It's about time, too.
I hate overtext but love irony.
Grades (color) of Goods
The grade of a good or a racial technology is indicated
by the color of its token. There are three grades of
goods and racial technologies: basic, premium,
and luxury. The higher a good’s grade, the more
expensive it is.
But the price is printed on it anyway. So I think his point is that the coloring is superfluous.