That visualization is not very readable. It's neat looking, but kind of horrible. A regular2d grid with countries across the top and meanings down the side would be wat easier to read, especially you wouldn't have to look up what the letters/number mean.

fascinating. i can't find any subject that includes both red and blue. and the most consistent seems to be "truce" (white).

most varied seems to be 4 colours - death, happiness, intelligence (all muted!), love, respect, wisdom. perhaps those are simply the most popular/general/global concepts and so have more entries?