were where the Radiance Envoys would sit.
However, the Radiance Envoys generally did not participate in the Radiance Hundred Sequence selection.
The stone pillars were rainbow-colored to represent the color of uncontracted sacred source lifeforms. This was clear enough to tell that the Radiance Federation valued their Radiance Envoys.
Or rather, they valued their legacies.
There were 10 five-colored stone pillars below the 13 golden pillars and five rainbow pillars.
These five-colored stone pillars were shorter, and each pair flanked a rainbow pillar.
These 10 five-colored pillars were where the Radiance Knights sat.
There were also 100 silver pillars significantly shorter than the five-colored pillars.
This was where the Radiance Hundred Sequence sat.