The continents which take part.
Red, white and black represent Maori.
One byte can represent 256 colours.
The five rings represent the five continents that participate the colours are for all the countries that take part have a least one of those colours in their flag.
Bright colours would represent the Capitol. The residents of the Capitol took fashion to the extreme and liked to be noticed.
blue and white
that's a good question...
green, red, white